Hokkaido Climate

Last updated: January 18, 2025

Hokkaido, Japan, showcases a diverse climate primarily classified under the Köppen-Geiger system as Dfb, Dfc, and Dfa. This region experiences significant temperature variations, with winter lows plummeting to a frigid -29°C (-20°F) in February, while summer peaks can soar to a scorching 37°C (99°F) in May. The annual average temperature hovers around 7°C (46°F), reflecting Hokkaido's unique climate characteristics that contribute to its rich biodiversity and stunning seasonal contrasts.

Hokkaido temperature by month

Hokkaido, Japan, experiences distinct seasonal temperature patterns, reflecting the region's stark contrasts throughout the year. Winter months from December to February register freezing lows, with January and February often hitting minimums of -25°C (-13°F) and -29°C (-20°F), while average temperatures remain below zero, creating a crisp, cold atmosphere. As spring approaches in March and April, temperatures gradually rise, transitioning from a minimum of -18°C (-1°F) in March to an average of 5°C (42°F) in April, hinting at the impending warmer months. The dramatic shift to summer is apparent in May, where temperatures spike to an impressive maximum of 37°C (99°F), marking the onset of warmer weather. This upward trend continues into June and July, averaging around 19°C (67°F), before beginning to taper off in the fall, as September returns to more moderate averages of 17°C (63°F). Ultimately, Hokkaido's climate offers a fascinating interplay of cold winters and warm summers, all culminating in a vibrant seasonal tapestry.

Monthly Temperatures in Hokkaido, Japan

The chart illustrates Hokkaido's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec222332415258666863524027
Data source: Hokkaido temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

Sapporo experiences a minimum temperature of -19°C (-2°F) in January and a maximum of 31°C (88°F) in August, while Noboribetsu sees minimums of -14°C (6°F) in January and maximums of 28°C (82°F) in August. In contrast, Hakodate has a minimum temperature of -10°C (15°F) in February and reaches a maximum of 28°C (83°F) in September. For more detailed monthly temperatures, visit monthly temperatures in Sapporo, monthly temperatures in Noboribetsu, and monthly temperatures in Hakodate.

Precipitation Patterns in Hokkaido

Hokkaido, Japan, exhibits a notable precipitation pattern characterized by varying rainfall throughout the year. The winter months of January and February receive 64 mm (2.5 in) and 72 mm (2.8 in) of precipitation, respectively, with rain and snow contributing to the region's cold landscape. As spring transitions into summer, March experiences a rise to 87 mm (3.4 in), followed by increasing totals in April (79 mm) and May (94 mm), signaling a gradual buildup of moisture conducive to the lush growth that defines the warmer months.

The summer months of June through August witness the highest precipitation levels, with June receiving 106 mm (4.2 in) and August peaking at 169 mm (6.6 in), showcasing the region's susceptibility to wetter conditions during this period. August, in particular, often marks a peak in both rainfall and humidity, while September also sees significant precipitation at 112 mm (4.4 in). As fall approaches, October and November bring 146 mm (5.8 in) and 126 mm (4.9 in), respectively, wrapping up the wetter half of the year. Despite the variation, Hokkaido's climate maintains a consistent pattern of dispersed rainfall across the seasons, with an average of 12 to 15 rainy days per month.

Monthly Average Precipitation in Hokkaido, Japan

The average monthly precipitation in Hokkaido, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec647287799410610516911214712698
Data source: Hokkaido precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Sunshine Duration in Hokkaido

Hokkaido, Japan, showcases a compelling seasonal trend in sunshine duration, with a steady increase from the winter months to the peak summer season. In January, the sun graces the region with just 142 hours, which gradually rises to 194 hours in February as winter wanes. By March, sunshine hours increase to 248 hours, marking the transition into spring, and the warmth of the sun becomes more pronounced. This upward trajectory continues through April (283 hours) and May (298 hours), culminating in the vibrant summer months when July shines as the sunniest period, boasting an impressive 306 hours of sunshine.

As summer gives way to fall, sunshine hours begin to taper off, yet remain substantial. August sees 277 hours of sunshine, followed by a slight decrease in September (264 hours). October maintains a respectable 233 hours, while the onset of winter again reduces sunlight significantly, with November and December recording only 183 hours and 177 hours, respectively. This pattern highlights Hokkaido's seasonal variability, with distinct contrasts showcasing the region's prolonged summer brightness compared to the more limited solar exposure experienced in the depths of winter. The combination of these sunshine trends not only contributes to the beauty of Hokkaido's natural landscapes but also influences seasonal activities and tourism in the region.

