Semnan weather in August
In August, Semnan sees average daytime highs of 35°C and overnight lows near 23°C, with 1 mm of rain across 0.3 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.
Highs ease over the month, from about 35°C in the first days to 33°C by the end. The sky is clear or mostly clear about 98% of the time in August, and the air most often feels dry.
Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Semnan's 1st-clearest and 4th-windiest month. For the whole year in context, see Semnan's year-round climate.
- Daytime high
- 35°
- 2nd warmest
- Overnight low
- 23°
- 11th coldest
- Rainfall
- 1 mm
- 0.3 wet days
- Daylight
- 13 h 24 min
- 5:20 AM – 6:41 PM
- Cloud cover
- 9%
- 1st clearest
- Wind
- 12 km/h
- 4th windiest
- Solar energy
- 7.04 kWh/m²
- Travel score
- 3.8
- out of 10
Semnan is city in Semnan Province, Iran.
- Air quality
- Elevated
- PM10 48.4 µg/m³ · 2014
- Founded
- ~240 CE
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 35°C in the first days to 33°C by the end.
A typical August day in Semnan reaches about 35°C in the afternoon and slips back to 23°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 37°C. Set against its neighbours, August runs about 1°C cooler than July and about 4°C warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 33 |
| Avg low (°C) | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 36 | 24 |
| 2 | 36 | 24 |
| 3 | 35 | 24 |
| 4 | 35 | 23 |
| 5 | 35 | 23 |
| 6 | 35 | 23 |
| 7 | 35 | 23 |
| 8 | 35 | 23 |
| 9 | 35 | 23 |
| 10 | 35 | 23 |
| 11 | 35 | 23 |
| 12 | 35 | 23 |
| 13 | 35 | 23 |
| 14 | 35 | 23 |
| 15 | 35 | 23 |
| 16 | 35 | 23 |
| 17 | 35 | 23 |
| 18 | 35 | 22 |
| 19 | 35 | 22 |
| 20 | 34 | 22 |
| 21 | 34 | 22 |
| 22 | 34 | 22 |
| 23 | 34 | 22 |
| 24 | 34 | 22 |
| 25 | 34 | 22 |
| 26 | 34 | 22 |
| 27 | 34 | 21 |
| 28 | 33 | 21 |
| 29 | 33 | 21 |
| 30 | 33 | 21 |
| 31 | 33 | 21 |
How August really feels in Semnan
Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Semnan weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / -0° | 12 | 3.2 | 1.7 | 9.9 | 1.6 |
| Feb | 10° / 1° | 14 | 2.9 | 1.4 | 10.7 | 2.9 |
| Mar | 16° / 6° | 18 | 3.9 | 0.9 | 11.7 | 5.7 |
| Apr | 22° / 11° | 13 | 2.7 | 0.1 | 12.9 | 8.0 |
| May | 28° / 17° | 5 | 1.3 | 0 | 13.9 | 7.6 |
| Jun | 33° / 21° | 1 | 0.3 | 0 | 14.4 | 4.5 |
| Jul | 36° / 24° | 1 | 0.3 | 0 | 14.2 | 2.9 |
| Aug | 35° / 23° | 1 | 0.3 | 0 | 13.3 | 3.8 |
| Sep | 30° / 18° | 2 | 0.5 | 0 | 12.2 | 6.8 |
| Oct | 23° / 12° | 5 | 1.1 | 0 | 11.1 | 8.8 |
| Nov | 15° / 6° | 11 | 3 | 0.2 | 10.1 | 5.4 |
| Dec | 9° / 1° | 10 | 3.1 | 0.9 | 9.6 | 2.3 |
Cloud cover in August
The sky is clear or mostly clear about 98% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 2% of August, with mostly cloudy or overcast conditions the remaining 0%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Cloudier (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
| 31 | 100 | 0 |
Chance of precipitation in August
Semnan gets around 1 mm of rain over 0.3 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 1% and peaks near 1% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Rain chance (%) | |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 1 |
