Komatsu climate
Komatsu (Japan) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 16 °C60 °F, and about 2,100 mm83 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Komatsu climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 846 | 541 | 643 | 2138.4 |
| Feb | 846 | 540 | 643 | 1365.4 |
| Mar | 1050 | 643 | 847 | 1425.6 |
| Apr | 1457 | 1051 | 1254 | 1325.2 |
| May | 1965 | 1559 | 1762 | 1254.9 |
| Jun | 2272 | 1967 | 2170 | 1475.8 |
| Jul | 2679 | 2475 | 2577 | 2299.0 |
| Aug | 2883 | 2678 | 2781 | 1586.2 |
| Sep | 2577 | 2373 | 2475 | 2118.3 |
| Oct | 2169 | 1864 | 1966 | 1696.6 |
| Nov | 1660 | 1355 | 1458 | 1797.1 |
| Dec | 1151 | 846 | 949 | 26010 |
| Year | 2883 | 540 | 1660 | 2,10083 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 91% | 1.6 | 9:56 |
| Feb | 76% | 86% | 2.4 | 10:48 |
| Mar | 75% | 80% | 3.6 | 11:52 |
| Apr | 76% | 75% | 4.6 | 13:05 |
| May | 80% | 75% | 5.2 | 14:05 |
| Jun | 83% | 82% | 5.0 | 14:38 |
| Jul | 86% | 81% | 4.7 | 14:24 |
| Aug | 82% | 72% | 5.0 | 13:32 |
| Sep | 78% | 77% | 3.9 | 12:21 |
| Oct | 75% | 73% | 3.1 | 11:11 |
| Nov | 75% | 78% | 2.1 | 10:10 |
| Dec | 78% | 88% | 1.4 | 9:41 |
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 Komatsu is like
The warmest month is August, with an average high of 28 °C83 °F and a low of 26 °C78 °F. The coldest is February, when highs average 8 °C46 °F and lows 5 °C40 °F. Seasons are strongly marked: the warmest month is on average 20.8 °C37.4 °F warmer than the coldest.
It is very wet, receiving about 2,100 mm83 in of precipitation per year. The wettest three-month stretch is November–January, which brings 31% of the annual total. The wettest month is December (260 mm10 in), the driest is May (125 mm4.9 in).
Relative humidity ranges from 75% in November to 86% in July. The clearest skies (lowest average cloud amount, 72%) are typical of August. Average wind speed near the ground ranges from 12 km/h (7 mph) in June to 22 km/h (14 mph) in December. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 15 cm).
Best time to visit Komatsu
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June: average highs of 19 °C65 °F to 22 °C72 °F with 125 mm4.9 in to 147 mm5.8 in of precipitation per month.
The most challenging month is December, which is cold, with average highs of 11 °C51 °F and very wet (260 mm10 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 Komatsu
- Winter (December–February) — highs 846 to 11 °C51 °F, lows 540 to 8 °C46 °F, about 203 mm8.0 in of precipitation a month. Pack a warm coat, layers and closed shoes and a good rain jacket or umbrella and quick-drying shoes.
- Spring (March–May) — highs 1050 to 19 °C65 °F, lows 643 to 15 °C59 °F, about 133 mm5.2 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 2272 to 28 °C83 °F, lows 1967 to 26 °C78 °F, about 178 mm7.0 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 1660 to 25 °C77 °F, lows 1355 to 23 °C73 °F, about 186 mm7.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Komatsu compares
Compared with Kanazawa, about 26 km to the northeast, Komatsu is on average 1 °C1.8 °F warmer and receives a similar amount of precipitation. The difference is largest in January (3.8 °C6.9 °F warmer).
Of the 111 places in Japan covered by World Climates, Komatsu is the 43rd warmest by annual mean temperature and the 10th 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: Sochi (Russia, Cfa), Rize (Turkey, Cfa) and Jeju City (South Korea, Cfa).
Nearby places
- Kanazawa 26 km · 15 °C59 °F · 2,013 mm79 in
- Fukui-shi 43 km · 15 °C59 °F · 2,090 mm82 in
- Takaoka 64 km · 15 °C59 °F · 2,104 mm83 in
- Toyama 76 km · 15 °C59 °F · 1,810 mm71 in
- Gifu 112 km · 15 °C59 °F · 1,803 mm71 in
- Nagahama 115 km · 15 °C58 °F · 1,865 mm73 in
- Hikone 129 km · 14 °C58 °F · 1,865 mm73 in
- Tajimi 136 km · 14 °C58 °F · 1,803 mm71 in
Frequently asked questions
What is the warmest month in Komatsu?
August is the warmest month in Komatsu, with an average high of 28 °C (83 °F) and an average low of 26 °C (78 °F).
What is the coldest month in Komatsu?
February is the coldest month, with an average high of 8 °C (46 °F) and an average low of 5 °C (40 °F).
When does it rain the most in Komatsu?
December is the wettest month with about 260 mm (10.2 in) of precipitation; May is the driest with about 125 mm (4.9 in).
What is the best time to visit Komatsu?
Judging by long-term averages, the most comfortable months are May and 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.