Uruma climate
Uruma (Japan) has a tropical rainforest climate (Köppen Af). The average temperature over the year is 23 °C74 °F, and about 1,713 mm67 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Uruma climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1966 | 1762 | 1864 | 682.7 |
| Feb | 1967 | 1763 | 1865 | 622.4 |
| Mar | 2069 | 1864 | 1967 | 913.6 |
| Apr | 2272 | 2068 | 2170 | 1435.6 |
| May | 2577 | 2373 | 2475 | 2289.0 |
| Jun | 2781 | 2679 | 2780 | 30912 |
| Jul | 2985 | 2882 | 2983 | 1385.4 |
| Aug | 3085 | 2883 | 2984 | 1736.8 |
| Sep | 2984 | 2781 | 2882 | 1957.7 |
| Oct | 2780 | 2577 | 2678 | 1405.5 |
| Nov | 2475 | 2272 | 2373 | 873.4 |
| Dec | 2170 | 1966 | 2068 | 783.1 |
| Year | 3085 | 1762 | 2374 | 1,71367 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 75% | 85% | 2.3 | 10:39 |
| Feb | 76% | 82% | 2.9 | 11:14 |
| Mar | 76% | 81% | 3.7 | 11:56 |
| Apr | 79% | 82% | 4.4 | 12:45 |
| May | 84% | 80% | 4.8 | 13:26 |
| Jun | 88% | 79% | 5.3 | 13:47 |
| Jul | 84% | 59% | 6.4 | 13:38 |
| Aug | 82% | 59% | 5.9 | 13:04 |
| Sep | 80% | 63% | 5.1 | 12:16 |
| Oct | 77% | 67% | 4.0 | 11:29 |
| Nov | 76% | 78% | 2.9 | 10:49 |
| Dec | 74% | 84% | 2.3 | 10:30 |
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 Uruma is like
The warmest month is August, with an average high of 30 °C85 °F and a low of 28 °C83 °F. The coldest is January, when highs average 19 °C66 °F and lows 17 °C62 °F. There is a clear seasonal cycle, with 10.9 °C19.5 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,713 mm67 in of precipitation per year. The wettest three-month stretch is April–June, which brings 40% of the annual total. The wettest month is June (309 mm12 in), the driest is February (62 mm2.4 in).
Relative humidity ranges from 74% in December to 88% in June. The clearest skies (lowest average cloud amount, 59%) are typical of August. Average wind speed near the ground ranges from 16 km/h (10 mph) in May to 23 km/h (14 mph) in December. Daylight lasts from about 10.5 hours in December to 13.8 hours in June.
Best time to visit Uruma
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 19 °C66 °F to 24 °C75 °F with 62 mm2.4 in to 91 mm3.6 in of precipitation per month.
The most challenging month is June, which is very wet (309 mm12 in) and humid (88% 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 Uruma
- Winter (December–February) — highs 1966 to 21 °C70 °F, lows 1762 to 19 °C66 °F, about 69 mm2.7 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
- Spring (March–May) — highs 2069 to 25 °C77 °F, lows 1864 to 23 °C73 °F, about 154 mm6.1 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 2781 to 30 °C85 °F, lows 2679 to 28 °C83 °F, about 207 mm8.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 2475 to 29 °C84 °F, lows 2272 to 27 °C81 °F, about 141 mm5.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
How Uruma compares
Compared with Okinawa, about 7 km to the southwest, Uruma is on average 0.5 °C0.9 °F warmer and receives a similar amount of precipitation. The difference is largest in September (0.7 °C1.2 °F warmer).
Of the 111 places in Japan covered by World Climates, Uruma is the 2nd warmest by annual mean temperature and the 50th 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: Keelung (Taiwan, Cfa), Toufen (Taiwan, Cfa) and Palm Bay (United States, Cfa).
Nearby places
- Okinawa 7 km · 23 °C73 °F · 1,691 mm67 in
- Naha 26 km · 24 °C75 °F · 1,580 mm62 in
- Keelung 628 km · 23 °C74 °F · 1,946 mm77 in
- Kagoshima 634 km · 19 °C66 °F · 2,612 mm103 in
- Taipei 651 km · 23 °C73 °F · 1,916 mm75 in
- Miyakonojō 672 km · 18 °C64 °F · 2,642 mm104 in
- Taoyuan 675 km · 22 °C72 °F · 1,916 mm75 in
- Taizhou 683 km · 18 °C65 °F · 1,547 mm61 in
Frequently asked questions
What is the warmest month in Uruma?
August is the warmest month in Uruma, with an average high of 30 °C (85 °F) and an average low of 28 °C (83 °F).
What is the coldest month in Uruma?
January is the coldest month, with an average high of 19 °C (66 °F) and an average low of 17 °C (62 °F).
When does it rain the most in Uruma?
June is the wettest month with about 309 mm (12.2 in) of precipitation; February is the driest with about 62 mm (2.4 in).
What is the best time to visit Uruma?
Judging by long-term averages, the most comfortable months are November–March.
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.