Climate Insights for Najrān

The climate in Najrān is hot. The average annual temperature is 25°C and approximately 39mm of precipitation falls per year. April is the wettest month, receiving around 18mm 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 10°C.

Temperatures in Najrān vary considerably across the year, with a 28°C difference between the coldest and warmest months. July is the hottest month, with daytime highs reaching 38°C and an average of 32°C. January is the coolest month, with minimum temperatures around 10°C and an average of 18°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 39mm of precipitation annually, which averages out to around 3mm per month. The wettest month is April, averaging 18mm of rainfall. May and July also tend to see above-average precipitation. The driest month is December, 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 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 July, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, 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 1km/h gap between the calmest and windiest months.

It is currently summer in Najrān, which began on June 21, 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 38°C, while the coldest stretch bottoms out in January near 10°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.

The best time to visit Najrān is during January, February, March, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 1mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 38°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.