February Weather in Iwamizawa, Japan

Last updated: August 23, 2025

In February, the average temperature in Iwamizawa, Japan hovers around -5°C (24°F). Expect chilly conditions, with temperatures dipping as low as -19°C (-2°F) and occasionally peaking at 6°C (43°F). The region experiences 61 mm (2.4 in) of precipitation over approximately 17 days, accompanied by a high average humidity of 83%. Prepare for a wet and frosty month!

February Temperature in Iwamizawa

In February in Iwamizawa, the average temperature is -5°C (24°F). Maximums can reach 6°C (43°F), and minimums can be as low as -19°C (-2°F). Be prepared for chilly days and nights if you're planning to travel during this time.

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

The chart illustrates February temperature patterns in Iwamizawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iwamizawa, February typically has an average temperature of -5°C (24°F), with highs reaching up to 6°C (43°F) and lows dropping to around -19°C (-2°F).

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

February Precipitation in Iwamizawa

In Iwamizawa in February, the precipitation amount is 61 mm (2.4 in) over the course of 17 days.

February Precipitation Trends in Iwamizawa

The chart displays monthly precipitation patterns in Iwamizawa, 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 Iwamizawa, February typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

February Humidity in Iwamizawa

In Iwamizawa in February humidity is 83%. With an average temperature of -5°C (24°F), this humidity feels like a biting chill that penetrates your layers, making each breath crisp and brisk, which can be quite uncomfortable for traveling.

February Average Humidity in Iwamizawa

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

In Iwamizawa 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 Iwamizawa, you can check the information here.

Maximum UV Index Levels in Iwamizawa for February

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

Data source: Iwamizawa 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 Iwamizawa Compares to Other Months

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

This table compares monthly weather conditions in Iwamizawa, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	48 mm (1.9 inches)	84%	low
February Weather	-5°C (24°F)	61 mm (2.4 inches)	83%	moderate
March Weather	1°C (34°F)	75 mm (2.9 inches)	81%	high
April Weather	7°C (44°F)	72 mm (2.8 inches)	81%	high
May Weather	13°C (55°F)	89 mm (3.5 inches)	86%	very high
June Weather	16°C (61°F)	91 mm (3.6 inches)	87%	very high
July Weather	20°C (69°F)	84 mm (3.3 inches)	93%	very high
August Weather	21°C (70°F)	164 mm (6.5 inches)	95%	very high
September Weather	18°C (64°F)	85 mm (3.3 inches)	88%	very high
October Weather	11°C (53°F)	120 mm (4.7 inches)	83%	moderate
November Weather	5°C (41°F)	115 mm (4.5 inches)	79%	moderate
December Weather	-3°C (27°F)	84 mm (3.3 inches)	80%	low