Toyama climate
Toyama (Japan) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 15 °C59 °F, and about 1,810 mm71 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Toyama climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 541 | −130 | 235 | 1576.2 |
| Feb | 643 | −130 | 236 | 1084.3 |
| Mar | 1050 | 236 | 643 | 1214.8 |
| Apr | 1864 | 745 | 1355 | 1124.4 |
| May | 2476 | 1356 | 1966 | 1104.3 |
| Jun | 2882 | 1965 | 2374 | 1475.8 |
| Jul | 3188 | 2374 | 2781 | 2268.9 |
| Aug | 3289 | 2475 | 2882 | 1626.4 |
| Sep | 2882 | 2067 | 2475 | 1817.1 |
| Oct | 2271 | 1356 | 1763 | 1596.3 |
| Nov | 1559 | 745 | 1152 | 1435.6 |
| Dec | 847 | 236 | 541 | 1847.2 |
| Year | 3289 | −130 | 1559 | 1,81071 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 97% | 76% | 1.9 | 9:54 |
| Feb | 94% | 73% | 2.6 | 10:48 |
| Mar | 89% | 70% | 3.6 | 11:52 |
| Apr | 81% | 65% | 4.6 | 13:05 |
| May | 78% | 68% | 5.3 | 14:07 |
| Jun | 82% | 79% | 4.9 | 14:39 |
| Jul | 86% | 79% | 4.5 | 14:26 |
| Aug | 86% | 70% | 4.8 | 13:33 |
| Sep | 87% | 74% | 3.8 | 12:22 |
| Oct | 88% | 68% | 3.1 | 11:11 |
| Nov | 91% | 67% | 2.2 | 10:09 |
| Dec | 95% | 74% | 1.6 | 9:40 |
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 Toyama is like
The warmest month is August, with an average high of 32 °C89 °F and a low of 24 °C75 °F. The coldest is January, when highs average 5 °C41 °F and lows −1 °C30 °F. Seasons are strongly marked: the warmest month is on average 25.9 °C46.7 °F warmer than the coldest.
It is wet, with about 1,810 mm71 in of precipitation per year. The wettest three-month stretch is July–September, which brings 31% of the annual total. The wettest month is July (226 mm8.9 in), the driest is February (108 mm4.3 in).
Relative humidity ranges from 78% in May to 97% in January. The clearest skies (lowest average cloud amount, 65%) are typical of April. Average wind speed near the ground ranges from 4 km/h (2 mph) in August to 9 km/h (6 mph) in January. Daylight lasts from about 9.7 hours in December to 14.7 hours in June.
Best time to visit Toyama
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May: average highs of 24 °C76 °F to 24 °C76 °F with 110 mm4.3 in to 110 mm4.3 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 5 °C41 °F and very wet (157 mm6.2 in).
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 Toyama
- Winter (December–February) — highs 541 to 8 °C47 °F, lows −130 to 2 °C36 °F, about 150 mm5.9 in of precipitation a month. Pack a warm coat, layers and closed shoes, shoes with good grip, as frost is common and an umbrella or light rain jacket.
- Spring (March–May) — highs 1050 to 24 °C76 °F, lows 236 to 13 °C56 °F, about 114 mm4.5 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 2882 to 32 °C89 °F, lows 1965 to 24 °C75 °F, about 178 mm7.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1559 to 28 °C82 °F, lows 745 to 20 °C67 °F, about 161 mm6.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Toyama compares
Compared with Kanazawa, about 55 km to the west, Toyama has practically the same average temperature and receives 10% less precipitation (1,810 mm71 in vs 2,013 mm79 in). The difference is largest in January (0.6 °C1.1 °F cooler).
Of the 111 places in Japan covered by World Climates, Toyama is the 66th warmest by annual mean temperature and the 37th 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: Richmond (United States, Cfa), Virginia Beach (United States, Cfa) and Norfolk (United States, Cfa).
Nearby places
- Takaoka 19 km · 15 °C59 °F · 2,104 mm83 in
- Kanazawa 55 km · 15 °C59 °F · 2,013 mm79 in
- Komatsu 76 km · 16 °C60 °F · 2,100 mm83 in
- Matsumoto 85 km · 12 °C54 °F · 1,329 mm52 in
- Nagano 86 km · 12 °C54 °F · 1,462 mm58 in
- Jōetsu 103 km · 15 °C58 °F · 1,812 mm71 in
- Fukui-shi 114 km · 15 °C59 °F · 2,090 mm82 in
- Iida 142 km · 13 °C56 °F · 1,586 mm62 in
Frequently asked questions
What is the warmest month in Toyama?
August is the warmest month in Toyama, with an average high of 32 °C (89 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Toyama?
January is the coldest month, with an average high of 5 °C (41 °F) and an average low of -1 °C (30 °F).
When does it rain the most in Toyama?
July is the wettest month with about 226 mm (8.9 in) of precipitation; February is the driest with about 108 mm (4.3 in).
What is the best time to visit Toyama?
Judging by long-term averages, the most comfortable months are May.
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 1,099 m, while Toyama lies at about 11 m. Temperatures on this page were therefore adjusted by +7.1 °C12.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.