February Weather in Karatsu, Japan

Last updated: August 21, 2025

February in Karatsu, Japan offers a blend of cool temperatures and refreshing coastal breezes. With maximum highs reaching 19°C (67°F) and a chilly average of 8°C (47°F), residents experience a crisp winter month that can dip to a minimum of 0°C (31°F). This period sees 84 mm (3.3 in) of precipitation spread out over 11 days, making it one of the wetter months in the area. Additionally, the humidity levels hover around 69%, contributing to a brisk yet invigorating atmosphere perfect for exploring this charming coastal town.

February Temperature in Karatsu

In February, Karatsu, Japan, experiences a slight warming trend compared to the chill of January, with minimum temperatures rising to around 0°C (32°F) and maximums reaching 19°C (67°F). The average temperature hovers at 8°C (47°F), signaling a gradual transition towards the milder conditions of spring. This month marks the end of winter's grip, as the landscape begins to awaken from its cold slumber, making February a time of subtle change and anticipation. Visitors can enjoy the cool yet pleasant climate, perfect for sightseeing and outdoor activities, while locals embrace the shift towards warmer days ahead.

February Weather in Karatsu: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Karatsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Karatsu, February 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).
JanFebMarAprMayJunJulAugSepOctNovDec464753596672798277685950
Data source: Temperature data for Karatsu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

February Precipitation in Karatsu

February in Karatsu, Japan, sees a notable increase in precipitation, with 84 mm (3.3 in) falling over 11 days. This uptick compared to January's 69 mm (2.7 in) is indicative of the region's transitional climate as it approaches the wetter spring months. February often brings a mix of fleeting showers and more prolonged rainy spells, contributing to a lush landscape that hints at the blooming beauty of March and April. As the month progresses, the frequency and volume of rainfall continue to climb, foreshadowing the more substantial downpours characteristic of late spring and summer. This evolving pattern highlights the dynamic weather of Karatsu, where each month brings its own unique rhythm of moisture and renewal.

February Precipitation Trends in Karatsu

The chart displays monthly precipitation patterns in Karatsu, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Karatsu, February typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec69841361151531913242662101125381
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Karatsu

February in Karatsu, Japan, experiences a slight dip in humidity, averaging at 69%, down from January's 73%. This trend marks a temporary respite before the humidity levels begin to rise significantly with the onset of spring and summer. As we move into March, humidity returns to 71%, hinting at the upcoming humidity surge that characterizes the warmer months. Following this February drop, Karatsu's humidity escalates dramatically, peaking at a staggering 97% in July, highlighting the region's transition from the relatively comfortable winter conditions to the sultry, moisture-laden air of summer.

February Average Humidity in Karatsu

This chart illustrates the average monthly humidity levels in Karatsu, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Karatsu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%69%71%79%87%92%97%94%84%79%75%72%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Karatsu

In February, Karatsu, Japan experiences a noticeable increase in UV exposure, with the UV Index rising to 6, categorized as high. This shift indicates a reduced burn time of just 25 minutes, compared to 30 minutes in January when the Index was at a moderate level of 4. As the winter months give way to spring, residents and visitors alike should be mindful of their sun protection strategies, as the intensity of UV rays continues to escalate. In the following months, the Index will climb further, reaching a peak of 12 during the summer, emphasizing the importance of vigilance against UV radiation. For more detailed information, explore the Karatsu UV Index.

Maximum UV Index Levels in Karatsu for February

The chart shows the monthly maximum UV Index (UVI) for Karatsu in February, 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 February, the maximum UV index in Karatsu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121211764
Data source: Karatsu February 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.

February Sunshine in Karatsu

February in Karatsu, Japan, welcomes an invigorating increase in sunshine, with 230 hours basking the town in light—a significant rise from January's 178 hours. This upward trend continues as the days grow longer, culminating in March's 262 hours and further blossoming into the vibrant spring months that follow. As the seasons transition, it's clear that February acts as a pivotal turning point, paving the way for nearly consistent increases in sunshine through to May, where Karatsu enjoys 293 hours of sunlight. This month not only signifies more daylight but also heralds the arrival of warmer days, encouraging both residents and visitors to embrace the outdoors in this picturesque coastal town.

Monthly Sunshine Duration in Karatsu: February Highlighted

The February sunshine duration represents the total number of hours Karatsu experiences direct sunlight during the month of February, excluding cloudy or obstructed periods. This chart compares the sunshine duration of February with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec178h230h262h281h293h282h283h305h257h254h237h212h
Data source: Karatsu February Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Karatsu During February

February in Karatsu, Japan, brings a notable upswing in sunny weather, with a 44% chance of sunshine that month, making it one of the brighter periods of the year. This increase from January's 32% indicates a gradual transition towards more pleasant conditions as winter wanes. Following February, the chances of sun fluctuate slightly in March and April, settling down again in the summer months. The trend suggests that February serves as a promising gateway to the sunnier seasons ahead, inviting residents and visitors alike to embrace the moderate warmth and clearer skies. With winter's chill receding, it's an ideal time to enjoy the beauty of Karatsu under the sun.