| 19 | 1 |
| 20 | 1 |
| 21 | 1 |
| 22 | 1 |
| 23 | 1 |
| 24 | 1 |
| 25 | 1 |
| 26 | 1 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1 |
| 30 | 1 |
| 31 | 1 |
Humidity in August
Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 91 | 90 | 89 | 89 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 89 | 89 | 89 | 90 | 90 | 90 | 91 | 91 | 91 | 92 | 92 | 93 | 93 | 93 | 94 | 94 | 94 | 95 | 95 | 96 |
| Comfortable (%) | 9 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 91 | 9 |
| 2 | 90 | 10 |
| 3 | 89 | 11 |
| 4 | 89 | 11 |
| 5 | 88 | 12 |
| 6 | 88 | 12 |
| 7 | 88 | 12 |
| 8 | 88 | 12 |
| 9 | 88 | 12 |
| 10 | 88 | 12 |
| 11 | 88 | 12 |
| 12 | 89 | 11 |
| 13 | 89 | 11 |
| 14 | 89 | 11 |
| 15 | 90 | 10 |
| 16 | 90 | 10 |
| 17 | 90 | 10 |
| 18 | 91 | 9 |
| 19 | 91 | 9 |
| 20 | 91 | 9 |
| 21 | 92 | 8 |
| 22 | 92 | 8 |
| 23 | 93 | 7 |
| 24 | 93 | 7 |
| 25 | 93 | 7 |
| 26 | 94 | 6 |
| 27 | 94 | 6 |
| 28 | 94 | 6 |
| 29 | 95 | 5 |
| 30 | 95 | 5 |
| 31 | 96 | 4 |
Wind in August
Winds average 12 km/h in August.
Across August, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | light breeze |
| 2 | 12 | light breeze |
| 3 | 12 | light breeze |
| 4 | 12 | light breeze |
| 5 | 12 | light breeze |
| 6 | 12 | light breeze |
| 7 | 12 | light breeze |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | calm |
| 12 | 12 | calm |
| 13 | 12 | calm |
| 14 | 12 | calm |
| 15 | 12 | calm |
| 16 | 12 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in August
Daylight runs from about 13 h 48 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 60 minutes over August. Sunrise moves from 5:08 AM to 5:32 AM, and sunset from 6:57 PM to 6:21 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 13.0 | 12.9 | 12.9 | 12.9 | 12.8 |
| Sunrise (AM) | 5:08 | 5:09 | 5:10 | 5:10 | 5:11 | 5:12 | 5:13 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:21 | 5:22 | 5:23 | 5:24 | 5:25 | 5:25 | 5:26 | 5:27 | 5:28 | 5:29 | 5:29 | 5:30 | 5:31 | 5:32 |
| Sunset (PM) | 6:57 | 6:56 | 6:55 | 6:54 | 6:53 | 6:52 | 6:51 | 6:50 | 6:49 | 6:48 | 6:47 | 6:46 | 6:45 | 6:44 | 6:42 | 6:41 | 6:40 | 6:39 | 6:37 | 6:36 | 6:35 | 6:34 | 6:32 | 6:31 | 6:30 | 6:28 | 6:27 | 6:25 | 6:24 | 6:23 | 6:21 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.8 | 5:08 | 6:57 |
| 2 | 13.8 | 5:09 | 6:56 |
| 3 | 13.8 | 5:10 | 6:55 |
| 4 | 13.7 | 5:10 | 6:54 |
| 5 | 13.7 | 5:11 | 6:53 |
| 6 | 13.7 | 5:12 | 6:52 |
| 7 | 13.6 | 5:13 | 6:51 |
| 8 | 13.6 | 5:13 | 6:50 |
| 9 | 13.6 | 5:14 | 6:49 |
| 10 | 13.6 | 5:15 | 6:48 |
| 11 | 13.5 | 5:16 | 6:47 |
| 12 | 13.5 | 5:17 | 6:46 |
| 13 | 13.5 | 5:17 | 6:45 |
| 14 | 13.4 | 5:18 | 6:44 |
| 15 | 13.4 | 5:19 | 6:42 |
| 16 | 13.4 | 5:20 | 6:41 |
| 17 | 13.3 | 5:21 | 6:40 |
| 18 | 13.3 | 5:21 | 6:39 |
| 19 | 13.3 | 5:22 | 6:37 |
| 20 | 13.2 | 5:23 | 6:36 |
| 21 | 13.2 | 5:24 | 6:35 |
| 22 | 13.1 | 5:25 | 6:34 |
| 23 | 13.1 | 5:25 | 6:32 |
| 24 | 13.1 | 5:26 | 6:31 |
| 25 | 13.0 | 5:27 | 6:30 |
| 26 | 13.0 | 5:28 | 6:28 |
| 27 | 13.0 | 5:29 | 6:27 |
| 28 | 12.9 | 5:29 | 6:25 |
| 29 | 12.9 | 5:30 | 6:24 |
| 30 | 12.9 | 5:31 | 6:23 |
| 31 | 12.8 | 5:32 | 6:21 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 7.04 kWh/m².
