June Weather in Otaru, Japan

Last updated: August 21, 2025

June in Otaru, Japan is a delightful blend of mild temperatures and refreshing rainfall. With a maximum temperature reaching 24°C (75°F) and an average of 14°C (58°F), the weather invites both locals and visitors to enjoy the city's picturesque beauty. However, as the month progresses, 12 days of rain contribute to a total precipitation of 112 mm (4.4 in), resulting in a lush, vibrant landscape. The humidity hovers around a notable 87%, creating a refreshing atmosphere ideal for exploring Otaru's scenic canals and historic architecture. Whether strolling through the bustling markets or enjoying the views from the hilltops, June offers a unique experience filled with charm.

June Temperature in Otaru

In June, Otaru experiences a delightful transition into summer, with temperatures rising significantly from the chilly grip of winter. The month starts with a minimum of 6°C (44°F) and reaches a comfortable average of 14°C (58°F), peaking at a pleasant 24°C (75°F). This marks a noticeable increase compared to the preceding months, as the city shakes off the lingering cold and embraces warmer, sunnier days. As nature comes alive, Otaru's beautiful landscapes become a stunning backdrop for outdoor activities, making June an ideal time to explore this charming port city. This warming trend sets the stage for July and August, heralding the heart of summer with even higher temperatures and vibrant local festivals.

June Weather in Otaru: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Otaru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otaru, June typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec252633405158677064544229
Data source: Temperature data for Otaru generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Otaru

In June, Otaru, Japan experiences a notable increase in precipitation, with an average of 112 mm (4.4 in) falling over 12 days. This marks a significant rise compared to the previous months, peaking at the onset of summer. The skies often open up even more in August, where rainfall soars to 169 mm (6.7 in), but June sets the stage for this shift, suggesting a transition into the wetter season. Interestingly, while the number of rainy days in June remains moderate, it indicates a trend of consistent moisture that is characteristic of the region during the late spring and early summer, preparing the lush landscapes for the vibrant growth ahead.

June Precipitation Trends in Otaru

The chart displays monthly precipitation patterns in Otaru, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Otaru, June typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8799957690112101169117152167147
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Otaru

June marks the onset of peak humidity in Otaru, Japan, reaching 87% as the summer warmth begins to envelop the city. This rise in moisture levels follows a trend seen from May's already elevated 86%, indicating a transition into a more humid season. As summer progresses, humidity escalates further, peaking in July and August at 93% and 95%, respectively. The pattern suggests that just as temperatures climb, so too does the air's moisture content, creating a steamy atmosphere that characterizes the region's summer months. In contrast, the months leading up to June, from January to April, maintain a more moderate humidity, with figures hovering between 81% and 84%. This gradual increase underscores Otaru's shift into a vibrant and lush summer, where the air is thick with the essence of the season.

June Average Humidity in Otaru

This chart illustrates the average monthly humidity levels in Otaru, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Otaru is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%81%81%86%87%93%95%88%83%79%80%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Otaru

As June arrives in Otaru, Japan, residents and visitors alike should be prepared for intensely bright days, with the UV Index peaking at 9, indicating a very high exposure category. With a burn time of just 15 minutes, it’s essential to stay protected, as the sun’s rays can be particularly fierce this time of year. This trend continues from May, where the UV Index also reached 9, showcasing a pattern of escalating UV intensity leading into summer. As we move forward into July and August, conditions remain equally harsh, reinforcing the importance of sun safety throughout this vibrant season. For those keen on understanding the details, more information can be found at Otaru UV Index.

Maximum UV Index Levels in Otaru for June

The chart shows the monthly maximum UV Index (UVI) for Otaru in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Otaru typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357999108532
Data source: Otaru June UVI data generated using information from the Copernicus Climate Change Service.

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.

June Sunshine in Otaru

In Otaru, Japan, the arrival of June brings a radiant burst of sunshine, contributing to a total of 295 hours of daylight, a commendable highlight in the annual cycle. This month marks a slight dip from May's peak of 310 hours, yet it continues the upward trend established from the bleak winter months. As the days progressively lengthen from January's mere 127 hours, June’s sunlight not only enhances outdoor activities but also enriches the vibrant local culture. Following June, July shines brightest with 320 hours, setting the stage for summer adventures and lively festivals. Overall, the gradual increase in sunshine from the earlier months underscores Otaru's beautiful transition into a warm and inviting summer landscape, creating the perfect backdrop for exploration and enjoyment.

Monthly Sunshine Duration in Otaru: June Highlighted

The June sunshine duration represents the total number of hours Otaru experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec127h186h242h288h310h295h320h294h273h235h178h162h
Data source: Otaru June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Otaru During June

As June arrives in Otaru, Japan, residents and visitors alike can look forward to a notable increase in sunny weather, with a 48% chance of clear skies. This marks a significant leap from the earlier months; for instance, the likelihood of sunny days in April is just 41%, while May sees a dip to 27%. Following June, July maintains a similar likelihood at 47%, indicating that the early summer months hold promise for more sunshine. This trend suggests that as spring transitions into summer, Otaru experiences a welcome shift towards brighter days, making June an ideal time to enjoy outdoor activities in this beautiful coastal city.

