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Asahikawa, Hokkaido Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Asahikawa, Hokkaido?
Asahikawa, Hokkaido gets 1084 mm of precipitation a year over about 180 rainy days. July is the warmest month (average high 26°C) and January the coldest (average low -13°C).
Humid continental climate
Asahikawa, Hokkaido has warm summers and cold winters. Daytime highs range from about -3°C in January to 26°C in August. August is usually the wettest month. The most comfortable time to visit is typically May to July and September, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -11° | -2° |
| Spring | Mar–May | -1° | 11° |
| Summer | Jun–Aug | 14° | 25° |
| Autumn | Sep–Nov | 4° | 14° |
How much rain does Asahikawa get?
Asahikawa gets 1084 mm of precipitation in an average year, spread over about 180 days with measurable rain. That is more rainy days than 99% of Japan.
August is the wettest month, with 149 mm. April is the driest, with 53 mm. December has the most rainy days, about 24.
The longest dry spell in the last five years lasted 15 days, to April 24, 2024.
From October 2025 to September 2026 Asahikawa got 1614 mm of rain, against a normal of 1084 mm for those months. July 2026 had the most, with 692 mm.
Asahikawa weather by month
Asahikawa weather in January
In January, Asahikawa averages a high of -3°C and a low of -13°C. It gets 70 mm of precipitation over about 22 rainy days. Estimated sunshine is 25% of daylight hours, derived from ERA5 cloud cover. The January record high is 7°C (1983) and the record low is -29°C (1977).
Asahikawa weather in February
In February, Asahikawa averages a high of -2°C and a low of -12°C. It gets 58 mm of precipitation over about 19 rainy days. Estimated sunshine is 27% of daylight hours, derived from ERA5 cloud cover. The February record high is 12°C (2010) and the record low is -29°C (1978).
Asahikawa weather in March
In March, Asahikawa averages a high of 3°C and a low of -8°C. It gets 54 mm of precipitation over about 17 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The March record high is 17°C (2018) and the record low is -23°C (1986).
Asahikawa weather in April
In April, Asahikawa averages a high of 11°C and a low of -1°C. It gets 53 mm of precipitation over about 12 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The April record high is 29°C (1998) and the record low is -12°C (1987).
Asahikawa weather in May
In May, Asahikawa averages a high of 19°C and a low of 6°C. It gets 61 mm of precipitation over about 10 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The May record high is 34°C (2019) and the record low is -2°C (2001). May is one of the most comfortable months to visit.
Asahikawa weather in June
In June, Asahikawa averages a high of 23°C and a low of 12°C. It gets 70 mm of precipitation over about 10 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The June record high is 34°C (2010) and the record low is 2°C (1978). June is one of the most comfortable months to visit.
Asahikawa weather in July
In July, Asahikawa averages a high of 26°C and a low of 16°C. It gets 119 mm of precipitation over about 10 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The July record high is 34°C (1978) and the record low is 7°C (1976). July is one of the most comfortable months to visit.
Asahikawa weather in August
In August, Asahikawa averages a high of 26°C and a low of 17°C. It gets 149 mm of precipitation over about 11 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The August record high is 36°C (1989) and the record low is 7°C (1971).
Asahikawa weather in September
In September, Asahikawa averages a high of 22°C and a low of 11°C. It gets 125 mm of precipitation over about 12 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (2019) and the record low is 2°C (1977). September is one of the most comfortable months to visit.
Asahikawa weather in October
In October, Asahikawa averages a high of 14°C and a low of 4°C. It gets 100 mm of precipitation over about 15 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The October record high is 26°C (2019) and the record low is -4°C (2006).
Asahikawa weather in November
In November, Asahikawa averages a high of 6°C and a low of -2°C. It gets 117 mm of precipitation over about 20 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The November record high is 21°C (2003) and the record low is -16°C (1984).