Monthly Sunshine in Hokkaido, Japan

Monthly sunshine duration represents the total hours of direct sunlight Hokkaido receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec142h194h248h283h298h289h306h277h264h233h183h177h
Data source: Hokkaido sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Hokkaido UV Index Trends

In Hokkaido, Japan, the UV Index exhibits significant seasonal fluctuations, highlighting the importance of sun protection as the year progresses. During the winter months, from January to February, the UV Index remains moderate, with values of 3 and 4, respectively, allowing for a burn time of about 30 minutes. As spring approaches, March sees a marked increase to a high UV Index of 6, accompanied by a reduction in safe sun exposure to 25 minutes. April and May elevate the index to 8 and 9, categorized as very high, where individuals need to limit their sun exposure to just 15 minutes to prevent skin damage.

The summer months present the highest UV readings, with June and August both reaching an extreme level of 11, resulting in a minimal burn time of only 10 minutes. Meanwhile, July remains slightly lower at 10, still classified as very high, emphasizing the need for vigilance against UV exposure. As autumn arrives, the UV Index begins to decline, dropping to 8 in September and returning to 6 in October, indicating a high-risk period where sun protection remains essential. By the time winter returns in November and December, the UV Index reduces significantly, reflecting levels of 3 and 2 respectively, indicating a lower risk for sunburn but still warranting caution. This UV Index trend underscores the critical nature of adapting sun protection strategies with changing seasons in Hokkaido.

Monthly Maximum UV Index for Hokkaido, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hokkaido. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec346891110118632
Data source: Hokkaido UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Daylight Hours in Hokkaido

Hokkaido, Japan, experiences notable variations in daylight duration throughout the year, directly reflecting the region's distinct seasons. In the winter months, daylight hours are at their shortest, with January offering only 9 hours and December further declining to a mere 8 hours. February marks a gradual increase to 10 hours, while March gains an additional hour, reaching 11 hours. As spring unfolds into summer, daylight duration sharply rises, peaking at 15 hours during the months of June and July, providing ample time for outdoor activities and enjoyment of Hokkaido's scenic landscapes.

As summer transitions to fall, daylight hours gradually diminish, with August witnessing 13 hours of sunlight, followed by September’s decline to 12 hours. This trend continues into October, which sees 10 hours of daylight, and November returning to 9 hours. The cyclical shifts in daylight duration not only highlight the stark contrasts between Hokkaido's seasons but also influence local culture, agriculture, and tourism. Understanding these patterns can enhance appreciation for the beautiful scenery that Hokkaido has to offer throughout the various stages of the year.

Average Monthly Daylight Hours in Hokkaido, Japan

This chart shows the total daylight hours Hokkaido receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec560h628h715h804h881h919h900h833h747h659h580h539h
Data source: Hokkaido daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Hokkaido's Popular Destinations

Abashiri, Japan, experiences a subarctic climate characterized by cold winters and mild summers. January and February are the coldest months, with average temperatures reaching -5°C (24°F) and -7°C (21°F) respectively, and significant snowfall. As spring approaches, temperatures gradually rise, peaking in July and August with averages around 18°C (65°F) to 19°C (67°F). Precipitation is highest in June and August, while the sunniest months are from May to July, offering over 300 hours of sunshine. For more details, you can visit Abashiri climate.

Asahikawa, Japan experiences a dramatic climate range throughout the year, characterized by cold winters and warm summers. January and February see frigid temperatures, with averages around -8°C (19°F) and -6°C (21°F), respectively, accompanied by significant snowfall. By summer, temperatures rise to averages of 21°C (69°F) in July, with August peaking at a max of 32°C (90°F) and high humidity. The region also experiences a notable amount of precipitation, particularly in August with 200 mm (7.9 in) of rainfall. For a detailed overview, visit Asahikawa climate.

Biei, Japan experiences a cold and varied climate throughout the year. Winter months, particularly January and February, see temperatures ranging from -23°C to 7°C and significant snowfall, with February receiving the most precipitation at 94 mm. As spring progresses into summer, temperatures rise, peaking in July and August at a maximum of 31°C, while rainfall also intensifies, particularly in August with 181 mm. Sunshine hours are plentiful during the warmer months, especially in July, where it averages 304 hours. For more detailed climate statistics, visit Biei climate.

