February Weather in Koshimizu, Japan

Last updated: August 23, 2025

In Koshimizu, Japan, the average temperature in February hovers around -8°C (19°F), with extremes dipping as low as -25°C (-12°F) and reaching up to 6°C (42°F). Visitors can expect an average precipitation of 55 mm (2.2 in) spread over 11 days, while the air carries a notable average humidity of 83%.

February Temperature in Koshimizu

In February in Koshimizu, the average temperature is -8°C (19°F). Maximums can reach 6°C (42°F), while minimums can drop as low as -25°C (-12°F). Be sure to pack warm clothing if you plan to visit during this chilly time of year.

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

The chart illustrates February temperature patterns in Koshimizu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koshimizu, February typically has an average temperature of -8°C (19°F), with highs reaching up to 6°C (42°F) and lows dropping to around -25°C (-12°F).

Data source: Temperature data for Koshimizu generated using information from the Copernicus Climate Change Service.

February Precipitation in Koshimizu

In Koshimizu, in February, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

February Precipitation Trends in Koshimizu

The chart displays monthly precipitation patterns in Koshimizu, 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 Koshimizu, February typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

February Humidity in Koshimizu

In Koshimizu in February, humidity is 83%. With an average temperature of -8°C (19°F), this humidity feels like a biting chill that dampens the air and makes traveling uncomfortable, as the cold can seep into your bones, leaving you feeling even more frigid in the humid atmosphere.

February Average Humidity in Koshimizu

This chart illustrates the average monthly humidity levels in Koshimizu, 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 Koshimizu is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Koshimizu

In Koshimizu in February, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Koshimizu, you can check the information here.

Maximum UV Index Levels in Koshimizu for February

The chart shows the monthly maximum UV Index (UVI) for Koshimizu 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 Koshimizu typically reaches 3, which falls under the moderate exposure category.

Data source: Koshimizu 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.

How February Weather in Koshimizu Compares to Other Months

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

This table compares monthly weather conditions in Koshimizu, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	54 mm (2.1 inches)	84%	low
February Weather	-8°C (19°F)	55 mm (2.2 inches)	83%	moderate
March Weather	-2°C (29°F)	88 mm (3.5 inches)	83%	high
April Weather	4°C (39°F)	72 mm (2.8 inches)	83%	high
May Weather	10°C (50°F)	95 mm (3.7 inches)	86%	very high
June Weather	13°C (56°F)	96 mm (3.8 inches)	88%	very high
July Weather	18°C (64°F)	79 mm (3.1 inches)	93%	very high
August Weather	18°C (65°F)	129 mm (5.1 inches)	96%	very high
September Weather	16°C (61°F)	95 mm (3.7 inches)	89%	very high
October Weather	11°C (51°F)	159 mm (6.2 inches)	83%	moderate
November Weather	4°C (40°F)	96 mm (3.8 inches)	80%	moderate
December Weather	-3°C (27°F)	70 mm (2.8 inches)	79%	low