Climate Insights for Īstgāh-e Rāh Āhan-e Garmsār

, Semnan Province, Iran

Hottest
July
39°C peak
Coldest
January
0°C low
Wettest
November
36mm rain
Best to Visit
April, October
Mild temps & low rain

Climate Overview

The climate in Īstgāh-e Rāh Āhan-e Garmsār is warm and mild. The average annual temperature is 19°C and approximately 203mm of precipitation falls per year. November is the wettest month, receiving around 36mm of rainfall. Īstgāh-e Rāh Āhan-e Garmsār is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to 0°C. Light snow can occur between January and November.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 11° Average: 5° Min: 0° Feb Max: 13° Average: 8° Min: 2° Mar Max: 19° Average: 14° Min: 8° Apr Max: 23° Average: 18° Min: 12° May Max: 31° Average: 26° Min: 19° Jun Max: 37° Average: 31° Min: 24° Jul Max: 39° Average: 34° Min: 27° Aug Max: 37° Average: 31° Min: 25° Sep Max: 33° Average: 27° Min: 20° Oct Max: 25° Average: 19° Min: 13° Nov Max: 16° Average: 11° Min: 6° Dec Max: 12° Average: 7° Min: 2°
Max
Average
Min

Īstgāh-e Rāh Āhan-e Garmsār has a wide annual temperature range, spanning 39°C from the coldest to warmest months. July is the hottest month, with daytime highs reaching 39°C and an average of 34°C. January is the coolest month, with minimum temperatures around 0°C and an average of 5°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 9°C shift in average temperatures.

Precipitation

0mm 25mm 50mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 28mm Snow: 3mm Feb Precipitation: 33mm Snow: 1mm Mar Precipitation: 27mm Snow: 0mm Apr Precipitation: 36mm Snow: 0mm May Precipitation: 9mm Snow: 0mm Jun Precipitation: 1mm Snow: 0mm Jul Precipitation: 1mm Snow: 0mm Aug Precipitation: 0mm Snow: 0mm Sep Precipitation: 1mm Snow: 0mm Oct Precipitation: 11mm Snow: 0mm Nov Precipitation: 36mm Snow: 3mm Dec Precipitation: 22mm Snow: 0mm
Precipitation
Snow

Īstgāh-e Rāh Āhan-e Garmsār is a quite dry location, receiving approximately 203mm of precipitation annually, which averages out to around 17mm per month. The wettest month is November, averaging 36mm of rainfall. April and February also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 36mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and November, totalling around 6cm annually. November is the snowiest month with approximately 3cm.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 2km/h Feb Wind Speed: 2km/h Mar Wind Speed: 3km/h Apr Wind Speed: 3km/h May Wind Speed: 3km/h Jun Wind Speed: 3km/h Jul Wind Speed: 3km/h Aug Wind Speed: 3km/h Sep Wind Speed: 3km/h Oct Wind Speed: 2km/h Nov Wind Speed: 2km/h Dec Wind Speed: 2km/h
Wind Speed

Īstgāh-e Rāh Āhan-e Garmsār is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

88 days until Autumn

It is currently summer in Īstgāh-e Rāh Āhan-e Garmsār, which began on June 21, 2026. Īstgāh-e Rāh Āhan-e Garmsār is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 39°C, while the coldest stretch bottoms out in January near 0°C. Autumn is next, beginning on September 23, 2026 — 88 days from now.

Spring

Temperatures range from 8 to 31°C. Rainfall is relatively light, with around 71mm over the season and a monthly average of 24mm. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 24 to 39°C. Precipitation is minimal, with only around 2mm for the entire season. Winds are generally light, averaging 3km/h. Stay hydrated, wear sun protection, and seek shade during the hottest hours of the day.

Autumn

Temperatures range from 6 to 33°C. Rainfall is relatively light, with around 48mm over the season and a monthly average of 16mm. Winds are generally light, averaging 2km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 0 to 13°C. Rainfall is relatively light, with around 82mm over the season and a monthly average of 27mm. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb
Mar 14°
Apr 18°
May 26°
Jun 31°
Jul 34°
Aug 31°
Sep 27°
Oct 19°
Nov 11°
Dec

The best time to visit Īstgāh-e Rāh Āhan-e Garmsār is during April and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 23mm per month. By contrast, July can be uncomfortably hot with highs reaching 39°C, while January is the coldest period with lows dropping to 0°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Īstgāh-e Rāh Āhan-e Garmsār based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
0 °C
11 °C
2 km/h
28 mm
3 cm
Feb
2 °C
13 °C
2 km/h
33 mm
1 cm
Mar
8 °C
19 °C
3 km/h
27 mm
0 cm
Apr
12 °C
23 °C
3 km/h
36 mm
0 cm
May
19 °C
31 °C
3 km/h
9 mm
0 cm
Jun Current
24 °C
37 °C
3 km/h
1 mm
0 cm
Jul
27 °C
39 °C
3 km/h
1 mm
0 cm
Aug
25 °C
37 °C
3 km/h
0 mm
0 cm
Sep
20 °C
33 °C
3 km/h
1 mm
0 cm
Oct
13 °C
25 °C
2 km/h
11 mm
0 cm
Nov
6 °C
16 °C
2 km/h
36 mm
3 cm
Dec
2 °C
12 °C
2 km/h
22 mm
0 cm
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