For context, solar energy here swings from a low near 2.8 kWh/m² to a high of 7.71 kWh/m² in June across the year — August's 7.04 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.4 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.1 | 7.1 | 7.1 | 7.0 | 7.0 | 7.0 | 7.0 | 6.9 | 6.9 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.5 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 7.4 | Intense |
| 2 | 7.3 | Intense |
| 3 | 7.3 | Intense |
| 4 | 7.3 | Intense |
| 5 | 7.3 | Intense |
| 6 | 7.3 | Intense |
| 7 | 7.3 | Intense |
| 8 | 7.3 | Intense |
| 9 | 7.2 | Intense |
| 10 | 7.2 | Intense |
| 11 | 7.2 | Intense |
| 12 | 7.2 | Intense |
| 13 | 7.2 | Intense |
| 14 | 7.1 | Intense |
| 15 | 7.1 | Intense |
| 16 | 7.1 | Intense |
| 17 | 7.0 | Intense |
| 18 | 7.0 | Intense |
| 19 | 7.0 | Intense |
| 20 | 7.0 | Intense |
| 21 | 6.9 | Intense |
| 22 | 6.9 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.7 | Intense |
| 27 | 6.7 | Intense |
| 28 | 6.7 | Intense |
| 29 | 6.6 | Intense |
| 30 | 6.6 | Intense |
| 31 | 6.5 | Intense |
Is August a good time to visit Semnan?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a weaker month for outdoor sightseeing in Semnan. The water and warmth also suit a beach or pool day.
What to pack for Semnan in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Semnan sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.
UV index in Semnan in August
Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Semnan peaks around July 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 5 | 8 | 10 | 10 | 11 | 10 | 8 | 6 | 4 | 3 |
| Level | Moderate | High | Moderate | Very high | Very high | Very high | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | High |
| Mar | 5 | Moderate |
| Apr | 8 | Very high |
| May | 10 | Very high |
| Jun | 10 | Very high |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Semnan in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Semnan is worst in December — around 46 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (August, 22 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 43 | 41 | 38 | 40 | 34 | 23 | 23 | 22 | 28 | 32 | 39 | 46 |
| Level | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 43 | Poor |
| Feb | 41 | Poor |
| Mar | 38 | Poor |
| Apr | 40 | Poor |
| May | 34 | Moderate |
| Jun | 23 | Moderate |
| Jul | 23 | Moderate |
| Aug | 22 | Moderate |
| Sep | 28 | Moderate |
| Oct | 32 | Moderate |
| Nov | 39 | Poor |
| Dec | 46 | Poor |
Where is Semnan?
Semnan sits at 35.6°N, 53.4°E, 1,148 m above sea level, in Iran. The nearest listed city is Mahdishahr, 15 km away.
Topography around Semnan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Semnan.
Within 3 km, the terrain around Semnan has only modest variations in elevation — a maximum elevation change of 144 m around an average of 1,149 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,254 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,375 m.
The land around Semnan is covered by artificial surfaces (59%) and bare terrain (20%) within 3 km, bare terrain (84%) within 16 km, and bare terrain (67%) and grassland (22%) within 80 km.
Iran travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 352% of US
- price level, 2025
- GDP per capita
- $3,924
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Safe drinking water
- 94%
- of population, 2024
- Homicide rate
- 2.4
- per 100k, 2014
- Road deaths
- 21.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 492
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Semnan (35.5769°, 53.392°, elevation 1,148 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).