Percentage of Sunny Days in June in Otaru

The chart illustrates the percentage of sunny days in Otaru throughout the year, with June highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Otaru experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%21%35%41%27%48%47%33%39%32%34%30%
Data source: Otaru June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Otaru in June

In Otaru, Japan, June marks a delightful turning point in daylight duration, with the sun gracing the sky for an impressive 15 hours. This peak in daylight follows a gradual increase that begins in the winter months, starting at just 9 hours in January. As spring arrives, the days lengthen steadily, with April welcoming 13 hours and May further extending this to 14 hours. The transition into summer brings the longest days of the year, creating an ideal backdrop for outdoor activities and vibrant local festivities. However, as July approaches, we notice a slight decline, with daylight tapering off to 14 hours. This ebb and flow not only reflects the seasonal rhythm but also highlights the beauty of Otaru's ever-changing landscape, inviting residents and visitors alike to embrace the warmth and vibrancy of summer days.

Average Daylight Hours in Otaru for June

The chart illustrates the variation in daylight duration in Otaru throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 22m10h 30m11h 56m13h 24m14h 40m15h 18m14h 59m13h 52m12h 28m11h9h 42m9h 1m
Data source: Otaru daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Otaru

In Otaru, Japan, the June winds offer a gentle respite, with an average speed of just 2.9 m/s (6 mph). This pattern marks a decline from the brisker breezes of early spring, where winds reach about 4.1 m/s in March and 4.2 m/s in April. As the region transitions from the chill of winter, the wind speed continues to ease into summer. This trend reflects a seasonal shift that not only contributes to the mild ambiance but also invites locals and visitors alike to enjoy the picturesque coastline and vibrant scenery. Interestingly, as the summer months unfold, wind speeds slightly increase again, hinting at nature's rhythm in this charming port city.

Average June Wind Speed in Otaru

The chart displays monthly wind speed patterns in Otaru, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.35.44.14.23.72.9 m/s3.03.33.34.05.15.4
Data source: Otaru June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Otaru Compares to Other Months

Weather in Otaru varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Otaru, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in June and January, notable differences emerge. June experiences a mild temperature range, with minimums around 6°C (44°F) and maximums reaching up to 24°C (75°F), contributing to an average of 14°C (58°F). The month sees considerable rainfall, totaling 112 mm (4.4 in) over approximately 12 days, while the humidity hovers at 87%. In contrast, January presents a starkly different picture with frigid temperatures, where minimums drop to -12°C (10°F) and maximums only reach 4°C (40°F), averaging -4°C (25°F). Though January has slightly less precipitation at 87 mm (3.4 in), it occurs over more days, averaging about 20 days, with a humidity level of 84%. For more detailed insights, you can visit Otaru weather in January.

June and February exhibit stark contrasts in weather conditions. In June, temperatures range from a minimum of 6°C (44°F) to a maximum of 24°C (75°F), with an average of 14°C (58°F). This month also sees about 112 mm (4.4 in) of precipitation over 12 days, accompanied by high humidity levels at 87%. In contrast, February experiences much colder temperatures, ranging from a minimum of -13°C (8°F) to a maximum of 6°C (44°F), and an average of -3°C (26°F). Although February has slightly less precipitation at 99 mm (3.9 in), it occurs over more days—22 in total—while humidity is relatively lower at 83%. The differences in temperature and precipitation patterns clearly highlight the seasonal shift between these two months. For more details, you can check Otaru weather in February.

In comparing the weather between June and March, one can clearly see the transition from the chill of early spring to the warmth of late spring. June features much milder temperatures, with a minimum of 6°C (44°F) and an average of 14°C (58°F), significantly warmer than March's frigid minimum of -7°C (19°F) and average of just 1°C (34°F). Additionally, June offers a higher maximum temperature of 24°C (75°F) compared to March's 12°C (54°F). Precipitation is also noteworthy, as June experiences slightly more rain (112 mm) over fewer days (12 days) than March, which receives 95 mm over 16 days. Humidity levels rise in June (87%) compared to March (81%), contributing to the lush greenery typical of the season. For more detailed weather insights, you can refer to Otaru weather in March.

When comparing the weather in June and April, June experiences significantly warmer temperatures, with a minimum of 6°C (44°F) and a maximum reaching up to 24°C (75°F), while April has a much cooler range with a minimum of -3°C (26°F) and a maximum of 17°C (63°F). June also sees an average temperature of 14°C (58°F), which is notably higher than April's average of 5°C (40°F). In terms of precipitation, June is wetter, receiving 112 mm (4.4 in) over approximately 12 days, compared to April's 76 mm (3.0 in) over 11 days. Humidity levels are higher in June at 87%, while April's is slightly lower at 81%. For more specific details about April weather, you can check Otaru weather in April.

