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Kasugai, Aichi Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Kasugai, Aichi?
Kasugai, Aichi gets 1472 mm of precipitation a year over about 99 rainy days. August is the warmest month (average high 33°C) and January the coldest (average low 1°C).
Humid subtropical climate
Kasugai, Aichi has hot summers and chilly winters. Daytime highs range from about 9°C in January to 33°C in August. September is usually the wettest month. The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 21°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 11° |
| Spring | Mar–May | 9° | 20° |
| Summer | Jun–Aug | 22° | 31° |
| Autumn | Sep–Nov | 14° | 23° |
How much rain does Kasugai get?
Kasugai gets 1472 mm of precipitation in an average year, spread over about 99 days with measurable rain. That is fewer rainy days than 79% of Japan.
September is the wettest month, with 217 mm. January is the driest, with 46 mm. July has the most rainy days, about 12.
The longest dry spell in the last five years lasted 25 days, to February 7, 2026.
From October 2025 to September 2026 Kasugai got 547 mm of rain, against a normal of 1472 mm for those months. September 2026 had the most, with 250 mm.
Kasugai weather by month
Kasugai weather in January
In January, Kasugai averages a high of 9°C and a low of 1°C. It gets 46 mm of precipitation over about 6 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The January record high is 18°C (2020) and the record low is -6°C (1970).
Kasugai weather in February
In February, Kasugai averages a high of 11°C and a low of 1°C. It gets 56 mm of precipitation over about 6 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The February record high is 23°C (2016) and the record low is -6°C (1977).
Kasugai weather in March
In March, Kasugai averages a high of 14°C and a low of 4°C. It gets 106 mm of precipitation over about 8 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The March record high is 25°C (2018) and the record low is -4°C (1977).
Kasugai weather in April
In April, Kasugai averages a high of 20°C and a low of 9°C. It gets 117 mm of precipitation over about 8 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The April record high is 31°C (2004) and the record low is 0°C (1972). April is one of the most comfortable months to visit.
Kasugai weather in May
In May, Kasugai averages a high of 25°C and a low of 14°C. It gets 135 mm of precipitation over about 9 rainy days. Estimated sunshine is 34% of daylight hours, derived from ERA5 cloud cover. The May record high is 34°C (2019) and the record low is 6°C (1972). May is one of the most comfortable months to visit.
Kasugai weather in June
In June, Kasugai averages a high of 28°C and a low of 19°C. It gets 180 mm of precipitation over about 11 rainy days. Estimated sunshine is 25% of daylight hours, derived from ERA5 cloud cover. The June record high is 38°C (2022) and the record low is 9°C (1991).
Kasugai weather in July
In July, Kasugai averages a high of 32°C and a low of 23°C. It gets 208 mm of precipitation over about 12 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The July record high is 39°C (2018) and the record low is 16°C (1976).
Kasugai weather in August
In August, Kasugai averages a high of 33°C and a low of 24°C. It gets 128 mm of precipitation over about 8 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The August record high is 41°C (2018) and the record low is 18°C (1981).
Kasugai weather in September
In September, Kasugai averages a high of 29°C and a low of 21°C. It gets 217 mm of precipitation over about 10 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The September record high is 38°C (2010) and the record low is 12°C (1976).
Kasugai weather in October
In October, Kasugai averages a high of 23°C and a low of 14°C. It gets 152 mm of precipitation over about 8 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The October record high is 32°C (2013) and the record low is 4°C (1983). October is one of the most comfortable months to visit.
Kasugai weather in November
In November, Kasugai averages a high of 17°C and a low of 8°C. It gets 74 mm of precipitation over about 6 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The November record high is 26°C (2009) and the record low is -1°C (1970). November is one of the most comfortable months to visit.
Kasugai weather in December
In December, Kasugai averages a high of 12°C and a low of 3°C. It gets 54 mm of precipitation over about 6 rainy days. Estimated sunshine is 59% of daylight hours, derived from ERA5 cloud cover. The December record high is 23°C (2015) and the record low is -6°C (1973).
Sunshine, humidity and wind in Kasugai
November is the sunniest month in Kasugai, with estimated sunshine of 60% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 25%. The annual cloud-cover estimate is 44% of daylight hours; it is not a measurement of sunshine duration. Kasugai is sunnier than 98% of Japan.
Humidity peaks in July at 78% and is lowest in February at 60%.
Kasugai has about 35 days a year above 32°C. Kasugai is hotter than 91% of Japan.
First and last freeze in Kasugai
The first fall freeze in Kasugai typically comes around December 19, and the last spring freeze around March 12. That leaves a frost-free growing season of about 282 days.
Kasugai weather records
These records cover NAGOYA during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Kasugai station is 41°C, on August 3, 2018. The coldest is -6°C, on February 27, 1981.
The wettest day in the available station history brought 341 mm of precipitation, on September 11, 2000.
41 all-time records have been set at the station since 1970.
The best time to visit Kasugai
The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 21°C.
Winter (December–February) is chilly, with average highs around 11°C and lows near 1°C.
Spring (March–May) is mild, with average highs around 20°C and lows near 9°C.
Summer (June–August) is hot, with average highs around 31°C and lows near 22°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 23°C and lows near 14°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 1° | 9° | 46 mm | 6 | 64% | 56% | 18° | -6° |
| February | 1° | 11° | 56 mm | 6 | 60% | 52% | 23° | -6° |
| March | 4° | 14° | 106 mm | 8 | 60% | 47% | 25° | -4° |
| April | 9° | 20° | 117 mm | 8 | 60% | 43% | 31° | 0° |
| May | 14° | 25° | 135 mm | 9 | 66% | 34% | 34° | 6° |
| June | 19° | 28° | 180 mm | 11 | 72% | 25% | 38° | 9° |
| July | 23° | 32° | 208 mm | 12 | 78% | 28% | 39° | 16° |
| August | 24° | 33° | 128 mm | 8 | 74% | 38% | 41° | 18° |
| September | 21° | 29° | 217 mm | 10 | 77% | 36% | 38° | 12° |
| October | 14° | 23° | 152 mm | 8 | 70% | 52% | 32° | 4° |
| November | 8° | 17° | 74 mm | 6 | 68% | 60% | 26° | -1° |
| December | 3° | 12° | 54 mm | 6 | 66% | 59% | 23° | -6° |
Station: NAGOYA, 9 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.
Kasugai climate questions
How much rain does Kasugai get?
Kasugai gets 1472 mm of precipitation in an average year, over about 99 rainy days.
What is the wettest month in Kasugai?
September is the wettest month in Kasugai, with 217 mm. January is the driest, with 46 mm.
How many rainy days does Kasugai have a year?
Kasugai has about 99 days with measurable rain in an average year. July has the most, about 12.
What is the hottest month in Kasugai?
August is the warmest month in Kasugai, with an average high of 33°C.
What is the coldest month in Kasugai?
January is the coldest month in Kasugai, with an average low of 1°C.
What is the record high temperature in Kasugai?
Within the available 1970–2026 station history, the record high at the Kasugai station is 41°C, set on August 3, 2018. The record low is -6°C, on February 27, 1981.
What is the sunniest month in Kasugai?
November is the sunniest month in Kasugai, with estimated sunshine of 60% of daylight hours from ERA5 cloud cover. June is the cloudiest.
When is the first frost in Kasugai?
The first fall freeze in Kasugai typically comes around December 19. The last spring freeze is around March 12.
What is the best time to visit Kasugai?
The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 21°C.