Climate Insights for Darreh Shahr

The climate in Darreh Shahr is warm and mild. The average annual temperature is 18°C and approximately 517mm of precipitation falls per year. March is the wettest month, receiving around 103mm of rainfall. Darreh Shahr 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, February, December, when temperatures can drop to 1°C.

Darreh Shahr has a wide annual temperature range, spanning 38°C from the coldest to warmest months. July is the hottest month, with daytime highs reaching 39°C and an average of 31°C. January is the coolest month, with minimum temperatures around 1°C and an average of 6°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Darreh Shahr is a relatively dry area, receiving approximately 517mm of precipitation annually, which averages out to around 43mm per month. The wettest month is March, averaging 103mm of rainfall. February and December also tend to see above-average precipitation. The driest month is July, with just 0mm. That's 103mm less than March, 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.

Darreh Shahr is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, 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 3km/h between the calmest and windiest months.

It is currently spring in Darreh Shahr, which began on March 20, 2026. Darreh Shahr 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 1°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Darreh Shahr is during April, May and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 38mm per month. By contrast, July can be uncomfortably hot with highs reaching 39°C, while January is the coldest period with lows dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Darreh Shahr 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. 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.