Year-round weather and climate in Yokosuka, Japan
Average temperatures in Yokosuka run from an average low of 5°C41°F in January up to an average high of 30°C86°F in August. January is the driest month at 5 rainy days; June the wettest at 14. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 409K
- Currency
- JPY
- Language
- Japanese
- Time zone
- Tokyo
Best time to visit
The most pleasant weather falls in September, October, and November, offering a perfect balance of comfortable temperatures and clear skies.
Rain character
Tropical Downpours: Expect intense bursts of rain during wetter months. Pack quick-drying footwear and a compact umbrella.
Day-to-night swing
Thermal Flatline: Day-to-night temperatures barely budge. Evenings are just as warm as the afternoon, meaning you can confidently leave the evening jacket in your hotel.
Seasonality Profile
Humid Subtropical: Sweltering, wet summers accompanied by mild, drier winters.
Evening vibe
Cozy Indoor Culture: Evenings are generally crisp, damp, or sweltering. Nightlife centers around indoor venues.
Sightseeing stamina
All-Day Strolling: Weather is generally forgiving for long walking days. Comfortable sneakers are your most important packing item.
Average temperatures, sunshine, and rainfall
Average monthly weather in Yokosuka, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Jan is typically driest at 5 days (47mm); Jun the wettest at 14 days (224mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 11°C / 51°F | 5°C / 41°F | 8h | 5 | 47mm |
| Feb | 11°C / 52°F | 5°C / 41°F | 8h | 8 | 71mm |
| Mar | 14°C / 58°F | 8°C / 47°F | 8h | 13 | 197mm |
| Apr | 18°C / 65°F | 13°C / 56°F | 8h | 12 | 132mm |
| May | 21°C / 69°F | 16°C / 61°F | 8h | 13 | 203mm |
| Jun | 25°C / 76°F | 20°C / 69°F | 9h | 14 | 224mm |
| Jul | 29°C / 84°F | 25°C / 77°F | 11h | 9 | 86mm |
| Aug | 30°C / 86°F | 26°C / 79°F | 11h | 11 | 123mm |
| Sep | 28°C / 83°F | 24°C / 76°F | 9h | 10 | 144mm |
| Oct | 22°C / 72°F | 18°C / 64°F | 7h | 13 | 175mm |
| Nov | 17°C / 63°F | 12°C / 54°F | 8h | 7 | 91mm |
| Dec | 13°C / 56°F | 8°C / 46°F | 8h | 5 | 34mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Yokosuka?
The most sunshine in Yokosuka comes around August, averaging 11 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Yokosuka?
Your packing list depends entirely on when you travel. Temperatures in Yokosuka swing from an average low of 5°C41°F in January up to 30°C86°F in August. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Yokosuka?
Yokosuka gets rain on about 120 days out of the year. The wettest month is June. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Yokosuka with Packola.
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