Climate Insights for Chālūs

Mazandaran Province, Iran

Hottest
August
28°C peak
Coldest
February
9°C low
Wettest
November
205mm rain
Best to Visit
April, May, June
Mild temps & low rain

Climate Overview

The climate in Chālūs is warm and mild. The average annual temperature is 18°C and approximately 1337mm of precipitation falls per year. Chālūs receives a notable amount of rainfall throughout the year, including during its driest month. Chālūs is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, January, March, when temperatures can drop to 9°C. Light snow can occur between January and November.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 12° Average: 11° Min: 9° Feb Max: 12° Average: 10° Min: 9° Mar Max: 14° Average: 12° Min: 10° Apr Max: 17° Average: 15° Min: 13° May Max: 22° Average: 20° Min: 18° Jun Max: 26° Average: 24° Min: 23° Jul Max: 27° Average: 26° Min: 24° Aug Max: 28° Average: 27° Min: 25° Sep Max: 25° Average: 24° Min: 22° Oct Max: 21° Average: 20° Min: 18° Nov Max: 17° Average: 16° Min: 14° Dec Max: 14° Average: 13° Min: 11°
Max
Average
Min

Chālūs sees moderate temperature variation throughout the year, ranging from 9°C to 28°C. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 9°C and an average of 10°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 146mm Snow: 1mm Feb Precipitation: 130mm Snow: 5mm Mar Precipitation: 98mm Snow: 1mm Apr Precipitation: 71mm Snow: 0mm May Precipitation: 56mm Snow: 0mm Jun Precipitation: 33mm Snow: 0mm Jul Precipitation: 71mm Snow: 0mm Aug Precipitation: 42mm Snow: 0mm Sep Precipitation: 142mm Snow: 0mm Oct Precipitation: 193mm Snow: 0mm Nov Precipitation: 205mm Snow: 2mm Dec Precipitation: 150mm Snow: 0mm
Precipitation
Snow

Chālūs is a fairly wet location, receiving approximately 1337mm of precipitation annually, which averages out to around 111mm per month. The wettest month is November, averaging 205mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 33mm. That's 171mm 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 9cm annually. February is the snowiest month with approximately 5cm.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 9km/h Feb Wind Speed: 10km/h Mar Wind Speed: 10km/h Apr Wind Speed: 9km/h May Wind Speed: 9km/h Jun Wind Speed: 8km/h Jul Wind Speed: 9km/h Aug Wind Speed: 9km/h Sep Wind Speed: 9km/h Oct Wind Speed: 9km/h Nov Wind Speed: 9km/h Dec Wind Speed: 10km/h
Wind Speed

Chālūs is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

Seasons

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

8 days until Autumn

It is currently summer in Chālūs, which began on June 21, 2026. Chālūs 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 August at around 28°C, while the coldest stretch bottoms out in February near 9°C. Autumn is next, beginning on September 23, 2026 (8 days from now).

Spring

Temperatures range from 10 to 22°C. Precipitation is moderate at around 225mm for the season, averaging 75mm per month. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 23 to 28°C. Rainfall is relatively light, with around 146mm over the season and a monthly average of 49mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 14 to 25°C. Rainfall is heavy, totalling around 540mm across the season with a monthly average of 180mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 9 to 14°C. Rainfall is heavy, totalling around 427mm across the season with a monthly average of 142mm. Expect around 6cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 11°
Feb 10°
Mar 12°
Apr 15°
May 20°
Jun 24°
Jul 26°
Aug 27°
Sep 24°
Oct 20°
Nov 16°
Dec 13°

The best time to visit Chālūs is during April, May and June, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 54mm per month. By contrast, August can be uncomfortably hot with highs reaching 28°C, while February is the coldest period with lows dropping to 9°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Chālūs 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
9 °C
12 °C
9 km/h
146 mm
1 cm
Feb
9 °C
12 °C
10 km/h
130 mm
5 cm
Mar
10 °C
14 °C
10 km/h
98 mm
1 cm
Apr
13 °C
17 °C
9 km/h
71 mm
0 cm
May
18 °C
22 °C
9 km/h
56 mm
0 cm
Jun
23 °C
26 °C
8 km/h
33 mm
0 cm
Jul
24 °C
27 °C
9 km/h
71 mm
0 cm
Aug
25 °C
28 °C
9 km/h
42 mm
0 cm
Sep Current
22 °C
25 °C
9 km/h
142 mm
0 cm
Oct
18 °C
21 °C
9 km/h
193 mm
0 cm
Nov
14 °C
17 °C
9 km/h
205 mm
2 cm
Dec
11 °C
14 °C
10 km/h
150 mm
0 cm
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Metric (°C, km/h)