Okazaki climate
Okazaki (Japan) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 16 °C60 °F, and about 1,741 mm69 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Okazaki climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 846 | 134 | 440 | 732.9 | 11 |
| Feb | 1049 | 135 | 642 | 803.1 | 10 |
| Mar | 1356 | 439 | 948 | 1184.6 | 3 |
| Apr | 1865 | 948 | 1456 | 1465.7 | 0 |
| May | 2373 | 1457 | 1865 | 1646.4 | 0 |
| Jun | 2679 | 1966 | 2272 | 1987.8 | 0 |
| Jul | 2985 | 2374 | 2679 | 2258.9 | 0 |
| Aug | 3187 | 2475 | 2781 | 1616.4 | 0 |
| Sep | 2882 | 2169 | 2475 | 2158.5 | 0 |
| Oct | 2272 | 1558 | 1865 | 1907.5 | 0 |
| Nov | 1762 | 948 | 1355 | 903.6 | 0 |
| Dec | 1151 | 338 | 745 | 813.2 | 2 |
| Year | 3187 | 134 | 1660 | 1,74169 | 26 |
“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 | 81% | 59% | 2.7 | 10:03 |
| Feb | 78% | 61% | 3.3 | 10:52 |
| Mar | 76% | 59% | 4.3 | 11:52 |
| Apr | 76% | 62% | 5.0 | 13:02 |
| May | 78% | 66% | 5.3 | 13:59 |
| Jun | 81% | 78% | 4.8 | 14:29 |
| Jul | 84% | 69% | 5.3 | 14:17 |
| Aug | 82% | 55% | 5.6 | 13:27 |
| Sep | 81% | 62% | 4.3 | 12:21 |
| Oct | 80% | 62% | 3.3 | 11:14 |
| Nov | 80% | 58% | 2.7 | 10:17 |
| Dec | 81% | 57% | 2.4 | 9:49 |
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 Okazaki is like
The warmest month is August, with an average high of 31 °C87 °F and a low of 24 °C75 °F. The coldest is January, when highs average 8 °C46 °F and lows 1 °C34 °F. Seasons are strongly marked: the warmest month is on average 22.9 °C41.2 °F warmer than the coldest.
It is wet, with about 1,741 mm69 in of precipitation per year. The wettest three-month stretch is July–September, which brings 35% of the annual total. The wettest month is July (225 mm8.9 in), the driest is January (73 mm2.9 in).
Relative humidity ranges from 76% in April to 84% in July. The clearest skies (lowest average cloud amount, 55%) are typical of August. Average wind speed near the ground ranges from 8 km/h (5 mph) in July to 13 km/h (8 mph) in January. Daylight lasts from about 9.8 hours in December to 14.5 hours in June.
Best time to visit Okazaki
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and November: average highs of 17 °C62 °F to 23 °C73 °F with 90 mm3.6 in to 164 mm6.4 in of precipitation per month.
The most challenging month is July, which is very wet (225 mm8.9 in) and humid (84% relative humidity).
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 Okazaki
- Winter (December–February) — highs 846 to 11 °C51 °F, lows 134 to 3 °C38 °F, about 78 mm3.1 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1356 to 23 °C73 °F, lows 439 to 14 °C57 °F, about 142 mm5.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
- Summer (June–August) — highs 2679 to 31 °C87 °F, lows 1966 to 24 °C75 °F, about 195 mm7.7 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 1762 to 28 °C82 °F, lows 948 to 21 °C69 °F, about 165 mm6.5 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Okazaki compares
Compared with Toyota, about 15 km to the north, Okazaki has practically the same average temperature and receives a similar amount of precipitation.
Of the 111 places in Japan covered by World Climates, Okazaki is the 44th warmest by annual mean temperature and the 47th 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: East Hampton (United States, Cfa), Norfolk (United States, Cfa) and Virginia Beach (United States, Cfa).
The same NASA POWER grid cell also contains Anjō (pop. 188,693) and Nishio (pop. 169,984). Their long-term averages in this dataset are essentially the same as for Okazaki, so they do not have separate pages.
Nearby places
- Toyota 15 km · 16 °C60 °F · 1,741 mm69 in
- Toyohashi 28 km · 16 °C61 °F · 1,776 mm70 in
- Nagoya 35 km · 16 °C61 °F · 1,741 mm69 in
- Tajimi 41 km · 14 °C58 °F · 1,803 mm71 in
- Yokkaichi 50 km · 16 °C61 °F · 1,741 mm69 in
- Hamamatsu 59 km · 18 °C64 °F · 1,970 mm78 in
- Tsu 64 km · 16 °C60 °F · 1,940 mm76 in
- Gifu 64 km · 15 °C59 °F · 1,803 mm71 in
Frequently asked questions
What is the warmest month in Okazaki?
August is the warmest month in Okazaki, with an average high of 31 °C (87 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Okazaki?
January is the coldest month, with an average high of 8 °C (46 °F) and an average low of 1 °C (34 °F).
When does it rain the most in Okazaki?
July is the wettest month with about 225 mm (8.9 in) of precipitation; January is the driest with about 73 mm (2.9 in).
What is the best time to visit Okazaki?
Judging by long-term averages, the most comfortable months are May and November.
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.