Climate Insights for Nasiriyah

The climate in Nasiriyah is hot. The average annual temperature is 27°C and approximately 161mm of precipitation falls per year. November is the wettest month, receiving around 50mm of rainfall. Nasiriyah 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, December, February, when temperatures can drop to 8°C.

Nasiriyah has a wide annual temperature range, spanning 39°C from the coldest to warmest months. July is the hottest month, with daytime highs reaching 47°C and an average of 40°C. January is the coolest month, with minimum temperatures around 8°C and an average of 13°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 9°C shift in average temperatures.

Nasiriyah is a quite dry location, receiving approximately 161mm of precipitation annually, which averages out to around 13mm per month. The wettest month is November, averaging 50mm of rainfall. February and April also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 50mm 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.

Nasiriyah is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 6km/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. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 4km/h in winter, 4km/h in spring, 6km/h in summer, 4km/h in autumn.

It is currently summer in Nasiriyah, which began on June 21, 2026. Nasiriyah 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 47°C, while the coldest stretch bottoms out in January near 8°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Nasiriyah is during February, March and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 32mm per month. By contrast, July can be uncomfortably hot with highs reaching 47°C, while January is the coldest period with lows dropping to 8°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 Nasiriyah 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.