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Best Time to Visit Japan — South
Climate based on Okinawa • 2015–2024
The best overall weather in Japan — South is in July, with average highs around 30°C. The single best 14-day window: Jul 2 - Jul 15. The hottest month is August (30°C highs) and the coolest is January (19°C highs).
Year-at-a-glance heatmap
Each cell is colored by the typical daytime high for that day. Hover for rainfall and sunshine.
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5
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20
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Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
- Freezingbelow 0°C
- Very Cold0–5°C
- Cold5–12°C
- Fresh12–18°C
- Comfortable18–25°C
- Warm25–30°C
- Very Warm30–39°C
- Smoking Hot39°C+
Best 14-day travel windows
Top pick
Jul 2 - Jul 15
14-day window • Avg 29°C • Warm
Alternative 1
Aug 26 - Sep 8
14-day window • Avg 28°C • Warm
Alternative 2
Jul 26 - Aug 8
14-day window • Avg 29°C • Very Warm
Month-by-month breakdown
January
Comfortable18°Cavg
- 19°C / 16°C
- 101mm total
- 6.4h sun/day
February
Comfortable18°Cavg
- 20°C / 16°C
- 95mm total
- 7.2h sun/day
March
Comfortable19°Cavg
- 21°C / 17°C
- 120mm total
- 8.0h sun/day
April
Comfortable22°Cavg
- 24°C / 20°C
- 152mm total
- 8.9h sun/day
May
Warm24°Cavg
- 26°C / 23°C
- 264mm total
- 9.0h sun/day
June
Warm27°Cavg
- 28°C / 25°C
- 299mm total
- 8.8h sun/day
July
Very Warm29°Cavg
- 30°C / 27°C
- 188mm total
- 11.2h sun/day
August
Very Warm29°Cavg
- 30°C / 27°C
- 221mm total
- 11.1h sun/day
September
Warm28°Cavg
- 30°C / 26°C
- 210mm total
- 9.9h sun/day
October
Warm26°Cavg
- 27°C / 24°C
- 151mm total
- 9.5h sun/day
November
Comfortable23°Cavg
- 25°C / 21°C
- 111mm total
- 7.9h sun/day
December
Comfortable20°Cavg
- 21°C / 18°C
- 143mm total
- 6.2h sun/day
Plan your trip to Japan — South
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