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Best time to visit · Japan
For the most comfortable weather in Osaka, aim for April and November. November tops our comfort score at 79/100, with highs around 62°F (17°C) and 3.7 in (93 mm) of rain. March, May, October and December are good shoulder-season months. The toughest months are July & August, mainly because of rain.
Highs run from 46°F to 89°F across the year, and the yearly total is about 69.0 in (1753 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 46°F8°C | 49°F10°C | 56°F14°C | 66°F19°C | 75°F24°C | 81°F27°C | 87°F30°C | 89°F31°C | 82°F28°C | 72°F22°C | 62°F17°C | 51°F11°C |
| Avg low | 33°F1°C | 34°F1°C | 38°F3°C | 47°F8°C | 56°F14°C | 65°F18°C | 73°F23°C | 74°F24°C | 68°F20°C | 56°F14°C | 46°F8°C | 37°F3°C |
| Rain | 2.6 in66 mm | 3.1 in80 mm | 4.6 in116 mm | 5.3 in135 mm | 6.3 in159 mm | 8.4 in213 mm | 8.7 in220 mm | 7.0 in178 mm | 8.9 in225 mm | 7.6 in192 mm | 3.7 in93 mm | 3.0 in76 mm |
| Humidity | 84% | 82% | 80% | 78% | 79% | 83% | 85% | 84% | 84% | 84% | 84% | 84% |
| Cloud | 70% | 69% | 65% | 64% | 67% | 79% | 73% | 62% | 68% | 63% | 60% | 65% |
| Comfort | 54 | 57 | 66 | 77 | 67 | 53 | 39 | 45 | 51 | 71 | 79 | 62 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~264 m (866 ft) to Osaka's ~23 m (75 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 46–51°F (8–11°C), and nights reach 33°F (1°C). It's the driest season, with only about 8.7 in (222 mm) of rain, 13% of the year's total. December score well without being the very best (season average 58/100).
Temperatures climb through the season, from 56°F highs in March to 75°F by May. About 16.1 in (410 mm) of rain falls across these months, 23% of the year's total. Lows bottom out around 38°F (3°C). April is among the best-scoring months (season average 70/100).
The warmest stretch of the year, with highs of 81–89°F (27–31°C). It's the wettest season, with about 24.1 in (611 mm) of rain, 35% of the year's total. June – August feel humid, with humidity near 83%. Comfort scores bottom out in July & August; the season averages 46/100.
Temperatures slide from 82°F highs in September to 62°F by November. About 20.1 in (510 mm) of rain falls across these months, 29% of the year's total. September feels humid, with humidity near 84%. November is among the best-scoring months (season average 67/100).
By comfort score: 2 Great, 4 Good, 5 Fair and 1 Tough. Great months: April and November. Tap a month for its own guide.
For the most comfortable weather in Osaka, aim for April and November. November tops our comfort score at 79/100, with highs around 62°F (17°C) and 3.7 in (93 mm) of rain. March, May, October and December are good shoulder-season months. The toughest months are July & August, mainly because of rain.
September is the wettest month, averaging about 8.9 in (225 mm) of rain. January is the driest, with about 2.6 in (66 mm). The yearly total is around 69.0 in (1753 mm).
January is the coldest, with average lows of 33°F (1°C) and highs of 46°F (8°C). The warmest is August, with average highs of 89°F (31°C).
Yes: in June – August humidity averages 83% with warm temperatures, so it feels muggy. Summer highs peak around 89°F (31°C).
Not on average: even in January, the coldest month, lows average 33°F (1°C). Individual cold snaps can still dip lower.
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