Monthly climate averages for Yokohama, Japan. Based on 10-year ERA5 reanalysis data.
Cfa Humid Subtropical
Climate OverviewYokohama, Japan in October has warm conditions, with highs averaging 20.5°C (69°F). Rain falls on about 14 days this month. Sea temperature averages 23°C (73°F).
This month falls at the middle of Autumn.
Daily highs in October gradually drop from around 24°C (75°F) at the start to 18°C (65°F) by month's end.
October sees fairly even rainfall, totalling about 188 mm across the month.
The warmest days tend to fall around the 1th, averaging 24.1°C (75°F).
Compared to September, this month is about 5°C cooler with 0 fewer rainy days. Temperatures begin dropping heading into November.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 21°C (69°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.
Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.
1 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 9°C / 3°C | 5°C / -2°C | 5days (55 mm) Good | 7.6h Good | 64% Muggy | 3.3 Moderate | Poor | View Details |
| February | 10°C / 3°C | 6°C / -1°C | 8days (58 mm) Wet | 8.1h Good | 64% Muggy | 4 Moderate | Poor | View Details |
| March | 13°C / 7°C | 10°C / 3°C | 12days (130 mm) Wet | 7.9h Good | 71% Muggy | 4.7 Moderate | Fair | View Details |
| April | 17°C / 11°C | 15°C / 8°C | 11days (123 mm) Wet | 8.6h Good | 75% Muggy | 5.5 High | Good | View Details |
| May best | 21°C / 16°C | 21°C / 14°C | 12days (137 mm) Wet | 8.7h Good | 79% Humid | 5.8 High | Excellent | View Details |
| June best | 24°C / 19°C | 26°C / 20°C | 13days (189 mm) Wet | 8.3h Good | 84% Humid | 6.6 High | Excellent | View Details |
| July | 27°C / 23°C | 32°C / 26°C | 12days (152 mm) Wet | 8.9h Good | 87% Very Muggy | 7.6 Very High | Good | View Details |
| August | 29°C / 25°C | 33°C / 28°C | 12days (117 mm) Wet | 10h Excellent | 85% Humid | 7.4 Very High | Fair | View Details |
| September best | 26°C / 22°C | 29°C / 23°C | 14days (169 mm) Wet | 7.7h Good | 83% Humid | 5.8 High | Excellent | View Details |
| October best | 21°C / 16°C | 20°C / 14°C | 14days (188 mm) Wet | 6.5h Fair | 77% Humid | 4 Moderate | Wet | View Details |
| November | 16°C / 11°C | 14°C / 8°C | 10days (94 mm) Wet | 7h Good | 73% Muggy | 3.3 Moderate | Good | View Details |
| December | 11°C / 5°C | 8°C / 1°C | 6days (54 mm) Good | 7.3h Good | 67% Muggy | 3 Moderate | Fair | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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