Climate Insights for Diyadin

The climate in Diyadin is cool. The average annual temperature is 6°C and approximately 709mm of precipitation falls per year. Diyadin receives a notable amount of rainfall throughout the year, including during its driest month. Diyadin is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to -14°C. Diyadin experiences heavy snowfall, typically from January through December.

Diyadin has a wide annual temperature range, spanning 40°C from the coldest to warmest months. The warmest month is August, when average highs reach 26°C and the mean temperature sits around 19°C. The coldest month is January, when overnight lows fall to -14°C and the daily average is -8°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.

Diyadin is a relatively dry area, receiving approximately 709mm of precipitation annually, which averages out to around 59mm per month. The wettest month is May, averaging 97mm of rainfall. April and March also tend to see above-average precipitation. The driest month is September, with just 31mm. That's 66mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Diyadin receives heavy snowfall, accumulating around 286cm annually from January through December. The snowiest month is March, with approximately 65cm. Winter travel should account for significant snow cover.

Diyadin is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 1km/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.

It is currently summer in Diyadin, which began on June 21, 2026. Diyadin 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 26°C, while the coldest stretch bottoms out in January near -14°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Diyadin is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 49mm per month. By contrast, January can be quite cold with temperatures dropping to -14°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 Diyadin 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.