Weather in Osaka
Live weather and 7-day forecast for Osaka, Japan, followed by what to expect in each month of the year.
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7-day forecast
Forecast data from Open-Meteo
Climate in Osaka: month by month
Averaged over 2023–2025, the warmest month in Osaka is August, with highs around 35 °C (94 °F) and lows around 27 °C (80 °F); the coolest is January, with highs around 10 °C (49 °F) and lows around 1 °C (34 °F).
Osaka gets about 1,716 mm (68 in) of precipitation a year. The wettest month is June (333 mm over about 16 days) and the driest is December (34 mm).
| Month | Avg high | Avg low | Precipitation (mm) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | 10° | 1° | 39 | 6 | 10h 4m |
| February | 10° | 2° | 71 | 10 | 10h 56m |
| March | 14° | 6° | 124 | 12 | 11h 55m |
| April | 20° | 11° | 147 | 12 | 13h 2m |
| May | 23° | 15° | 246 | 11 | 13h 57m |
| June | 27° | 20° | 333 | 16 | 14h 28m |
| July | 33° | 25° | 174 | 13 | 14h 16m |
| August | 35° | 27° | 156 | 16 | 13h 29m |
| September | 32° | 24° | 148 | 14 | 12h 26m |
| October | 24° | 16° | 138 | 12 | 11h 22m |
| November | 18° | 9° | 106 | 8 | 10h 23m |
| December | 12° | 3° | 34 | 6 | 9h 51m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Osaka's coordinates (model elevation 3 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Osaka
What is the hottest month in Osaka?
August, with average highs of 35 °C (94 °F) and lows of 27 °C (80 °F) over 2023–2025. The coolest month is January, averaging 10 °C (49 °F) by day and 1 °C (34 °F) at night.
What is the rainiest month in Osaka?
June, with about 333 mm of precipitation on roughly 16 days. The driest month is December (34 mm), and the yearly total is around 1,716 mm.
When is the weather mildest in Osaka?
Going by the averages, April–May and October are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. June is the month most likely to bring rain.
More about Osaka
Weather in nearby cities
More for Osaka
More for Osaka: local time, sunrise and sunset, moon phases, and the exact time zone.
About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Osaka local time (Asia/Tokyo).