Weather in Sanaa

Sanaa is in Yemen at 15.4°N. The 2001–2020 NASA POWER daily record describes a desert climate with almost no rain. July is the warmest month (average 23.2°C, high 29.6°C) and December is the coolest (average 14.7°C, low 6.5°C).

Rain is a year that totals only 35 mm of rain. The wettest month is April at 8 mm; the driest is June at 1 mm. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are May, August, and September.

When Sanaa gets wet

Sanaa is dry. The whole year adds up to 35 mm. April is the “wet” month at 8 mm; June drops to 1 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. April averages 2 such days; June averages 0.

How warm Sanaa gets

Sanaa has a 8.5°C gap between its coolest monthly average (14.7°C in December) and its warmest (23.2°C in July). That is a northern-hemisphere pattern.

Mean high across all twelve months is 26.5°C and mean low is 12.0°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

Distinctive months in Sanaa

April is the wettest month — 8 mm and 2 rainy days, with 37% humidity. June is the driest month, averaging only 1 mm across 0 rainy days. Highs sit near 29.7°C. July is the warmest month. Afternoon highs average 29.6°C and nights settle near 16.8°C, with 6 mm of rain.

September stands apart from the months beside it: 27.7°C / 14.5°C and 1 mm. October stands apart from the months beside it: 24.6°C / 10.3°C and 2 mm. December is the coolest month, with lows around 6.5°C and highs near 23.0°C. Rainfall is 2 mm.

Best months to visit Sanaa

The three months with the highest comfort score are May, August, and September: May (21.6°C average, 3 mm, 31% humidity); August (22.8°C average, 8 mm, 41% humidity); September (21.1°C average, 1 mm, 30% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is July. The coolest stretch is December.

How Sanaa compares inside Yemen

Sanaa is the only Yemen city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.