Climate Overview
The climate in Iruma Ab is temperate. The average annual temperature is 16°C and approximately 1601mm of precipitation falls per year. Iruma Ab receives a notable amount of rainfall throughout the year, including during its driest month. Iruma Ab is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 0°C. Light snow can occur between January and November.
Temperature
Temperatures in Iruma Ab vary considerably across the year, with a 31°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 0°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.
Precipitation
Iruma Ab is a fairly wet location, receiving approximately 1601mm of precipitation annually, which averages out to around 133mm per month. The wettest month is July, averaging 219mm of rainfall. September and October also tend to see above-average precipitation. The driest month is December, with just 51mm. That's 168mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between January and November, totalling around 22cm annually. February is the snowiest month with approximately 8cm.
Wind
Iruma Ab is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Iruma Ab, which began on March 20, 2026. Iruma Ab is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 31°C, while the coldest stretch bottoms out in January near 0°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 6 to 24°C. Rainfall is heavy, totalling around 375mm across the season with a monthly average of 125mm. Winds are moderate at around 18km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 19 to 31°C. Rainfall is heavy, totalling around 565mm across the season with a monthly average of 188mm. Winds are moderate at around 15km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 8 to 27°C. Rainfall is heavy, totalling around 485mm across the season with a monthly average of 162mm. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 0 to 12°C. Precipitation is moderate at around 176mm for the season, averaging 59mm per month. Expect around 16cm of snow accumulation during this period. Winds are moderate at around 15km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Iruma Ab based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
