Tomorrow's Weather Forecast - Sendai

Tomorrow's weather in Sendai. high 24°C (75°F), low 17°C (63°F). Overcast.

Tomorrow’s Outlook

Tomorrow will be 4°C warmer than today. Expect pleasant, mostly clear skies with little chance of rain. Humidity stays high near 80%, so it will feel muggier and stickier than the temperature alone suggests. Winds stay light and calm, rarely topping 6 km/h. Sunrise is at 5:15 AM and sunset at 5:50 PM, for about 12h 35m of daylight.

Tomorrow
24°/ 17°
Today20° / 18°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon20°
Rain probability
0%
Wind speed
4 km/h
AfternoonNoon – 6 PM23°
Rain probability
0%
Wind speed
6 km/h
Evening6 PM – Midn22°
Rain probability
1%
Wind speed
4 km/h
NightMidn – 6 AM17°
Rain probability
0%
Wind speed
3 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
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Temperature · peaks at +24°C

Planning Advice for Tomorrow

Clothing
Light layers work well; a jacket for the evening.
Outdoor
Good conditions for outdoor activities.
Travel
Standard travel conditions expected.

Sunrise & Sunset

Sunrise
Dawn 4:45 AM
Total Daylight
Full day forecastSolar noon 11:32 AM
Sunset
Dusk 6:20 PM
vs today-2 min daylight
Sunrise shift1 min later
Sunset shift1 min earlier

5-Day Weather Forecast

Full 15-Day Forecast
Today11 Sep
Drizzle
20°/ 18°
100%
Rain
1–4
Wind
Tomorrow12 Sep
Overcast
24°/ 17°
1%
Rain
2–6
Wind
Sun13 Sep
Overcast
23°/ 20°
88%
Rain
1–5
Wind
Mon14 Sep
Drizzle
27°/ 20°
92%
Rain
1–7
Wind
Tue15 Sep
Drizzle
21°/ 19°
97%
Rain
2–11
Wind

Weather Insight

Sendai is forecast to reach a high of 24°C tomorrow, with an overnight low around 17°C. That's 1° above the long-term average high of 23°C for this time of year. Expect little chance of rain (1% probability) and light winds averaging 6 km/h. Air quality is currently Moderate (AQI 84), driven mainly by PM2.5 at 28 μg/m³.

Today vs Normal

20°C-4° below normal

The long-term average high for today is 24°C.

8 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running below normal.

2026-08-28: 26°C26°2026-08-29: 21°C21°2026-08-30: 19°C19°2026-08-31: 21°C21°2026-09-01: 21°C21°2026-09-02: 28°C28°2026-09-03: 22°C22°2026-09-04: 24°C24°2026-09-05: 25°C25°2026-09-06: 21°C21°2026-09-07: 20°C20°2026-09-08: 26°C26°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.