Chitose, Japan, experiences a temperate climate marked by cold winters and warm summers. January sees the coldest temperatures, with average highs around -3°C (26°F), while July reaches pleasant averages of 19°C (67°F). Precipitation varies throughout the year, peaking in August at 168 mm (6.6 in) and creating a humid summer. The region enjoys significant sunshine, particularly in July, with around 311 hours of sun. For more detailed information, visit Chitose climate.

Fukushima, Japan experiences a temperate climate with cold winters and warm summers. January temperatures range from -8°C to 9°C, while July sees highs up to 26°C. Precipitation is significant, particularly in summer, with August recording the highest at 193 mm. Sunshine hours peak in May and July, averaging around 305 hours, making these months quite bright. For more details, visit Fukushima climate.

Furano, Japan experiences a diverse climate, characterized by cold winters and warm summers. January and February are particularly frigid, with average temperatures around -8°C to -9°C and significant snowfall, evident from the high precipitation levels. As spring approaches, temperatures rise, peaking in summer with averages of 19°C to 30°C, while June to August sees the highest rainfall. Sunshine is plentiful, especially in the spring and early summer months; May records around 300 hours of sunlight. For more details, visit the Furano climate.

Hakodate, Japan, experiences a temperate climate with cold winters and mild summers. January and February are the coldest months, with average temperatures around -1°C (30°F) and significant snowfall, especially in February, which receives 79 mm of precipitation. As spring arrives in March, temperatures begin to rise, reaching an average of 3°C (38°F) in March and peaking in summer with averages of 19°C (67°F) in July and 21°C (71°F) in August. The city enjoys ample sunshine, particularly from March to June, with April seeing around 282 hours of sunshine. For more details, visit Hakodate climate.

Ishikari, Japan experiences a subarctic climate with cold winters and mild summers. January and February see average temperatures around -3°C (27°F) and significant snowfall, while July and August reach averages of 21°C (69°F) and 22°C (71°F), respectively. Precipitation is highest in August at 182 mm (7.2 in), contributing to a humid summer. Sunshine is abundant in summer months, peaking in July with 321 hours, while winter months have fewer sunny days. For more detailed information, visit Ishikari climate.

Kushiro, Japan experiences a diverse climate with cold winters and mild summers. January temperatures range from a minimum of -14°C to a maximum of 7°C, while July sees milder temperatures between 9°C and 25°C. Precipitation is highest in August at 134 mm, contributing to a relatively wet summer season, while January and February are drier with around 44 mm and 39 mm, respectively. Sunshine hours peak in May with 294 hours, providing a bright contrast to the lighter winter months. For more detailed information, visit Kushiro climate.

Motomachi, Japan, experiences a diverse climate marked by significant temperature variations throughout the year. Winter months, particularly January and February, can plunge to extreme lows, averaging around -8°C (18°F) and -8°C (19°F), while summer temperatures peak around 19°C (67°F) to 33°C (93°F) from July to August. Precipitation is relatively high, especially in August with 139 mm (5.5 in), contributing to lush landscapes. The area enjoys considerable sunshine, especially in May and July, each boasting over 300 hours. For more detailed information, visit Motomachi climate.

Muroran, Japan, experiences a wide range of temperatures throughout the year, with January averaging -1°C (30°F) and July reaching about 19°C (66°F). Precipitation is highest during the summer months, peaking in August at 194 mm (7.7 in), while sunshine hours are most abundant in May with 300 hours. Winters are cold, with temperatures often dropping below freezing, particularly in January and February. For more detailed climate information, visit Muroran climate.

Niseko Town, Japan, experiences a diverse climate characterized by cold winters and mild summers. January and February are the coldest months, with average temperatures around -6°C (22°F) and -5°C (23°F) respectively, while July and August see warmer averages of 20°C (68°F) and 20°C (69°F). Precipitation peaks in August with 147 mm (5.8 in), contributing to lush landscapes, while sunshine hours are highest in July at 313 hours. For more detailed information, visit Niseko Town climate.

