Climate Insights for Sirjan

The climate in Sirjan is temperate. The average annual temperature is 17°C and approximately 210mm of precipitation falls per year. February is the wettest month, receiving around 54mm of rainfall. Sirjan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to 0°C. Light snow can occur between January and November.

Temperatures in Sirjan vary considerably across the year, with a 35°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 35°C and the mean temperature sits around 29°C. The coldest month is January, when overnight lows fall to 0°C and the daily average is 6°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Sirjan is a quite dry location, receiving approximately 210mm of precipitation annually, which averages out to around 18mm per month. The wettest month is February, averaging 54mm of rainfall. March and April also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 54mm less than February, 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. January is the snowiest month with approximately 4cm.

Sirjan 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 August, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently summer in Sirjan, which began on June 21, 2026. Sirjan 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 35°C, while the coldest stretch bottoms out in January near 0°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Sirjan is during April, May, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 11mm per month. By contrast, July can be uncomfortably hot with highs reaching 35°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.

The table below shows monthly climate averages for Sirjan 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.