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Toyohashi, 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 Toyohashi, Aichi?
Toyohashi, Aichi gets 1369 mm of precipitation a year over about 82 rainy days. August is the warmest month (average high 32°C) and January the coldest (average low 2°C).
Humid subtropical climate
Toyohashi, Aichi has hot summers and chilly winters. Daytime highs range from about 9°C in January to 32°C in August. September is usually the wettest month. The most comfortable time to visit is typically April to June and October to November, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 3° | 11° |
| Spring | Mar–May | 9° | 19° |
| Summer | Jun–Aug | 22° | 29° |
| Autumn | Sep–Nov | 16° | 23° |
How much rain does Toyohashi get?
Toyohashi gets 1369 mm of precipitation in an average year, spread over about 82 days with measurable rain. That is fewer rainy days than 97% of Japan.
September is the wettest month, with 195 mm. December is the driest, with 51 mm. June has the most rainy days, about 10.
The longest dry spell in the last five years lasted 18 days, to January 12, 2023.
From October 2025 to September 2026 Toyohashi got 3196 mm of rain, against a normal of 1369 mm for those months. September 2026 had the most, with 2256 mm.
Toyohashi weather by month
Toyohashi weather in January
In January, Toyohashi averages a high of 9°C and a low of 2°C. It gets 53 mm of precipitation over about 4 rainy days. Estimated sunshine is 63% of daylight hours, derived from ERA5 cloud cover. The January record high is 17°C (1997) and the record low is -4°C (1997).
Toyohashi weather in February
In February, Toyohashi averages a high of 10°C and a low of 2°C. It gets 59 mm of precipitation over about 5 rainy days. Estimated sunshine is 57% of daylight hours, derived from ERA5 cloud cover. The February record high is 22°C (2024) and the record low is -4°C (1984).
Toyohashi weather in March
In March, Toyohashi averages a high of 14°C and a low of 5°C. It gets 104 mm of precipitation over about 7 rainy days. Estimated sunshine is 49% of daylight hours, derived from ERA5 cloud cover. The March record high is 24°C (2018) and the record low is -3°C (1977).
Toyohashi weather in April
In April, Toyohashi averages a high of 19°C and a low of 9°C. It gets 118 mm of precipitation over about 7 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The April record high is 28°C (2005) and the record low is 1°C (1985). April is one of the most comfortable months to visit.
Toyohashi weather in May
In May, Toyohashi averages a high of 23°C and a low of 14°C. It gets 133 mm of precipitation over about 8 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The May record high is 31°C (2019) and the record low is 6°C (1987). May is one of the most comfortable months to visit.
Toyohashi weather in June
In June, Toyohashi averages a high of 26°C and a low of 19°C. It gets 146 mm of precipitation over about 10 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The June record high is 36°C (2011) and the record low is 12°C (1978). June is one of the most comfortable months to visit.
Toyohashi weather in July
In July, Toyohashi averages a high of 30°C and a low of 23°C. It gets 146 mm of precipitation over about 9 rainy days. Estimated sunshine is 29% of daylight hours, derived from ERA5 cloud cover. The July record high is 38°C (2018) and the record low is 16°C (1976).
Toyohashi weather in August
In August, Toyohashi averages a high of 32°C and a low of 24°C. It gets 92 mm of precipitation over about 6 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The August record high is 38°C (1994) and the record low is 17°C (1981).
Toyohashi weather in September
In September, Toyohashi averages a high of 28°C and a low of 21°C. It gets 195 mm of precipitation over about 9 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The September record high is 36°C (2010) and the record low is 13°C (1980).
Toyohashi weather in October
In October, Toyohashi averages a high of 23°C and a low of 16°C. It gets 188 mm of precipitation over about 8 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The October record high is 30°C (2013) and the record low is 7°C (1976). October is one of the most comfortable months to visit.
Toyohashi weather in November
In November, Toyohashi averages a high of 17°C and a low of 9°C. It gets 86 mm of precipitation over about 5 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The November record high is 26°C (2024) and the record low is 2°C (1973). November is one of the most comfortable months to visit.
Toyohashi weather in December
In December, Toyohashi averages a high of 12°C and a low of 4°C. It gets 51 mm of precipitation over about 4 rainy days. Estimated sunshine is 70% of daylight hours, derived from ERA5 cloud cover. The December record high is 23°C (2015) and the record low is -2°C (1983).
Sunshine, humidity and wind in Toyohashi
December is the sunniest month in Toyohashi, with estimated sunshine of 70% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 24%. The annual cloud-cover estimate is 45% of daylight hours; it is not a measurement of sunshine duration. Toyohashi is sunnier than 99% of Japan.
Humidity peaks in September at 77% and is lowest in February at 58%.
Toyohashi has about 19 days a year above 32°C. Toyohashi is cooler than 52% of Japan.
Toyohashi weather records
These records cover IRAKO during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Toyohashi station is 38°C, on August 11, 2013. The coldest is -4°C, on January 22, 1997.
The wettest day in the available station history brought 588 mm of precipitation, on September 4, 2026.
41 all-time records have been set at the station since 1970.
The best time to visit Toyohashi
The most comfortable time to visit is typically April to June and October to November, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 11°C and lows near 3°C.
Spring (March–May) is mild, with average highs around 19°C and lows near 10°C.
Summer (June–August) is hot, with average highs around 29°C and lows near 22°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 23°C and lows near 15°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 2° | 9° | 53 mm | 4 | 60% | 63% | 17° | -4° |
| February | 2° | 10° | 59 mm | 5 | 58% | 57% | 22° | -4° |
| March | 5° | 14° | 104 mm | 7 | 60% | 49% | 24° | -3° |
| April | 9° | 19° | 118 mm | 7 | 63% | 41% | 28° | 1° |
| May | 14° | 23° | 133 mm | 8 | 68% | 33% | 31° | 6° |
| June | 19° | 26° | 146 mm | 10 | 75% | 24% | 36° | 12° |
| July | 23° | 30° | 146 mm | 9 | 76% | 29% | 38° | 16° |
| August | 24° | 32° | 92 mm | 6 | 73% | 36% | 38° | 17° |
| September | 21° | 28° | 195 mm | 9 | 77% | 35% | 36° | 13° |
| October | 16° | 23° | 188 mm | 8 | 70% | 48% | 30° | 7° |
| November | 9° | 17° | 86 mm | 5 | 66% | 60% | 26° | 2° |
| December | 4° | 12° | 51 mm | 4 | 60% | 70% | 23° | -2° |
Station: IRAKO, 30 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.
Toyohashi climate questions
How much rain does Toyohashi get?
Toyohashi gets 1369 mm of precipitation in an average year, over about 82 rainy days.
What is the wettest month in Toyohashi?
September is the wettest month in Toyohashi, with 195 mm. December is the driest, with 51 mm.
How many rainy days does Toyohashi have a year?
Toyohashi has about 82 days with measurable rain in an average year. June has the most, about 10.
What is the hottest month in Toyohashi?
August is the warmest month in Toyohashi, with an average high of 32°C.
What is the coldest month in Toyohashi?
January is the coldest month in Toyohashi, with an average low of 2°C.
What is the record high temperature in Toyohashi?
Within the available 1970–2026 station history, the record high at the Toyohashi station is 38°C, set on August 11, 2013. The record low is -4°C, on January 22, 1997.
What is the sunniest month in Toyohashi?
December is the sunniest month in Toyohashi, with estimated sunshine of 70% of daylight hours from ERA5 cloud cover. June is the cloudiest.
What is the best time to visit Toyohashi?
The most comfortable time to visit is typically April to June and October to November, when daytime highs sit near 22°C.