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Nagahama, Shiga Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Nagahama, Shiga?
Nagahama, Shiga gets 1438 mm of precipitation a year over about 129 rainy days. August is the warmest month (average high 32°C) and January the coldest (average low 1°C).
Humid subtropical climate
Nagahama, Shiga has hot summers and chilly winters. Daytime highs range from about 7°C in January to 32°C in August. July is usually the wettest month. The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 8° |
| Spring | Mar–May | 8° | 17° |
| Summer | Jun–Aug | 22° | 29° |
| Autumn | Sep–Nov | 13° | 22° |
How much rain does Nagahama get?
Nagahama gets 1438 mm of precipitation in an average year, spread over about 129 days with measurable rain. That is more rainy days than 66% of Japan.
July is the wettest month, with 195 mm. November is the driest, with 78 mm. January has the most rainy days, about 14.
The longest dry spell in the last five years lasted 16 days, to August 4, 2025.
From October 2025 to September 2026 Nagahama got 1264 mm of rain, against a normal of 1438 mm for those months. September 2026 had the most, with 612 mm.
Nagahama weather by month
Nagahama weather in January
In January, Nagahama averages a high of 7°C and a low of 1°C. It gets 103 mm of precipitation over about 14 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The January record high is 16°C (2020) and the record low is -6°C (1982).
Nagahama weather in February
In February, Nagahama averages a high of 8°C and a low of 1°C. It gets 92 mm of precipitation over about 13 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The February record high is 20°C (2026) and the record low is -7°C (1977).
Nagahama weather in March
In March, Nagahama averages a high of 12°C and a low of 3°C. It gets 101 mm of precipitation over about 12 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The March record high is 24°C (2025) and the record low is -6°C (1977).
Nagahama weather in April
In April, Nagahama averages a high of 17°C and a low of 7°C. It gets 107 mm of precipitation over about 10 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The April record high is 28°C (2018) and the record low is -1°C (1972). April is one of the most comfortable months to visit.
Nagahama weather in May
In May, Nagahama averages a high of 23°C and a low of 13°C. It gets 131 mm of precipitation over about 9 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The May record high is 32°C (2022) and the record low is 4°C (1972). May is one of the most comfortable months to visit.
Nagahama weather in June
In June, Nagahama averages a high of 26°C and a low of 18°C. It gets 157 mm of precipitation over about 11 rainy days. Estimated sunshine is 22% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (2022) and the record low is 8°C (1981). June is one of the most comfortable months to visit.
Nagahama weather in July
In July, Nagahama averages a high of 31°C and a low of 23°C. It gets 195 mm of precipitation over about 12 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The July record high is 38°C (2014) and the record low is 16°C (1982).
Nagahama weather in August
In August, Nagahama averages a high of 32°C and a low of 24°C. It gets 102 mm of precipitation over about 7 rainy days. Estimated sunshine is 29% of daylight hours, derived from ERA5 cloud cover. The August record high is 37°C (2023) and the record low is 16°C (1981).
Nagahama weather in September
In September, Nagahama averages a high of 28°C and a low of 20°C. It gets 155 mm of precipitation over about 10 rainy days. Estimated sunshine is 29% of daylight hours, derived from ERA5 cloud cover. The September record high is 35°C (2010) and the record low is 9°C (1976).
Nagahama weather in October
In October, Nagahama averages a high of 22°C and a low of 13°C. It gets 123 mm of precipitation over about 8 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The October record high is 32°C (2013) and the record low is 3°C (1983). October is one of the most comfortable months to visit.
Nagahama weather in November
In November, Nagahama averages a high of 16°C and a low of 7°C. It gets 78 mm of precipitation over about 9 rainy days. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. The November record high is 26°C (2020) and the record low is -1°C (1970).
Nagahama weather in December
In December, Nagahama averages a high of 10°C and a low of 3°C. It gets 93 mm of precipitation over about 14 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The December record high is 21°C (2015) and the record low is -7°C (1976).
Sunshine, humidity and wind in Nagahama
November is the sunniest month in Nagahama, with estimated sunshine of 50% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 22%. The annual cloud-cover estimate is 35% of daylight hours; it is not a measurement of sunshine duration. Nagahama is cloudier than 80% of Japan.
Humidity peaks in July at 81% and is lowest in April at 68%.
Nagahama has about 27 days a year above 32°C. Nagahama is hotter than 70% of Japan.
First and last freeze in Nagahama
The first fall freeze in Nagahama typically comes around December 16, and the last spring freeze around March 18. That leaves a frost-free growing season of about 273 days.
Nagahama weather records
These records cover HIKONE during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Nagahama station is 38°C, on July 26, 2014. The coldest is -7°C, on December 30, 1976.
The wettest day in the available station history brought 183 mm of precipitation, on September 3, 2026.
49 all-time records have been set at the station since 1970.
The best time to visit Nagahama
The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 8°C and lows near 1°C.
Spring (March–May) is mild, with average highs around 17°C and lows near 8°C.
Summer (June–August) is hot, with average highs around 30°C and lows near 22°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 22°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° | 7° | 103 mm | 14 | 78% | 36% | 16° | -6° |
| February | 1° | 8° | 92 mm | 13 | 74% | 37% | 20° | -7° |
| March | 3° | 12° | 101 mm | 12 | 70% | 38% | 24° | -6° |
| April | 7° | 17° | 107 mm | 10 | 68% | 38% | 28° | -1° |
| May | 13° | 23° | 131 mm | 9 | 72% | 32% | 32° | 4° |
| June | 18° | 26° | 157 mm | 11 | 78% | 22% | 37° | 8° |
| July | 23° | 31° | 195 mm | 12 | 81% | 24% | 38° | 16° |
| August | 24° | 32° | 102 mm | 7 | 80% | 29% | 37° | 16° |
| September | 20° | 28° | 155 mm | 10 | 80% | 29% | 35° | 9° |
| October | 13° | 22° | 123 mm | 8 | 77% | 44% | 32° | 3° |
| November | 7° | 16° | 78 mm | 9 | 76% | 50% | 26° | -1° |
| December | 3° | 10° | 93 mm | 14 | 79% | 38% | 21° | -7° |
Station: HIKONE, 11 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.
Nagahama climate questions
How much rain does Nagahama get?
Nagahama gets 1438 mm of precipitation in an average year, over about 129 rainy days.
What is the wettest month in Nagahama?
July is the wettest month in Nagahama, with 195 mm. November is the driest, with 78 mm.
How many rainy days does Nagahama have a year?
Nagahama has about 129 days with measurable rain in an average year. January has the most, about 14.
What is the hottest month in Nagahama?
August is the warmest month in Nagahama, with an average high of 32°C.
What is the coldest month in Nagahama?
January is the coldest month in Nagahama, with an average low of 1°C.
What is the record high temperature in Nagahama?
Within the available 1970–2026 station history, the record high at the Nagahama station is 38°C, set on July 26, 2014. The record low is -7°C, on December 30, 1976.
What is the sunniest month in Nagahama?
November is the sunniest month in Nagahama, with estimated sunshine of 50% of daylight hours from ERA5 cloud cover. June is the cloudiest.
When is the first frost in Nagahama?
The first fall freeze in Nagahama typically comes around December 16. The last spring freeze is around March 18.
What is the best time to visit Nagahama?
The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.