In June, the weather shows a notable increase in temperature compared to May, with a minimum of 6°C (44°F) and an average of 14°C (58°F) compared to May's minimum of 3°C (38°F) and average of 11°C (51°F). However, June experiences slightly higher humidity at 87%, just above May's 86%. Precipitation is also greater in June, totaling 112 mm (4.4 inches) over 12 days, while May records 90 mm (3.6 inches) over 13 days. These changes suggest that while June is generally warmer, it also brings more rain compared to the previous month. For more detailed information, you can visit Otaru weather in May.

June and July exhibit notable differences in weather patterns. June features cooler temperatures, with a minimum of 6°C (44°F) and a maximum of 24°C (75°F), averaging around 14°C (58°F). In contrast, July sees a rising trend, with minimum temperatures of 9°C (49°F) and maximums reaching 28°C (82°F), leading to a higher average of 20°C (68°F). While June experiences slightly more precipitation at 112 mm (4.4 in) over 12 days, July brings in 101 mm (4.0 in) across the same number of days. Additionally, July's humidity is higher at 93%, compared to June's 87%. For more detailed insights on July's weather, check out Otaru weather in July.

In June, the weather features milder temperatures with a minimum of 6°C (44°F) and an average of 14°C (58°F), reaching a maximum of 24°C (75°F). This month experiences notable rainfall with 112 mm (4.4 in) over approximately 12 days and a humidity level of 87%. In contrast, August brings warmer temperatures, starting at a minimum of 14°C (58°F) and averaging 21°C (70°F), with highs reaching up to 29°C (85°F). However, it also sees increased rainfall, totaling 169 mm (6.7 in) across about 14 days, along with higher humidity at 95%. For more detailed insights into the summer weather in Otaru, check out Otaru weather in August.

June and September each present distinct weather patterns. In June, temperatures typically range from a minimum of 6°C (44°F) to a maximum of 24°C (75°F), with an average of 14°C (58°F). This month experiences significant rainfall, with a total of 112 mm (4.4 in) across about 12 days, and humidity remains high at 87%. Conversely, September sees a slightly warmer climate, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 26°C (80°F) and an average of 18°C (65°F). It also experiences a bit more rainfall at 117 mm (4.6 in) over approximately 14 days, while the humidity is slightly higher at 88%. For more detailed insights, check Otaru weather in September.

In June, the weather tends to be milder, with average temperatures ranging from a minimum of 6°C (44°F) to a maximum of 24°C (75°F). This month experiences significant precipitation, with around 112 mm (4.4 in) falling over 12 days, leading to a higher humidity level of 87%. In contrast, October marks the onset of cooler weather, with temperatures dropping slightly to a minimum of 4°C (39°F) and an average of 12°C (54°F), peaking at 22°C (71°F). Additionally, October sees increased rainfall, totaling 152 mm (6.0 in) over 17 days, accompanied by a lower humidity of 83%. For more specific insights into October's weather, you can check Otaru weather in October.

June and November present strikingly contrasting weather conditions. In June, temperatures range from a minimum of 6°C (44°F) to a maximum of 24°C (75°F), with an average of 14°C (58°F). The month is characterized by relatively high humidity at 87% and moderate precipitation of 112 mm (4.4 in) spread over 12 days. In comparison, November sees much colder temperatures, with a minimum of -5°C (23°F), an average of 5°C (42°F), and a maximum of 15°C (59°F). This month also experiences more precipitation, totaling 167 mm (6.6 in) over 22 days, although the humidity is lower at 79%. For more detailed insights into the weather during November, check out Otaru weather in November.

The weather in June and December presents a stark contrast, highlighting the seasonal shifts in Otaru. In June, temperatures range from a chilly minimum of 6°C (44°F) to a warm maximum of 24°C (75°F), with an average temperature of 14°C (58°F). The month experiences about 112 mm (4.4 in) of precipitation over 12 days, contributing to a high humidity level of 87%. In contrast, December is much colder, with temperatures plummeting to a minimum of -10°C (15°F) and a maximum of only 11°C (52°F), resulting in an average temperature of -2°C (29°F). This month sees a higher precipitation level at 147 mm (5.8 in) spread across 27 days, although the humidity is slightly lower at 80%. For more details about the weather conditions in December, check out Otaru weather in December.

Compare Otaru's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Otaru

As June unfolds in Otaru, the weather marks a distinct shift compared to other months, with warmer temperatures inviting a vibrant atmosphere. With maximums reaching around 24°C, this month stands out for its mild embrace, perfect for exploring the city. The average temperature around 14°C and the occasional cool breeze provide a comfortable balance amidst the higher humidity of 87%. However, it's not all sunshine, as 12 days of precipitation can add a refreshing touch to the lush landscape. This blend of warmth and rain contributes to the unique charm of Otaru's June, making it a delightful time for visitors. For further insights into how the climate shapes your experience, check out Otaru Climate.