Percentage of Sunny Days in February in Karatsu

The chart illustrates the percentage of sunny days in Karatsu throughout the year, with February 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 Karatsu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%44%37%41%33%27%21%29%33%60%48%37%
Data source: Karatsu February chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Karatsu in February

In February, Karatsu, Japan continues to enjoy a consistent 10 hours of daylight, mirroring the ample light of January. This stability hints at the gradual transition towards longer days as spring approaches. As the calendar flips to March, daylight begins to extend, marking the start of a noticeable increase that culminates in summer's peak, where daylight reaches an impressive 14 hours from June to July. The progression of longer days reflects a rhythmic shift in the seasons, where February stands as a bridge between the winter's shorter daylight and the vibrant energy of spring and summer ahead.

Average Daylight Hours in Karatsu for February

The chart illustrates the variation in daylight duration in Karatsu throughout the year, with February highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 58m11h 58m13h13h 53m14h 18m14h 5m13h 20m12h 20m11h 19m10h 25m9h 57m
Data source: Karatsu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

February Winds in Karatsu

In February, Karatsu, Japan, experiences a consistent average wind speed of 4.8 m/s (11 mph), mirroring the breezy conditions of January. This stability reflects a transitional period as winter begins to yield to the approaching spring. Notably, as we move into the subsequent months of March and April, the winds show a gradual decline, dropping to 4.1 m/s (9 mph) and 4.0 m/s (9 mph), respectively. This trend of softer breezes continues through late spring and into summer, reaching a low of 2.7 m/s (6 mph) in June. However, as the year progresses, the average wind speeds start to pick up again in the fall, notably rising to 4.3 m/s (10 mph) in November. Overall, February stands as a pivotal month, maintaining brisk winds that gently ease into the warmth of the seasons ahead.

Average February Wind Speed in Karatsu

The chart displays monthly wind speed patterns in Karatsu, with values for each month shown alongside February's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how February's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.84.8 m/s4.14.03.72.73.23.33.63.44.34.7
Data source: Karatsu February wind data, generated using information from the Copernicus Climate Change Service.

How February Weather in Karatsu Compares to Other Months

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

February generally experiences milder temperatures compared to January, with average highs reaching 19°C (67°F) against January's maximum of 18°C (64°F). The minimum temperature in February is 0°C (31°F), which is slightly warmer than January’s minimum of -1°C (31°F). Additionally, February sees more precipitation, totaling 84 mm (3.3 in) over 11 days, while January has 69 mm (2.7 in) spread across 9 days. Humidity levels are slightly lower in February at 69%, compared to January's 73%. For more specific details, you can check Karatsu weather in January.

February and March exhibit notable differences in weather patterns. February sees a minimum temperature of 0°C (31°F) with an average of 8°C (47°F), while March enjoys milder conditions, starting at a minimum of 5°C (41°F) and averaging 12°C (53°F). Both months experience similar maximum temperatures, with March peaking slightly higher at 20°C (68°F) compared to February's 19°C (67°F). However, March brings increased precipitation, totaling 136 mm (5.4 in) over 11 days, compared to February's 84 mm (3.3 in). Humidity is also slightly higher in March at 71%, compared to February's 69%. For more detailed insights on March weather in Karatsu, you can visit Karatsu weather in March.

February weather is typically colder, with average temperatures ranging from a minimum of 0°C (31°F) to a maximum of 19°C (67°F), and an overall average of 8°C (47°F). This month experiences considerable precipitation, totaling 84 mm (3.3 in) over about 11 days, coupled with a humidity level of 69%. In contrast, April brings warmer temperatures, with a minimum of 7°C (45°F), an average of 15°C (59°F), and a maximum of 24°C (75°F). While April sees an increase in precipitation to 115 mm (4.5 in), it occurs over just 9 days, resulting in a higher humidity of 79%. For those interested in specific weather patterns during this month, you can find more details here: Karatsu weather in April.

February and May showcase distinctly different weather patterns. In February, temperatures range from a chilly minimum of 0°C (31°F) to a pleasant maximum of 19°C (67°F), with an average of 8°C (47°F). This month experiences a moderate amount of precipitation, totaling 84 mm (3.3 in) over 11 days, and the humidity hovers at 69%. In contrast, May brings warmer weather, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (80°F), averaging 19°C (67°F). Although May sees increased rainfall of 153 mm (6.0 in) over the same 11 days, the humidity rises to 87%. For more details on what to expect, check out Karatsu weather in May.

When comparing the weather in February and June, there's a notable contrast in temperature and humidity. February typically experiences cooler temperatures, with minimums around 0°C (31°F) and maximums reaching 19°C (67°F), while June shows a significant warm-up, with minimums of 17°C (63°F) and maximums peaking at 29°C (84°F). In terms of precipitation, February sees around 84 mm (3.3 in) over 11 days, whereas June is much wetter, accumulating about 191 mm (7.5 in) across 13 days. Additionally, humidity levels rise in June to 91% compared to February's 69%, indicating a much more humid atmosphere. For a detailed overview of the weather in June, you can check Karatsu weather in June.

