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Weather in Semnan, Iran 🇮🇷

Current Weather in Semnan

Overcast
23°C
Feels like 20°C. Overcast.
🌬️ 9 km/h SE
💧 31% Humidity
🧭 1018 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 5°C
🌅 Sunrise: 05:54 AM
🌇 Sunset: 05:35 PM
Map Overlays:

Right now Semnan is 23°C with overcast, feeling like 20°C. Relative humidity is 31%, with winds around 9 km/h, and the UV index is 0 (low). The next few days in Semnan look set for about 17°C up to 30°C.

Hourly Forecast for Semnan

19:00
Overcast
22°
8%
20:00
Overcast
22°
10%
21:00
Overcast
21°
10%
22:00
Clear
21°
1%
23:00
Clear
20°
1%
00:00
Clear
19°
1%
01:00
Clear
19°
1%
02:00
Clear
19°
1%
03:00
Clear
18°
1%
04:00
Clear
18°
1%
05:00
Clear
18°
1%
06:00
Sunny
18°
1%
07:00
Sunny
20°
1%
08:00
Sunny
22°
1%
09:00
Sunny
23°
1%
10:00
Sunny
24°
1%
11:00
Sunny
25°
1%
12:00
Sunny
26°
1%
13:00
Partly Cloudy
27°
2%
14:00
Sunny
27°
1%
15:00
Sunny
27°
1%
16:00
Sunny
27°
1%
17:00
Sunny
25°
1%
18:00
Overcast
24°
9%

14-Day Forecast for Semnan

Mon, Oct 05
Sunny Sunny
25° / 17°
Tue, Oct 06
Sunny Sunny
27° / 18°
Wed, Oct 07
Overcast Overcast
30° / 21°
Thu, Oct 08
Overcast Overcast
32° / 22°
Fri, Oct 09
Overcast Overcast
32° / 21°
Sat, Oct 10
Sunny Sunny
32° / 19°
Sun, Oct 11
Sunny Sunny
27° / 18°
Mon, Oct 12
Sunny Sunny
28° / 19°
Tue, Oct 13
Overcast Overcast
29° / 19°
Wed, Oct 14
Overcast Overcast
30° / 21°
Thu, Oct 15
Patchy rain nearby Patchy rain nearby
25° / 17°
Fri, Oct 16
Partly Cloudy Partly Cloudy
23° / 15°
Sat, Oct 17
Sunny Sunny
22° / 17°
Sun, Oct 18
Patchy rain nearby Patchy rain nearby
19° / 14°

Additional Forecasts for Semnan

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 474.0 μg/m³
O₃ (Ozone) 109.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.7 μg/m³
SO₂ (Sulphur Dioxide) 1.4 μg/m³
PM2.5 (Fine particles) 8.5 μg/m³
PM10 (Coarse particles) 23.7 μg/m³

Historical Weather

Weather Forecasts for Other Cities in Iran

Browse Weather in Iran by cities in alphabetical order:

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Weather in Iran ›

Best Time to Be Outside in Semnan Tomorrow

There is no good daylight window left in Semnan today. Tomorrow, the most comfortable window looks like 07:00 to 10:00, when it is around 22°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Semnan

What is the temperature in Semnan right now?

It is currently 23°C (73°F) in Semnan, overcast (feels like 20°C).

What's the weather like in Semnan right now?

Current weather in Semnan: Overcast, humidity 31%, wind 9 km/h SE.

What is today's forecast for Semnan?

Today in Semnan: high 25°C, low 17°C, sunny. Chance of rain: 3%.

What is the 7-day weather forecast for Semnan?

Daily highs and lows for Semnan:

  • 2026-10-05: 25°C / 17°C
  • 2026-10-06: 27°C / 18°C
  • 2026-10-07: 30°C / 21°C
  • 2026-10-08: 32°C / 22°C
  • 2026-10-09: 32°C / 21°C
  • 2026-10-10: 32°C / 19°C
  • 2026-10-11: 27°C / 18°C
Is it going to rain in Semnan today?

There is a 3% chance of rain in Semnan today.

What is the wind speed in Semnan right now?

Wind in Semnan is currently 9 km/h (6 mph) from the SE.

What is the UV index in Semnan right now?

The UV index in Semnan is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

Weather forecasts for other major cities in 🇮🇷 Iran: Tehran · Mashhad · Isfahan · Karaj · Tabriz · Shiraz · Qom · Ahvaz · Pasragad Branch · Kahrīz · Kermanshah · Rasht · Kerman · Orūmīyeh · Zahedan · Hamadān · Āzādshahr · Arāk · Yazd · Eslamshahr · Ardabīl · Abadan · Zanjan · Bandar Abbas · Sanandaj · Qazvin · Khorramshahr · Khorramabad · Khomeynī Shahr · Sari · Borūjerd · Qarchak · Gorgān · Golestān · Sabzevar · Najafābād · Neyshābūr · Naz̧arābād · Būkān · Sirjan · Bābol · Āmol · Bīrjand · Bojnūrd · Varāmīn · Malāyer · Sāveh · Khowy · Bushehr · Mahābād