Asahikawa weather in December
In December, Asahikawa averages a high of -1°C and a low of -9°C. It gets 108 mm of precipitation over about 24 rainy days. Estimated sunshine is 27% of daylight hours, derived from ERA5 cloud cover. The December record high is 14°C (1989) and the record low is -24°C (2012).
Sunshine, humidity and wind in Asahikawa
April is the sunniest month in Asahikawa, with estimated sunshine of 39% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 25%. The annual cloud-cover estimate is 31% of daylight hours; it is not a measurement of sunshine duration. Asahikawa is cloudier than 95% of Japan.
Humidity peaks in August at 81% and is lowest in April at 62%.
Asahikawa has about 4 days a year above 32°C. Asahikawa is cooler than 83% of Japan.
First and last freeze in Asahikawa
The first fall freeze in Asahikawa typically comes around October 20, and the last spring freeze around May 2. That leaves a frost-free growing season of about 171 days.
Asahikawa weather records
These records cover ASAHIKAWA during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Asahikawa station is 36°C, on August 7, 1989. The coldest is -29°C, on January 29, 1977.
The wettest day in the available station history brought 253 mm of precipitation, on September 3, 2026.
51 all-time records have been set at the station since 1970.
The best time to visit Asahikawa
The most comfortable time to visit is typically May to July and September, when daytime highs sit near 22°C.
Winter (December–February) is cold, with average highs around -2°C and lows near -11°C.
Spring (March–May) is chilly, with average highs around 11°C and lows near -1°C.
Summer (June–August) is warm, with average highs around 25°C and lows near 15°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 14°C and lows near 4°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -13° | -3° | 70 mm | 22 | 79% | 25% | 7° | -29° |
| February | -12° | -2° | 58 mm | 19 | 76% | 27% | 12° | -29° |
| March | -8° | 3° | 54 mm | 17 | 69% | 36% | 17° | -23° |
| April | -1° | 11° | 53 mm | 12 | 62% | 39% | 29° | -12° |
| May | 6° | 19° | 61 mm | 10 | 68% | 33% | 34° | -2° |
| June | 12° | 23° | 70 mm | 10 | 76% | 28% | 34° | 2° |
| July | 16° | 26° | 119 mm | 10 | 80% | 30% | 34° | 7° |
| August | 17° | 26° | 149 mm | 11 | 81% | 28% | 36° | 7° |
| September | 11° | 22° | 125 mm | 12 | 78% | 35% | 33° | 2° |
| October | 4° | 14° | 100 mm | 15 | 78% | 37% | 26° | -4° |
| November | -2° | 6° | 117 mm | 20 | 78% | 30% | 21° | -16° |
| December | -9° | -1° | 108 mm | 24 | 80% | 27% | 14° | -24° |
Station: ASAHIKAWA, 0 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Asahikawa climate questions
How much rain does Asahikawa get?
Asahikawa gets 1084 mm of precipitation in an average year, over about 180 rainy days.
What is the wettest month in Asahikawa?
August is the wettest month in Asahikawa, with 149 mm. April is the driest, with 53 mm.
How many rainy days does Asahikawa have a year?
Asahikawa has about 180 days with measurable rain in an average year. December has the most, about 24.
What is the hottest month in Asahikawa?
July is the warmest month in Asahikawa, with an average high of 26°C.
What is the coldest month in Asahikawa?
January is the coldest month in Asahikawa, with an average low of -13°C.
What is the record high temperature in Asahikawa?
Within the available 1970–2026 station history, the record high at the Asahikawa station is 36°C, set on August 7, 1989. The record low is -29°C, on January 29, 1977.
What is the sunniest month in Asahikawa?
April is the sunniest month in Asahikawa, with estimated sunshine of 39% of daylight hours from ERA5 cloud cover. January is the cloudiest.
When is the first frost in Asahikawa?
The first fall freeze in Asahikawa typically comes around October 20. The last spring freeze is around May 2.
What is the best time to visit Asahikawa?
The most comfortable time to visit is typically May to July and September, when daytime highs sit near 22°C.