February and July present starkly contrasting weather conditions. In February, temperatures range from a chilly minimum of 0°C (31°F) to a pleasant maximum of 19°C (67°F), with an average of 8°C (47°F). The month sees moderate precipitation of 84 mm (3.3 in) spread over 11 days, coupled with a humidity level of 69%. In contrast, July experiences a much warmer climate, with temperatures ranging from a minimum of 20°C (68°F) to a peak of 33°C (91°F), averaging around 26°C (79°F). However, July is notably wetter, with a significant rainfall total of 323 mm (12.7 in) over 18 days, and a much higher humidity of 97%. This dramatic shift from the cool, damp February to the hot, humid July is indicative of the region's diverse climate. For more details on July weather, you can visit Karatsu weather in July.

February and August present distinctly contrasting weather conditions. In February, temperatures range from a chilly minimum of 0°C (31°F) to a mild maximum of 19°C (67°F), with an average of 8°C (47°F). The month experiences around 84 mm (3.3 in) of precipitation over 11 days, accompanied by a humidity level of 69%, creating a crisp and cool atmosphere.

In stark contrast, August boasts significantly warmer temperatures, with a minimum of 21°C (70°F) and a maximum reaching 33°C (92°F), averaging 28°C (83°F). August is also notably wetter, with total precipitation peaking at 266 mm (10.5 in) over 13 days and a higher humidity level of 94%, leading to a warm, humid environment. For more details, you can check Karatsu weather in August.

February and September present quite different weather patterns. In February, temperatures are cooler, ranging from a chilly minimum of 0°C (31°F) to a mild maximum of 19°C (67°F), with an average of 8°C (47°F). The month experiences relatively low precipitation, totaling 84 mm (3.3 in) over about 11 days, and humidity averages around 69%. In contrast, September heats up significantly, with temperatures ranging from a minimum of 19°C (66°F) to a warm maximum of 32°C (91°F), averaging 25°C (77°F). This month sees much heavier rainfall, accumulating 210 mm (8.3 in) over approximately 16 days and higher humidity at 84%. For a detailed look at September weather, you can visit Karatsu weather in September.

February and October present distinct contrasts in weather. In February, temperatures range from a chilly minimum of 0°C (31°F) to a mild maximum of 19°C (67°F), with an average of 8°C (47°F). The month sees a total precipitation of 84 mm (3.3 in) over 11 days and a relatively high humidity level of 69%. In contrast, October enjoys a much warmer climate, with temperatures ranging from a minimum of 13°C (56°F) to a pleasant maximum of 29°C (84°F) and an average of 20°C (69°F). Rainfall increases slightly, totaling 112 mm (4.4 in) over 10 days, accompanied by higher humidity at 79%. For more specific details on October weather, you can check Karatsu weather in October.

February and November present notable differences in weather patterns. While February sees cooler temperatures with a minimum of 0°C (31°F) and an average of 8°C (47°F), November offers significantly milder conditions, with temperatures ranging from a minimum of 7°C (45°F) to an average of 15°C (59°F). Rainfall is more frequent in February, totaling 84 mm (3.3 in) over approximately 11 days, compared to November's lighter precipitation of 53 mm (2.1 in) across 7 days. Humidity levels are slightly higher in November at 75%, compared to February's 69%, contributing to the overall different feel of these two months. For a closer look at November weather specifics, visit Karatsu weather in November.

In February, the weather is slightly cooler compared to December, with temperatures ranging from a minimum of 0°C (31°F) to a maximum of 19°C (67°F), averaging around 8°C (47°F). Precipitation is fairly consistent, with around 84 mm (3.3 in) spread over 11 days, and humidity levels are moderately high at 69%.

In contrast, December exhibits slightly milder temperatures, with a minimum of 1°C (35°F) and a maximum of 21°C (71°F), averaging at 10°C (50°F). Precipitation is somewhat lower at 81 mm (3.2 in) over just 9 days, and humidity is marginally higher at 72%. Overall, while both months feature similar levels of precipitation, February tends to be chillier and slightly wetter than December. For a more detailed look at December weather, check out Karatsu weather in December.

Compare Karatsu's Climate with Cities Worldwide

Conclusion: What to Expect From February Weather in Karatsu

February in Karatsu offers a refreshing contrast to the warmer months, with temperatures ranging from cool nights to mild days. While the average temperature hovers around a brisk 8°C (47°F), it occasionally peaks at a pleasant 19°C (67°F), inviting both locals and visitors to enjoy outdoor activities. Unlike the drier summer months, February sees significant rainfall, totaling 84 mm (3.3 in) over approximately 11 days, coupled with a humidity level of 69%, which adds a crisp feel to the air. This transitional month paves the way for spring, making it an excellent time to experience the charm of Karatsu as it shifts from winter’s embrace. For more detailed weather insights, check out Karatsu Climate.