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Weather in Shizuoka - 14-day forecast

Detailed weather forecast for Shizuoka, Japan: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Shizuoka
today🌧️ 23°💧 36.7 mm
Sun🌧️ 24°💧 35.2 mm
Mon🌧️ 22°💧 98.3 mm
Tue🌧️ 25°💧 31.1 mm
Wed🌧️ 26°💧 40.4 mm
Thu🌧️ 21°💧 63.5 mm
Fri🌧️ 20°💧 9.7 mm
Sat🌤️ 26°💧 4.5 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Friday 11 Sept in Shizuoka, the forecast high is 20°C. Typical daytime temperatures at this time of year range from 24°C to 27°C, so it will be exceptionally cool. It is cooler than 97% of similar days.

23°Cexceptionally cool
usually 25°C–28°C
cooler than 95% of similar days
night: exceptionally warm rain: exceptionally wet wind: stronger than usual
24°Ccooler than usual
usually 25°C–28°C
cooler than 81% of similar days
night: warmer than usual rain: exceptionally wet wind: exceptionally strong
22°Cexceptionally cool
usually 24°C–28°C
cooler than 95% of similar days
night: exceptionally warm rain: exceptionally wet wind: stronger than usual
25°Ccooler than usual
usually 24°C–28°C
cooler than 72% of similar days
night: exceptionally warm rain: exceptionally wet wind: exceptionally light
26°Cnear normal
usually 24°C–27°C
night: exceptionally warm rain: exceptionally wet wind: lighter than usual
21°Cexceptionally cool
usually 24°C–27°C
cooler than 96% of similar days
night: exceptionally warm rain: exceptionally wet wind: stronger than usual
20°Cexceptionally cool
usually 24°C–27°C
cooler than 97% of similar days
night: warmer than usual rain: more rain than usual wind: stronger than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
20°28°35° 1981: 23°C1982: 23°C1983: 26°C1984: 25°C1985: 27°C1986: 27°C1987: 27°C1988: 24°C1989: 26°C1990: 28°C1991: 27°C1992: 27°C1993: 24°C1994: 29°C1995: 26°C1996: 24°C1997: 26°C1998: 25°C1999: 25°C2000: 25°C2001: 25°C2002: 26°C2003: 26°C2004: 25°C2005: 26°C2006: 27°C2007: 26°C2008: 26°C2009: 26°C2010: 28°C2011: 26°C2012: 26°C2013: 27°C2014: 25°C2015: 24°C2016: 26°C2017: 26°C2018: 25°C2019: 28°C2020: 26°C2021: 24°C2022: 26°C2023: 26°C2024: 28°C2025: 28°C 2026 forecast: 23°C current forecast 23°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 26°C by day. The coolest year was 1981 (23°C) and the warmest was 1994 (29°C). The current forecast averages 23°C - lower than in 98% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Shizuoka

Shizuoka - 14-day weather forecast infographic

Shizuoka 30 & 45-day weather - long-range outlook

Next 16 days · forecast
24°
around 23° at night · days with rain: 14
Weeks 3-4 · avg for September
25°
around 22° at night · rain chance 56%
Weeks 5-7 · avg for October
21°
around 18° at night · rain chance 50%
The 30 & 45-day outlook for Shizuoka: the next 16 days are a numerical forecast updated daily - on average 24° by day and 23° at night. Further out we rely on multi-year climate averages: around 25° in September, and about 21° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Shizuoka

