Climate Insights for Najrān

The climate in Najrān is warm and mild. The average annual temperature is 23°C and approximately 57mm of precipitation falls per year. April is the wettest month, receiving around 17mm of rainfall. Najrān 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 9°C.

Temperatures in Najrān vary considerably across the year, with a 26°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 28°C. January is the coolest month, with minimum temperatures around 9°C and an average of 16°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 5°C shift in average temperatures.

Najrān is a quite dry location, receiving approximately 57mm of precipitation annually, which averages out to around 5mm per month. The wettest month is April, averaging 17mm of rainfall. May and July also tend to see above-average precipitation. The driest month is June, with just 0mm. 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.

Najrān is moderately windy, with an average annual wind speed of 20km/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 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in December, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 17km/h in winter, 19km/h in spring, 23km/h in summer, 20km/h in autumn.

It is currently spring in Najrān, which began on March 20, 2026. Najrān 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 9°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Najrān is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 4mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 35°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Najrān 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.