Weather in Semnan — today, tomorrow and 14-day forecast
Weather in Semnan now: +31°, clear, wind 3.3 m/s, humidity 19%. Accurate forecast for today, tomorrow, 3 days and 2 weeks — temperature, precipitation, pressure and wind.
Weather in Semnan now
Hourly forecast for today in Semnan
Weather in Semnan tomorrow
From +26° to +40° — day and night.
Weather in Semnan for 3 days
From +26° to +40° — day and night.
Weather in Semnan for the week
Including the 5-day outlook.
From +23° to +40° — day and night.
Weather in Semnan for 2 weeks
Including the 10-day outlook.
From +23° to +40° — day and night.
Weekend weather in Semnan
Weather for the weather-sensitive
📒 Weather diary in Semnan
Ready-made observation table for August: past days are already filled in with weather-station data — for school and beyond. Open the diary →
What to do in Semnan in weather like this 🎯
✉️ Weather forecast by email
Get the forecast for this city by email — every day at 17:00 Moscow time.
The Moon today 🌙
Semnan, Iran. Population 124 826.
Precipitation map 🌧️
Cities near Semnan 📍
FAQ about weather in Semnan ❓
What's the weather in Semnan right now?
Now +31°, clear, wind 3.3 m/s, N, humidity 19%. Feels like +28°.
What's the weather in Semnan tomorrow?
Tomorrow: +40° by day, +26° at night, clear.
Sunrise and sunset in Semnan?
Sunrise 05:17, sunset 18:44, day length 13h 27m.
What's the pressure and humidity in Semnan?
Pressure 756 mmHg, humidity 19%, wind 6 m/s. Matters for weather-sensitive people.
Do I need an umbrella in Semnan today?
No, precipitation is unlikely — you can go out without an umbrella.
Will it be hot in Semnan?
Up to +39° by day — hot. Drink more water, avoid the sun from noon to 4 PM, wear light clothes and a hat.
Do I need sunscreen in Semnan?
Yes, the UV index is 10 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
How long is it safe to stay in the sun in Semnan?
At UV 10, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
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Weather in Semnan — in detail
Weather in Semnan from “Pogoda 1” — an accurate, free forecast: current temperature, feels-like, wind, atmospheric pressure, humidity and precipitation. Available for today, tomorrow, 3, 5 and 10 days, a week, 2 weeks and a month, plus hourly weather, monthly climate, water temperature, air quality and an observation archive since 2017.
To quickly check the weather in Semnan anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.