Saturday5 September 2026
🌧️23°heavy rain
sunrise 05:21 · sunset 18:09 · night 22° · evening 22° · rain 36.68 mm · humidity 82% · wind 5 m/s · clouds 100%
Sunday6 September 2026
🌧️24°heavy rain
sunrise 05:22 · sunset 18:07 · night 20° · evening 21° · rain 35.18 mm · humidity 68% · wind 8 m/s · clouds 100%
Monday7 September 2026
🌧️22°very heavy rain
sunrise 05:23 · sunset 18:06 · night 24° · evening 24° · rain 98.28 mm · humidity 95% · wind 7 m/s · clouds 100%
Tuesday8 September 2026
🌧️25°heavy rain
sunrise 05:24 · sunset 18:05 · night 24° · evening 24° · rain 31.14 mm · humidity 91% · wind 3 m/s · clouds 100%
Wednesday9 September 2026
🌧️26°heavy rain
sunrise 05:24 · sunset 18:03 · night 25° · evening 25° · rain 40.36 mm · humidity 96% · wind 3 m/s · clouds 100%
Thursday10 September 2026
🌧️21°heavy rain
sunrise 05:25 · sunset 18:02 · night 21° · evening 21° · rain 63.47 mm · humidity 95% · wind 6 m/s · clouds 100%
Friday11 September 2026
🌧️20°moderate rain
sunrise 05:26 · sunset 18:00 · night 21° · evening 21° · rain 9.72 mm · humidity 95% · wind 6 m/s · clouds 100%
Saturday12 September 2026
🌤️26°scattered clouds
sunrise 05:27 · sunset 17:59 · night 23° · evening 24° · rain 4.53 mm · humidity 70% · wind 4 m/s · clouds 26%
Sunday13 September 2026
☀️27°clear sky
sunrise 05:27 · sunset 17:57 · night 24° · evening 25° · rain 2.13 mm · humidity 62% · wind 4 m/s · clouds 2%
Monday14 September 2026
☁️27°overcast clouds
sunrise 05:28 · sunset 17:56 · night 24° · evening 25° · rain 1.5 mm · humidity 63% · wind 3 m/s · clouds 100%
Tuesday15 September 2026
🌧️28°light rain
sunrise 05:29 · sunset 17:55 · night 25° · evening 25° · rain 0.33 mm · humidity 66% · wind 5 m/s · clouds 42%
Wednesday16 September 2026
🌧️25°moderate rain
sunrise 05:29 · sunset 17:53 · night 22° · evening 23° · rain 12.15 mm · humidity 90% · wind 3 m/s · clouds 93%
Thursday17 September 2026
🌧️23°light rain
sunrise 05:30 · sunset 17:52 · night 21° · evening 22° · rain 4.71 mm · humidity 81% · wind 3 m/s · clouds 97%
Friday18 September 2026
🌧️25°light rain
sunrise 05:31 · sunset 17:50 · night 22° · evening 23° · rain 0.66 mm · humidity 62% · wind 4 m/s · clouds 100%
Saturday19 September 2026
🌧️24°light rain
sunrise 05:32 · sunset 17:49 · night 22° · evening 23° · rain 5.16 mm · humidity 75% · wind 4 m/s · clouds 100%
Sunday20 September 2026
🌧️25°light rain
sunrise 05:32 · sunset 17:47 · night 22° · evening 23° · rain 1.5 mm · humidity 65% · wind 3 m/s · clouds 100%

UV index in Shizuoka - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTShizuoka03681111+4.5UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.Unprotected fair skin may burn in about 45 min5Sat5.092Sun6.091Mon7.093Tue8.091Wed9.091Thu10.092Fri11.096Sat12.094Sun13.097Mon14.097Tue15.096Wed16.097Thu17.096Fri18.095Sat19.097Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Shizuoka is 5 (moderate) - unprotected fair skin can burn in about 45 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Sea temperature - Shizuoka

Water today
28°C
Week avg
27°C
Waves today
1 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 28°C6.09 27°C7.09 27°C8.09 28°C9.09 28°C10.09 27°C11.09 27°C12.09 27°C13.09 28°C
Average sea temperature through the year:
Jan 16°CFeb 16°CMar 16°CApr 17°CMay 20°CJun 23°CJul 27°CAug 29°CSep 28°COct 25°CNov 22°CDec 18°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Shizuoka weather through the year

Shizuoka - annual climate

Warmest, driest months on average: April, May, June, September.

Upcoming public holidays in Japan: Respect for the Aged Day — 21 September · Citizen's Holiday — 22 September · Autumnal Equinox Day — 23 September. Full calendar and travel notes

Nearby and related places

YokohamaNagoyaTokyoTakayamaOsakaNikkō

FAQ - Shizuoka weather

What is the weather like in Shizuoka today?
Today it is about 23° during the day and 22° at night, heavy rain.
How far ahead can I check the forecast for Shizuoka?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.