February Weather in Nagasaki, Japan

Last updated: August 21, 2025

February in Nagasaki, Japan offers a cool experience marked by an average temperature of 9°C (48°F), reaching a maximum of 17°C (63°F) on warmer days. While the month brings occasional chilly nights with a minimum temperature of 0°C (33°F), it also features relatively high humidity levels at 69%. Expect 106 mm (4.2 in) of precipitation spread over 10 days, making it a month characterized by a mix of sunny and rainy spells. Whether you're exploring the historic sites or enjoying the local cuisine, February's weather provides a unique backdrop for your Nagasaki adventure.

February Temperature in Nagasaki

In Nagasaki, Japan, February ushers in a slight warming trend as winter gradually gives way to spring. Temperatures in this charming city range from a minimum of 0°C (33°F) to a comfortable average of 9°C (48°F), peaking at around 17°C (63°F). This transition marks a subtle increase of about one degree in the average temperature compared to January, signaling the approach of milder days ahead. The lingering chill of early February is balanced by hints of warmth in the afternoons, making it an ideal time to explore the city's rich history and stunning landscapes before the more humid months arrive. As the weather begins to fluctuate, locals and visitors alike can appreciate the beauty of Nagasaki transitioning into its vibrant springtime.

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

The chart illustrates February temperature patterns in Nagasaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagasaki, 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).
JanFebMarAprMayJunJulAugSepOctNovDec474754596672798277696050
Data source: Temperature data for Nagasaki 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.

February Precipitation in Nagasaki

In February, Nagasaki experiences a notable increase in precipitation, with 106 mm (4.2 in) of rainfall over approximately 10 days. This marks a significant uptick from January's 61 mm (2.4 in), indicating the transition into a wetter season as winter starts to fade. The pattern continues into March, where precipitation rises even further, suggesting the approach of spring brings increased moisture. The relatively higher number of rainy days this month also hints at a gradual shift in weather patterns, setting the stage for the more intense rainfall that the city typically sees in the following months. Thus, February serves as a pivotal point in Nagasaki's precipitation cycle, bridging the milder winter conditions to the more humid spring and summer ahead.

February Precipitation Trends in Nagasaki

The chart displays monthly precipitation patterns in Nagasaki, 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 Nagasaki, February typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec611061571432292724423262251188192
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Nagasaki

In February, Nagasaki experiences a slight dip in humidity, with levels at 69%, down from January's 73%. This gradual decrease marks a transition towards the more humid months ahead, as the city prepares for the warm embrace of spring. Following February, March sees a small uptick to 71%, indicating the start of increased moisture in the air. As the seasons shift, humidity levels significantly rise, peaking in the summer months, where July reaches a staggering 97%. This trend highlights Nagasaki's transition from relatively mild winter conditions to the intense humidity that characterizes the region's summer, reminding residents and visitors alike of the atmospheric changes that come with each season.

February Average Humidity in Nagasaki

This chart illustrates the average monthly humidity levels in Nagasaki, 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 Nagasaki 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 Nagasaki

In February, Nagasaki experiences a noticeable uptick in the UV Index, reaching 6, which falls into the high exposure category. As winter wanes, the potential for skin damage increases, reducing the safe sun exposure time to just 25 minutes before the risk of burns escalates. This shift from January's moderate index of 4 indicates a trend toward stronger sun exposure as spring approaches. As the months progress, we see the UV Index rise significantly, peaking at an extreme 12 during the summer months. Therefore, while February remains manageable, staying informed about the UV Index is crucial for outdoor enthusiasts. For more details, visit Nagasaki UV Index.

Maximum UV Index Levels in Nagasaki for February

The chart shows the monthly maximum UV Index (UVI) for Nagasaki 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 Nagasaki typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121211864
Data source: Nagasaki 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 Nagasaki

February bathes Nagasaki in a delightful 226 hours of sunshine, marking a notable increase from the 167 hours in January. This upward trend in daylight hours not only hints at the arrival of spring but also sets the tone for the months ahead, as March continues the ascent with 261 hours of sunlight. April peaks further with 282 hours, showcasing the city's beautiful transformation as cherry blossoms start to bloom. As the seasons progress, sunlight continues to play a vital role in the vibrant atmosphere of Nagasaki, enhancing its picturesque landscapes and inviting outdoor adventures. This gradual rise in sunshine not only enriches the beauty of the city but also uplifts the spirits of its residents and visitors alike.

Monthly Sunshine Duration in Nagasaki: February Highlighted

The February sunshine duration represents the total number of hours Nagasaki 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.
JanFebMarAprMayJunJulAugSepOctNovDec167h226h261h282h279h260h271h302h261h260h233h190h
Data source: Nagasaki February Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nagasaki During February

In Nagasaki, Japan, February offers a refreshing 44% chance of sunny weather, marking a slight increase from January's 37%. As winter starts to wane, this boost in sunshine hints at the shifting seasons, gradually paving the way for the milder days of spring. Interestingly, February's sunshine likelihood stands out in contrast to the later months of the year, particularly when compared to the summer months of June and July, which dip to around 25% and 20% respectively. The overall trend reveals a dynamic weather pattern where early months like February and April enjoy a fair amount of sunshine, making them ideal for enjoying outdoor activities before the more humid summer takes hold. As such, visitors and locals alike can anticipate a pleasant taste of sunshine during this time.

Percentage of Sunny Days in February in Nagasaki

The chart illustrates the percentage of sunny days in Nagasaki 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 Nagasaki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%44%38%42%30%25%20%30%37%65%50%41%
Data source: Nagasaki February chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nagasaki in February

In February, Nagasaki experiences a meaningful transition as daylight extends to 11 hours, signaling the gradual emergence of spring. Following the relatively shorter days of January, this increase not only heralds longer afternoons but also reflects a broader trend of increasing daylight that continues through the subsequent months. The daylight hours will steadily grow, reaching their peak of 14 hours in June and July, before tapering back down in the fall. This gentle ascent in daylight not only enhances the beauty of the landscape but also invigorates the local culture as residents eagerly embrace the longer, sunlit days.

Average Daylight Hours in Nagasaki for February

The chart illustrates the variation in daylight duration in Nagasaki throughout the year, with February highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 14m11h11h 58m12h 59m13h 49m14h 15m14h 2m13h 18m12h 20m11h 20m10h 28m10h 1m
Data source: Nagasaki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

February Winds in Nagasaki

In February, Nagasaki experiences a gentle breeze with an average wind speed of 5.1 m/s (12 mph), slightly dipping from January's 5.2 m/s. As winter transitions to early spring, the early months showcase more robust winds, providing a contrast to the calmer summer months ahead. By March, the average wind drops further to 4.5 m/s (10 mph), indicating a gradual shift towards milder conditions. This trend of diminishing wind speeds continues through the spring and into summer, with April seeing a further decline to 4.2 m/s (9 mph), and June dropping to 2.7 m/s (6 mph), where the zephyrs of summer become noticeably softer. Thus, February in Nagasaki serves as a bridge between the more vigorous winter winds and the tranquil gales of summer, setting the stage for a serene seasonal transition.

Average February Wind Speed in Nagasaki

The chart displays monthly wind speed patterns in Nagasaki, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.25.1 m/s4.54.23.82.73.54.23.63.74.54.9
Data source: Nagasaki February wind data, generated using information from the Copernicus Climate Change Service.

How February Weather in Nagasaki Compares to Other Months

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

In comparing the weather of February and January, both months experience similar minimum temperatures, hovering around 0°C (32-33°F). However, February boasts a slightly warmer average temperature of 9°C (48°F) compared to January's 8°C (47°F). Notably, February also sees a higher maximum temperature of 17°C (63°F), while January reaches up to 18°C (65°F). Precipitation levels are significantly greater in February, with 106 mm (4.2 in) falling over 10 days, compared to January's 61 mm (2.4 in) over 8 days. Additionally, humidity remains relatively consistent, with February at 69% and January at 73%. For more details on January weather in Nagasaki, you can check Nagasaki weather in January.

February and March exhibit noticeable differences in weather patterns. In February, temperatures range from a minimum of 0°C (33°F) to a maximum of 17°C (63°F), with an average temperature of 9°C (48°F). The month sees about 106 mm (4.2 in) of precipitation over 10 days and a humidity level of 69%. In contrast, March brings milder weather, with minimum temperatures rising to 5°C (41°F) and maximums reaching 20°C (68°F), resulting in an average of 12°C (54°F). Precipitation increases to 157 mm (6.2 in) over 12 days, and humidity slightly rises to 71%. For more details on March weather in Nagasaki, you can visit Nagasaki weather in March.

February and April showcase a noticeable transition in weather patterns. In February, temperatures range from a chilly minimum of 0°C (33°F) to a mild maximum of 17°C (63°F), with an average temperature of 9°C (48°F). The month experiences about 106 mm (4.2 in) of precipitation over 10 days, accompanied by a relatively moderate humidity level of 69%. In contrast, April brings a significant warming trend, with temperatures rising to a minimum of 7°C (46°F) and peaking at 23°C (73°F), averaging around 15°C (60°F). While the total precipitation increases to 143 mm (5.6 in) over just 9 days, humidity also rises to 79%, indicating a more humid atmosphere. For more detailed insights into April weather, you can visit Nagasaki weather in April.

February and May present contrasting weather patterns. In February, temperatures are cooler, with a minimum of 0°C and a maximum of 17°C, while the average hovers around 9°C. This month also sees significant precipitation, with 106 mm over 10 days and a humidity level of 69%. In stark contrast, May enjoys much warmer temperatures, ranging from a minimum of 12°C to a maximum of 25°C, with an average of 19°C. However, May also brings higher precipitation at 229 mm over 11 days, accompanied by increased humidity at 87%. These differences highlight the transition from winter to spring, making May a much milder and wetter month. For more specifics on May weather, you can visit Nagasaki weather in May.

