Weather in Sendai Today
Current temperature in Sendai: 18°C (64°F). Mainly Clear. Today's high 20°C (68°F), low 18°C (64°F).
Today's Daylight Forecast
Moon & Islamic Calendar
Air quality and UV are both favourable great conditions for a walk, run, or outdoor activity.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs 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.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Health & Activity Advice
UV index is 3 today — low. Minimal sun protection is needed for most outdoor activity.
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Conditions are comfortable for outdoor activity at most points during the day today.
Nearby Regional Outlook
Sendai Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Sendai?
The hottest month in Sendai is typically August, with daytime highs averaging around 28.7°C (84°F), based on 10 years of historical weather data. Overnight lows during this period average near 21.8°C (71°F).
What is the coldest month in Sendai?
The coldest month in Sendai is typically January, with overnight lows averaging around -2.7°C (27°F) and daytime highs near 5.1°C (41°F), based on 10 years of historical weather data. Freezing overnight temperatures are common during this month, so plan for icy conditions in the early morning.
Does Sendai have a rainy season?
Sendai doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. August is the wettest month on average (about 194 mm), while February is the driest (about 55 mm).
What's the best time of year to visit Sendai?
The best time to visit Sendai is typically May to June, when daytime highs average a comfortable 22.3°C (72°F). Rainfall during this window averages around 122 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.
Is Sendai's air quality safe right now?
As of the latest reading, Sendai's air quality index (AQI) is 34, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.