Noboribetsu, Japan experiences a humid continental climate characterized by cold winters and warm summers. January and February are the coldest months, with average temperatures around -4°C to -3°C, while July and August peak at approximately 18°C to 20°C. Precipitation is highest in August, reaching 194 mm, contributing to a lush summer landscape. Sunshine is abundant during the summer months, with July enjoying around 304 hours of sunlight, compared to only 146 hours in January. For more details, see Noboribetsu climate.

Otaru, Japan experiences a humid continental climate characterized by cold winters and warm summers. January and February are the coldest months, with average temperatures ranging from -3°C (26°F) to -4°C (25°F) and notable snowfall. The summer months, particularly July and August, see average temperatures reach up to 21°C (70°F) and 29°C (85°F), respectively, accompanied by significant rainfall, especially in August. Otaru enjoys a decent amount of sunshine, peaking at 320 hours in July. For more detailed information, visit Otaru climate.

Rausu, Japan experiences a diverse climate characterized by cold winters and mild summers. January and February are the coldest months, with average temperatures ranging from -6°C (21°F) to -5°C (24°F) and significant snowfall. Precipitation peaks in late summer and autumn, particularly in October, which sees around 182 mm (7.2 in) of rain. Sunshine is abundant, with the highest hours recorded in July at 316 hours. For more details, visit Rausu climate.

Rishiri Town, Japan experiences a subarctic climate with cold winters and mild summers. January and February see average temperatures around -3°C (27°F) and significant snowfall, while July and August enjoy warmer temperatures peaking at 20°C (68°F). The town receives substantial precipitation, particularly in November (172 mm) and August (148 mm), contributing to lush landscapes. Sunshine hours vary throughout the year, with the highest in July at 325 hours. For more details, visit Rishiri Town climate.

Rusutsu, Japan experiences a cold and snowy climate, particularly in winter months where January and February see average temperatures hovering around -5°C (23°F) and abundant snowfall. As spring arrives, temperatures gradually warm, peaking in May with averages around 11°C (53°F). The summer months, especially July and August, can become quite warm, with average highs of 20°C (68°F) and up to 32°C (89°F). Precipitation is highest in August, reaching 147 mm (5.8 in), while sunshine peaks in the summer, with July receiving about 313 hours. For more detailed information, visit Rusutsu climate.

Sapporo, Japan experiences a diverse climate throughout the year, with cold, snowy winters and warm summers. January sees minimum temperatures around -19°C (-2°F) while July boasts averages of 20°C (68°F). Precipitation peaks in August at 183 mm (7.2 in), coinciding with the warmest months, and sunshine hours are highest in July at 321 hours. The transition months of spring and autumn provide moderate temperatures and changing landscapes. For detailed climate information, visit Sapporo climate.

Teshikaga, Japan experiences a distinct climate with cold, snowy winters and mild summers. January sees average temperatures dropping as low as -24°C (-10°F), while summer months, particularly July and August, enjoy averages around 18°C (64°F). Precipitation peaks in August at 143 mm (5.6 in), contributing to the region's lush greenery. The area enjoys substantial sunshine, especially in late spring and summer, with May boasting up to 300 hours of sun. For more detailed climate data, please visit Teshikaga climate.

Wakkanai, Japan experiences a cold climate characterized by cold winters and mild summers. January and February are the coldest months, with average temperatures around -4°C (25°F) and significant snowfall, as indicated by precipitation levels of approximately 69-71 mm. As spring approaches, temperatures gradually rise, peaking in July and August with averages of 18°C (65°F) and 19°C (67°F), respectively. Despite the warm summer months, Wakkanai receives a fair amount of rain, particularly in August, with precipitation reaching 144 mm (5.7 in). The region enjoys a good number of sunshine hours, particularly in July with about 322 hours, providing a stark contrast to the snowy winter months. For more details, visit Wakkanai climate.

Conclusion

In conclusion, Hokkaido, Japan, presents a rich tapestry of climatic characteristics, including temperature fluctuations, precipitation patterns, sunshine duration, UV Index variations, and daylight duration throughout the year. These factors collectively shape the region's unique environment, influencing agricultural practices, tourism, and outdoor activities. From the frigid winters with limited daylight to the vibrant summers of extended sunshine, Hokkaido's climate captivates both residents and visitors alike. Understanding these seasonal dynamics enhances appreciation for the natural beauty and diverse experiences that Hokkaido has to offer, making it a remarkable destination year-round.

Discover the Climate of Hokkaido's Places

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