Sanaa weather in September
In September, Sanaa has an average high of 28 °C82 °F and an average low of 14 °C58 °F, with about 1 mm0.0 in of precipitation. It is the 5th warmest month of the year and ranks 9th for precipitation.
How September compares with other months
Compared with August, September is 1.8 °C3.2 °F cooler on average and drier by 7 mm0.3 in. Compared with October, September is 4.1 °C7.4 °F warmer on average. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 30% and the average cloud amount 49%.
Is September a good time to visit Sanaa?
Yes — September is one of the most comfortable months to visit Sanaa by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in September
For Sanaa in September, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Sanaa | 2882 | 1458 | 10.0 |
| Dhamar | 2781 | 1254 | 90.3 |
| Al Hudaydah | 39102 | 3085 | 190.7 |
| Ibb | 3086 | 1661 | 261.0 |
| Taiz | 3087 | 2067 | 451.8 |
| Najran | 3596 | 2170 | 00.0 |
| Jizan | 3698 | 3087 | 130.5 |
| Sabya | 3697 | 3086 | 130.5 |
| Aden | 3596 | 2985 | 230.9 |
Nearby places that are more than 1 °C1.8 °F warmer in September: Al Hudaydah, Ibb, Taiz and Najran; cooler: Dhamar.
Other months in Sanaa
- January23 °C74 °F / 7 °C44 °F
- February25 °C77 °F / 8 °C47 °F
- March26 °C79 °F / 11 °C52 °F
- April27 °C81 °F / 13 °C55 °F
- May28 °C83 °F / 15 °C59 °F
- June30 °C86 °F / 16 °C62 °F
- July30 °C85 °F / 17 °C62 °F
- August29 °C84 °F / 16 °C62 °F
- September28 °C82 °F / 14 °C58 °F
- October24 °C75 °F / 10 °C50 °F
- November23 °C73 °F / 7 °C45 °F
- December22 °C72 °F / 6 °C42 °F
Frequently asked questions
How warm is Sanaa in September?
In September the average high in Sanaa is 28 °C (82 °F) and the average low is 14 °C (58 °F).
Does it rain a lot in Sanaa in September?
On average about 1 mm (0.0 in) of precipitation falls in September; it ranks 9th of the 12 months.
Is September the warmest month in Sanaa?
No. The warmest month in Sanaa is June, with an average high of 30 °C (86 °F). The coldest month is December, with an average low of 6 °C (42 °F).
How long is the day in Sanaa in September?
In the middle of September the day in Sanaa lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Sanaa in September?
The average relative humidity in September is about 30%. This is a long-term average for the whole day.
How cloudy is Sanaa in September?
On average about 49% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 2,320 m, while Sanaa lies at about 2,253 m. Temperatures on this page were therefore adjusted by +0.4 °C0.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.