Climate averages 1991–2020
Yokosuka weather
in May.
A mild, wet month: the 6th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Yokosuka: daytime highs average 19.8°C and nights cool to about 15.7°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 138 mm of rain on roughly 11 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 00 min on an average May day.
The nearest other city in this atlas is Yokohama (17 km away). In May its highs average 20.1°C, about as warm as Yokosuka, with 128 mm of rain.
Among the 303 cities listed in Japan, Yokosuka ranks joint 261st of 303 for the warmest May highs and joint 125th of 303 for the driest May (rainfall, lowest first). The mean May high of those 303 cities is 21.3°C; Yokosuka is 1.5°C cooler than that mean.
From May to June, average highs rise by 2.8°C to 22.6°C, and monthly rainfall rises from 138 mm to 182 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Yokosuka climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.2°C4.3°C | 4.3°C | 81 | 7.4 | 10.110 h |
| February | 9.6°C4.3°C | 4.3°C | 84 | 8.6 | 10.911 h |
| March | 12.3°C6.9°C | 6.9°C | 144 | 13.0 | 11.912 h |
| April | 16.1°C11.3°C | 11.3°C | 126 | 11.6 | 13.113 h |
| May, selected | 19.8°C15.7°C | 15.7°C | 138 | 10.9 | 14.014 h |
| June | 22.6°C19.2°C | 19.2°C | 182 | 12.9 | 14.514 h |
| July | 25.8°C22.8°C | 22.8°C | 147 | 11.5 | 14.314 h |
| August | 27.4°C24.3°C | 24.3°C | 107 | 9.8 | 13.513 h |
| September | 25.1°C21.7°C | 21.7°C | 185 | 13.2 | 12.412 h |
| October | 20.6°C16.8°C | 16.8°C | 222 | 12.7 | 11.311 h |
| November | 16.2°C11.8°C | 11.8°C | 115 | 10.7 | 10.310 h |
| December | 11.7°C7.0°C | 7.0°C | 73 | 8.5 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Yokohama in MayJapan · 17 kmHigh 20.1°C · Low 14.9°C · 128 mm rain
- Fujisawa in MayJapan · 19 kmHigh 19.8°C · Low 15.0°C · 159 mm rain
- Chigasaki in MayJapan · 25 kmHigh 19.8°C · Low 14.8°C · 159 mm rain
- Kisarazu in MayJapan · 26 kmHigh 21.2°C · Low 15.2°C · 149 mm rain
- Kawasaki in MayJapan · 27 kmHigh 21.1°C · Low 15.0°C · 128 mm rain
- Hiratsuka in MayJapan · 30 kmHigh 19.9°C · Low 14.4°C · 181 mm rain
- Minamirinkan in MayJapan · 31 kmHigh 20.4°C · Low 13.3°C · 137 mm rain
- Ōta in MayJapan · 31 kmHigh 21.3°C · Low 14.6°C · 128 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Yokosuka) is explained once on the Yokosuka year overview and on the Sources, method and limits page.