February and June present distinctly contrasting weather patterns. In February, temperatures range from a chilly minimum of 0°C (33°F) to a comfortable maximum of 17°C (63°F), with an average of 9°C (48°F). The month experiences moderate precipitation totaling 106 mm (4.2 in) over about 10 days, alongside a humidity level of 69%. In contrast, June boasts significantly warmer temperatures, with a minimum of 18°C (64°F) and a maximum of 27°C (81°F), resulting in an average of 22°C (73°F). This month is also much wetter, with precipitation soaring to 272 mm (10.7 in) across 14 days, and a higher humidity level of 91%. For a closer look at the weather specifics, you can visit Nagasaki weather in June.

February and July present strikingly different weather conditions. In February, temperatures range from a low of 0°C (33°F) to a comfortable high of 17°C (63°F), with an average temperature of 9°C (48°F). The month sees approximately 106 mm (4.2 in) of precipitation over about 10 days, accompanied by a humidity level of 69%.

In contrast, July experiences much warmer weather, with temperatures starting at a minimum of 21°C (70°F) and peaking at 32°C (89°F), averaging around 26°C (79°F). This summer month is significantly wetter, with total precipitation reaching 442 mm (17.4 in) across 18 days, and the humidity soaring to 97%. For more detailed insights, you can check out Nagasaki weather in July.

February and August present stark contrasts in weather conditions. In February, temperatures range from a chilly minimum of 0°C (33°F) to a milder maximum of 17°C (63°F), with an average temperature of 9°C (48°F). This month experiences about 106 mm (4.2 in) of precipitation over approximately 10 days, accompanied by a moderate humidity level of 69%. In contrast, August brings much warmer weather, with temperatures ranging from a comfortable minimum of 21°C (69°F) to a scorching maximum of 33°C (93°F), averaging around 28°C (82°F). This summer month sees significantly higher precipitation levels, totaling about 326 mm (12.8 in) spread across approximately 14 days, along with increased humidity at 94%. For more specific insights, you can check the Nagasaki weather in August.

February and September present vastly different weather experiences. In February, temperatures typically range from a chilly 0°C (33°F) at night to a mild 17°C (63°F) during the day, accompanied by about 106 mm (4.2 in) of precipitation spread over 10 days and a humidity level of 69%. In contrast, September boasts much warmer conditions, with nighttime lows of 19°C (66°F) and daytime highs reaching up to 32°C (90°F). The month experiences higher precipitation, totaling 225 mm (8.9 in) over 14 days, and increased humidity at 84%. For more detailed information, you can check Nagasaki weather in September.

February and October present a striking contrast in weather conditions. In February, temperatures range from a chilly minimum of 0°C (33°F) to a maximum of 17°C (63°F), with an average of 9°C (48°F). This month experiences a higher frequency of precipitation, totaling 106 mm (4.2 in) over approximately 10 days, coupled with a relatively comfortable humidity level of 69%. In contrast, October boasts warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 28°C (83°F), averaging 20°C (69°F). Though it receives slightly more precipitation at 117 mm (4.6 in) across 8 days, October’s humidity is 79%, contributing to a more tropical feel compared to the cooler February days. For a detailed glance at the specifics, check out Nagasaki weather in October.

February and November exhibit notable differences in weather patterns. In February, temperatures are cooler, with a minimum of 0°C (33°F) and a maximum of 17°C (63°F), while November sees milder conditions, ranging from a minimum of 8°C (46°F) to a maximum of 23°C (74°F). Precipitation levels are also distinct; February experiences more rainfall at 106 mm (4.2 in) over 10 days, compared to November's 81 mm (3.2 in) across 9 days. Additionally, February has a humidity level of 69%, whereas November is slightly more humid at 75%. For more detailed insights, you can check Nagasaki weather in November.

In comparing the weather patterns of February and December, February tends to be cooler, with average temperatures ranging from a minimum of 0°C (33°F) to a maximum of 17°C (63°F), while December sees slightly warmer averages, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 22°C (71°F). Precipitation in February is higher, totaling 106 mm (4.2 in) over about 10 days, compared to December's 92 mm (3.6 in) spread across 8 days. Both months exhibit similar humidity levels, with February at 69% and December slightly higher at 72%. To explore more about December weather in Nagasaki, you can visit Nagasaki weather in December.

Compare Nagasaki's Climate with Cities Worldwide

Conclusion: What to Expect From February Weather in Nagasaki

February in Nagasaki offers a unique blend of cool temperatures and moderate humidity, setting it apart from the warmer months of the year. While the days can reach a pleasant high of 17°C, evenings often dip to chillier lows, making it essential to layer up. With an average temperature hovering around 9°C, this month still experiences a fair bit of precipitation, with about ten days of rain, contributing to the lush landscapes characteristic of this region. The combination of these factors makes February a transitional month, as Nagasaki begins to shake off the colder winter chill and edge towards the mildness of spring. For more details on what weather to expect throughout the year, visit Nagasaki Climate.