UTC Offset
UTC+03:30
Semnan, Iran Snapshot 2026
Where is Semnan?
Semnan, Iran
- Continent
- Asia
- Country
- Iran
- City
- Semnan
- Population
- 124.8K
- Coordinates
- 35.58°, 53.39°
Semnan is a city in Iran with a population of approximately 124.8K. Average temperatures range from 0°C (31°F) in January to 36°C (97°F) in July. The best time to visit is April, May, June, September, October.
Time in Semnan right now
Open full time & time zone page 21:09 09
Tuesday, June 30, 2026
IANA time zone
Asia/Tehran
Daylight saving
No DST
Next DST change
—
Live weather in Semnan
Daylight in Semnan today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 32m
Climate normals for Semnan
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Fair April best
Excellent May best
Excellent June best
Excellent July
Good August
Good September best
Excellent October best
Excellent November
Fair December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 0°C | 4°C / -4°C | 2days (10 mm) Excellent | 8.7h Good | 55% Moderate | 3.6 Moderate | Poor | View Details |
| February | 11°C / 1°C | 7°C / -3°C | 3days (16 mm) Excellent | 9.2h Good | 54% Moderate | 4.7 Moderate | Poor | View Details |
| March | 17°C / 6°C | 13°C / 2°C | 2days (15 mm) Excellent | 10.2h Excellent | 48% Moderate | 6.1 High | Fair | View Details |
| April best | 23°C / 11°C | 20°C / 8°C | 3days (11 mm) Excellent | 11.3h Excellent | 43% Moderate | 7.4 Very High | Excellent | View Details |
| May best | 29°C / 16°C | 26°C / 14°C | 2days (7 mm) Excellent | 12.4h Excellent | 39% Comfortable | 8.3 Very High | Excellent | View Details |
| June best | 34°C / 20°C | 32°C / 19°C | 0days (1 mm) Excellent | 12.9h Excellent | 36% Comfortable | 8.7 Very High | Excellent | View Details |
| July | 36°C / 23°C | 35°C / 22°C | 0days (0 mm) Excellent | 13h Excellent | 36% Comfortable | 8.7 Very High | Good | View Details |
| August | 34°C / 21°C | 34°C / 20°C | 0days (0 mm) Excellent | 12.5h Excellent | 36% Comfortable | 8.2 Very High | Good | View Details |
| September best | 31°C / 18°C | 29°C / 17°C | 0days (1 mm) Excellent | 11.1h Excellent | 39% Comfortable | 7.2 Very High | Excellent | View Details |
| October best | 23°C / 12°C | 20°C / 10°C | 1days (5 mm) Excellent | 10.1h Excellent | 46% Moderate | 5.7 High | Excellent | View Details |
| November | 15°C / 6°C | 11°C / 3°C | 3days (10 mm) Excellent | 8.7h Good | 55% Moderate | 4.2 Moderate | Fair | View Details |
| December | 10°C / 2°C | 6°C / -2°C | 3days (8 mm) Excellent | 8.2h Good | 60% Moderate | 3.2 Moderate | Fair | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: 8°C / 0°C . Feb: 11°C / 1°C . Mar: 17°C / 6°C . Apr: 23°C / 11°C . May: 29°C / 16°C . Jun: 34°C / 20°C . Jul: 36°C / 23°C . Aug: 34°C / 21°C . Sep: 31°C / 18°C . Oct: 23°C / 12°C . Nov: 15°C / 6°C . Dec: 10°C / 2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 10 mm. Feb: 16 mm. Mar: 15 mm. Apr: 11 mm. May: 7 mm. Jun: 1 mm. Jul: 0 mm. Aug: 0 mm. Sep: 1 mm. Oct: 5 mm. Nov: 10 mm. Dec: 8 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 55%. Feb: 54%. Mar: 48%. Apr: 43%. May: 39%. Jun: 36%. Jul: 36%. Aug: 36%. Sep: 39%. Oct: 46%. Nov: 55%. Dec: 60%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 16 km/h . Mar: 20 km/h . Apr: 20 km/h . May: 21 km/h . Jun: 19 km/h . Jul: 20 km/h . Aug: 17 km/h . Sep: 16 km/h . Oct: 16 km/h . Nov: 13 km/h . Dec: 12 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 9. Jul: UV 9. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 3.
Frequently Asked Questions
Semnan has a population of approximately 124.8K.
The best months to visit Semnan are April, May, June, September, October, when temperatures are pleasant and rainfall is lower.
Semnan receives approximately 84mm of rainfall annually across 19 rainy days.
Semnan is located in Iran, in the Asia region.