Climate Insights for Sanaa

The climate in Sanaa is temperate. The average annual temperature is 18°C and approximately 811mm of precipitation falls per year. August is the wettest month, receiving around 246mm of rainfall. Sanaa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, September, July. The coldest months are December, January, November, when temperatures can drop to 9°C.

Sanaa sees moderate temperature variation throughout the year, ranging from 9°C to 27°C. The warmest month is June, when average highs reach 27°C and the mean temperature sits around 21°C. December is the coolest month, with minimum temperatures around 9°C and an average of 14°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 2°C shift in average temperatures.

Sanaa is a moderately rainy area, receiving approximately 811mm of precipitation annually, which averages out to around 68mm per month. The wettest month is August, averaging 246mm of rainfall. July and April also tend to see above-average precipitation. The driest month is December, with just 5mm. That's 241mm less than August, 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.

Sanaa is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 8km/h in winter, 10km/h in spring, 12km/h in summer, 10km/h in autumn.

It is currently spring in Sanaa, which began on March 20, 2026. Sanaa 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 June at around 27°C, while the coldest stretch bottoms out in December near 9°C. Summer is next, beginning on June 21, 2026 — 90 days from now.

The best time to visit Sanaa is during February, March, June, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 34mm per month. By contrast, December can be quite cold with temperatures dropping to 9°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 Sanaa 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.