Climate Insights for Behbahān

The climate in Behbahān is hot. The average annual temperature is 26°C and approximately 450mm of precipitation falls per year. December is the wettest month, receiving around 91mm of rainfall. Behbahān 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 7°C.

Behbahān has a wide annual temperature range, spanning 38°C from the coldest to warmest months. July is the hottest month, with daytime highs reaching 45°C and an average of 38°C. January is the coolest month, with minimum temperatures around 7°C and an average of 13°C. On average, daily temperatures fluctuate by about 15°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Behbahān is a relatively dry area, receiving approximately 450mm of precipitation annually, which averages out to around 38mm per month. The wettest month is December, averaging 91mm of rainfall. January and November also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 91mm less than December, 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.

Behbahān 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 12km/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. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 8km/h in winter, 10km/h in spring, 11km/h in summer, 9km/h in autumn.

It is currently summer in Behbahān, which began on June 21, 2026. Behbahān 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 45°C, while the coldest stretch bottoms out in January near 7°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Behbahān is during March, April and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 61mm per month. By contrast, July can be uncomfortably hot with highs reaching 45°C, while January is the coldest period with lows dropping to 7°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 Behbahān 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.