Mito climate
Mito (Japan) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 15 °C58 °F, and about 1,479 mm58 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Mito climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 745 | 134 | 440 | 632.5 | 11 |
| Feb | 847 | 134 | 541 | 542.1 | 11 |
| Mar | 1253 | 438 | 846 | 973.8 | 4 |
| Apr | 1762 | 846 | 1254 | 1194.7 | 0 |
| May | 2170 | 1355 | 1763 | 1335.2 | 0 |
| Jun | 2475 | 1763 | 2069 | 1516.0 | 0 |
| Jul | 2781 | 2170 | 2475 | 1756.9 | 0 |
| Aug | 2984 | 2272 | 2678 | 1445.7 | 0 |
| Sep | 2578 | 2067 | 2272 | 1847.2 | 0 |
| Oct | 2069 | 1458 | 1763 | 2038.0 | 0 |
| Nov | 1560 | 948 | 1254 | 893.5 | 0 |
| Dec | 1050 | 438 | 744 | 662.6 | 2 |
| Year | 2984 | 134 | 1558 | 1,47958 | 28 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 65% | 2.7 | 9:56 |
| Feb | 77% | 69% | 3.3 | 10:49 |
| Mar | 76% | 67% | 4.1 | 11:52 |
| Apr | 78% | 68% | 4.8 | 13:05 |
| May | 81% | 71% | 5.1 | 14:05 |
| Jun | 85% | 80% | 4.8 | 14:37 |
| Jul | 86% | 79% | 4.7 | 14:24 |
| Aug | 85% | 69% | 4.8 | 13:32 |
| Sep | 85% | 74% | 3.8 | 12:21 |
| Oct | 83% | 73% | 3.0 | 11:11 |
| Nov | 81% | 68% | 2.5 | 10:11 |
| Dec | 80% | 66% | 2.3 | 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 Mito is like
The warmest month is August, with an average high of 29 °C84 °F and a low of 22 °C72 °F. The coldest is January, when highs average 7 °C45 °F and lows 1 °C34 °F. Seasons are strongly marked: the warmest month is on average 21.4 °C38.4 °F warmer than the coldest.
It is wet, with about 1,479 mm58 in of precipitation per year. The wettest three-month stretch is August–October, which brings 36% of the annual total. The wettest month is October (203 mm8.0 in), the driest is February (54 mm2.1 in).
Relative humidity ranges from 76% in March to 86% in July. The clearest skies (lowest average cloud amount, 65%) are typical of January. Average wind speed near the ground ranges from 5 km/h (3 mph) in July to 9 km/h (5 mph) in January. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.
A lasting snow cover is typical in January and February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 11 cm).
Best time to visit Mito
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June: average highs of 21 °C70 °F to 24 °C75 °F with 133 mm5.2 in to 151 mm6.0 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 7 °C45 °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 Mito
- Winter (December–February) — highs 745 to 10 °C50 °F, lows 134 to 4 °C38 °F, about 61 mm2.4 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1253 to 21 °C70 °F, lows 438 to 13 °C55 °F, about 116 mm4.6 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 29 °C84 °F, lows 1763 to 22 °C72 °F, about 157 mm6.2 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 1560 to 25 °C78 °F, lows 948 to 20 °C67 °F, about 158 mm6.2 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Mito compares
Compared with Utsunomiya, about 56 km to the northwest, Mito is on average 1.3 °C2.3 °F warmer and receives a similar amount of precipitation. The difference is largest in December (3 °C5.4 °F warmer).
Of the 111 places in Japan covered by World Climates, Mito is the 70th warmest by annual mean temperature and the 81st 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: Ulsan (South Korea, Cfa), Donghae City (South Korea, Cfa) and Geoje (South Korea, Cwa).
The same NASA POWER grid cell also contains Hitachi (pop. 174,508), Hitachi-Naka (pop. 156,581) and Katsuta (pop. 155,968). Their long-term averages in this dataset are essentially the same as for Mito, so they do not have separate pages.
Nearby places
- Tsukuba 42 km · 15 °C59 °F · 1,519 mm60 in
- Utsunomiya 56 km · 13 °C56 °F · 1,474 mm58 in
- Narita 64 km · 16 °C60 °F · 1,543 mm61 in
- Abiko 66 km · 15 °C59 °F · 1,519 mm60 in
- Koga 68 km · 15 °C59 °F · 1,519 mm60 in
- Nasushiobara 78 km · 12 °C54 °F · 1,405 mm55 in
- Saitama 87 km · 15 °C59 °F · 1,449 mm57 in
- Iwaki 87 km · 14 °C57 °F · 1,397 mm55 in
Frequently asked questions
What is the warmest month in Mito?
August is the warmest month in Mito, with an average high of 29 °C (84 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Mito?
January is the coldest month, with an average high of 7 °C (45 °F) and an average low of 1 °C (34 °F).
When does it rain the most in Mito?
October is the wettest month with about 203 mm (8.0 in) of precipitation; February is the driest with about 54 mm (2.1 in).
What is the best time to visit Mito?
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.
The grid cell’s average elevation is 97 m, while Mito lies at about 28 m. Temperatures on this page were therefore adjusted by +0.5 °C0.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.