Okayama weather in May
May is one of the best months to visit Okayama: highs of 23°C (73°F) and about 132 mm (5.2 in) of rain on average. Nights average 14°C (56°F) and cloud cover 67% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 5th warmest. Compared with April, it is warmer and wetter; June brings highs of 26°C (79°F) and 195 mm (7.7 in) of rain.
Is May a good time to visit Okayama?
best month Weather score 65/100.
Yes. May is one of the best months for weather in Okayama.
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Does it rain a lot in Okayama in May?
Some rain is normal: about 132 mm (5.2 in) falls in an average May. It is the 5th wettest month of the year.
How warm is Okayama in May?
Days average 23°C (73°F) and nights 14°C (56°F).
Okayama weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 8°C (46°F) | 1°C (34°F) | 54 mm | 72% | least pleasant |
| February | 10°C (49°F) | 2°C (35°F) | 68 mm | 71% | least pleasant |
| March | 13°C (56°F) | 4°C (39°F) | 96 mm | 65% | fair |
| April | 18°C (65°F) | 9°C (47°F) | 106 mm | 64% | best |
| May | 23°C (73°F) | 14°C (56°F) | 132 mm | 67% | best |
| June | 26°C (79°F) | 18°C (65°F) | 195 mm | 79% | fair |
| July | 29°C (85°F) | 23°C (73°F) | 219 mm | 72% | fair |
| August | 31°C (87°F) | 24°C (75°F) | 138 mm | 64% | best |
| September | 27°C (81°F) | 20°C (69°F) | 187 mm | 70% | fair |
| October | 22°C (71°F) | 14°C (58°F) | 130 mm | 62% | best |
| November | 16°C (61°F) | 9°C (47°F) | 70 mm | 62% | best |
| December | 10°C (51°F) | 3°C (38°F) | 70 mm | 69% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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