Hirosaki climate
Hirosaki (Japan) has a hot-summer humid continental climate (Köppen Dfa). The average temperature over the year is 10 °C51 °F, and about 1,478 mm58 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Hirosaki climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 032 | −524 | −228 | 1074.2 |
| Feb | 134 | −523 | −229 | 833.3 |
| Mar | 542 | −229 | 235 | 873.4 |
| Apr | 1355 | 337 | 846 | 923.6 |
| May | 1967 | 948 | 1457 | 1003.9 |
| Jun | 2475 | 1456 | 1966 | 973.8 |
| Jul | 2781 | 1865 | 2373 | 1636.4 |
| Aug | 2883 | 1967 | 2475 | 1706.7 |
| Sep | 2475 | 1559 | 1967 | 1475.8 |
| Oct | 1763 | 847 | 1355 | 1425.6 |
| Nov | 1050 | 337 | 643 | 1475.8 |
| Dec | 337 | −228 | 032 | 1445.7 |
| Year | 2883 | −523 | 1051 | 1,47858 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 93% | 87% | 1.3 | 9:34 |
| Feb | 91% | 84% | 2.0 | 10:36 |
| Mar | 86% | 78% | 3.2 | 11:49 |
| Apr | 81% | 71% | 4.4 | 13:14 |
| May | 80% | 70% | 5.0 | 14:25 |
| Jun | 81% | 73% | 5.1 | 15:04 |
| Jul | 85% | 78% | 4.5 | 14:48 |
| Aug | 84% | 71% | 4.4 | 13:46 |
| Sep | 84% | 69% | 3.8 | 12:24 |
| Oct | 84% | 67% | 2.8 | 11:02 |
| Nov | 87% | 76% | 1.7 | 9:51 |
| Dec | 91% | 84% | 1.2 | 9:17 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Hirosaki is like
The warmest month is August, with an average high of 28 °C83 °F and a low of 19 °C67 °F. The coldest is January, when highs average 0 °C32 °F and lows −5 °C24 °F. Seasons are strongly marked: the warmest month is on average 26.1 °C46.9 °F warmer than the coldest.
It is wet, with about 1,478 mm58 in of precipitation per year. The wettest three-month stretch is July–September, which brings 32% of the annual total. The wettest month is August (170 mm6.7 in), the driest is February (83 mm3.3 in).
Relative humidity ranges from 80% in May to 93% in January. The clearest skies (lowest average cloud amount, 67%) are typical of October. Average wind speed near the ground ranges from 2 km/h (1 mph) in July to 9 km/h (6 mph) in February. Daylight lasts from about 9.3 hours in December to 15.1 hours in June.
A lasting snow cover is typical in December–March, when the average snow depth in the reanalysis exceeds 10 cm (deepest in February, about 20 cm).
Best time to visit Hirosaki
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June: average highs of 24 °C75 °F to 24 °C75 °F with 97 mm3.8 in to 97 mm3.8 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 0 °C32 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Hirosaki
- Winter (December–February) — highs 032 to 3 °C37 °F, lows −523 to −2 °C28 °F, about 111 mm4.4 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots, shoes with good grip, as frost is common and an umbrella or light rain jacket.
- Spring (March–May) — highs 542 to 19 °C67 °F, lows −229 to 9 °C48 °F, about 93 mm3.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
- Summer (June–August) — highs 2475 to 28 °C83 °F, lows 1456 to 19 °C67 °F, about 143 mm5.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1050 to 24 °C75 °F, lows 337 to 15 °C59 °F, about 145 mm5.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
How Hirosaki compares
Compared with Aomori, about 33 km to the northeast, Hirosaki is on average 0.4 °C0.8 °F cooler and receives a similar amount of precipitation. The difference is largest in January (1.9 °C3.4 °F cooler).
Of the 111 places in Japan covered by World Climates, Hirosaki is the 103rd warmest by annual mean temperature and the 82nd wettest by annual precipitation. See all of them on the Japan climate page.
Places in other countries with the most similar temperature and rainfall pattern: Providence (United States, Dfa), Waterbury (United States, Dfa) and Boston (United States, Dfa).
Nearby places
- Aomori 33 km · 11 °C51 °F · 1,412 mm56 in
- Hachinohe 87 km · 10 °C51 °F · 1,267 mm50 in
- Akita 102 km · 12 °C54 °F · 1,596 mm63 in
- Morioka 115 km · 10 °C50 °F · 1,384 mm54 in
- Hakodate 133 km · 10 °C49 °F · 1,202 mm47 in
- Oshu 172 km · 11 °C52 °F · 1,411 mm56 in
- Sakata 194 km · 12 °C54 °F · 1,767 mm70 in
- Ichinoseki 195 km · 11 °C52 °F · 1,411 mm56 in
Frequently asked questions
What is the warmest month in Hirosaki?
August is the warmest month in Hirosaki, with an average high of 28 °C (83 °F) and an average low of 19 °C (67 °F).
What is the coldest month in Hirosaki?
January is the coldest month, with an average high of 0 °C (32 °F) and an average low of -5 °C (24 °F).
When does it rain the most in Hirosaki?
August is the wettest month with about 170 mm (6.7 in) of precipitation; February is the driest with about 83 mm (3.3 in).
What is the best time to visit Hirosaki?
Judging by long-term averages, the most comfortable months are June.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 300 m, while Hirosaki lies at about 45 m. Temperatures on this page were therefore adjusted by +1.7 °C3 °F using the standard lapse rate of 6.5 °C per 1,000 m.