Shizuoka weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: April – May, September – November
What is the weather like in Shizuoka in September?
In September, Shizuoka is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sea averages 26.1 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It rains often – on about 16 days, adding up to 263 mm. The air is often humid and muggy. All in all, September is a good month for a holiday in Shizuoka.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 54 | 60 | 65 |
| Day | 29° | 26° | 21° |
| Night | 24° | 21° | 17° |
| Sea | 27° | 26° | 24° |
| Sun | 6 h | 5 h | 5 h |
| Rain days | 17 | 16 | 14 |
More details for September
- Daylight
- 12 h 27 min05:28 – 17:55
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 23 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 64 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %12 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Shizuoka in September: quick answers
Is Shizuoka hot in September?
Warm rather than hot: in September, daytime highs in Shizuoka average 26 °C and nights cool to about 21 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Shizuoka in September?
Yes. In September the sea averages 26.1 °C – lovely and warm for swimming.
Does it rain much in Shizuoka in September?
It rains often – on about 16 days, adding up to 263 mm.
Shizuoka month by month
The whole year in ShizuokaAll destinations: JapanWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences