Beirut weather in September
In September, Beirut has an average high of 31 °C88 °F and an average low of 24 °C75 °F, with about 5 mm0.2 in of precipitation. It is the 3rd warmest month of the year and ranks 9th for precipitation.
How September compares with other months
Compared with August, September is 1.5 °C2.7 °F cooler on average. Compared with October, September is 2.7 °C4.9 °F warmer on average and drier by 18 mm0.7 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 63% and the average cloud amount 21%.
Is September a good time to visit Beirut?
September is not among the most comfortable months by our comfort score: it is hot (average high 31 °C88 °F). The most comfortable months in Beirut are March–May and October and November.
What to wear in September
For Beirut in September, pack very light, breathable clothing, a sun hat and plenty of water.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Beirut | 3188 | 2475 | 50.2 |
| Sidon | 3595 | 2170 | 30.1 |
| Tripoli | 2781 | 2679 | 100.4 |
| Tyre | 2781 | 2678 | 60.3 |
| Damascus | 3492 | 1864 | 20.1 |
| Tartus | 2781 | 2679 | 170.7 |
| Haifa | 2984 | 2374 | 50.2 |
| Homs | 3493 | 1865 | 60.2 |
| Irbid | 3391 | 1660 | 10.1 |
Nearby places that are more than 1 °C1.8 °F cooler: Damascus, Haifa, Homs and Irbid.
Other months in Beirut
- January16 °C62 °F / 11 °C52 °F
- February17 °C63 °F / 12 °C53 °F
- March20 °C68 °F / 13 °C56 °F
- April23 °C74 °F / 16 °C60 °F
- May27 °C81 °F / 20 °C67 °F
- June30 °C87 °F / 23 °C73 °F
- July32 °C90 °F / 25 °C77 °F
- August33 °C91 °F / 25 °C77 °F
- September31 °C88 °F / 24 °C75 °F
- October28 °C82 °F / 21 °C70 °F
- November23 °C73 °F / 17 °C63 °F
- December19 °C66 °F / 13 °C56 °F
Frequently asked questions
How warm is Beirut in September?
In September the average high in Beirut is 31 °C (88 °F) and the average low is 24 °C (75 °F).
Does it rain a lot in Beirut in September?
On average about 5 mm (0.2 in) of precipitation falls in September; it ranks 9th of the 12 months.
Is September the warmest month in Beirut?
No. The warmest month in Beirut is August, with an average high of 33 °C (91 °F). The coldest month is January, with an average low of 11 °C (52 °F).
How long is the day in Beirut in September?
In the middle of September the day in Beirut lasts about 12.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Beirut in September?
The average relative humidity in September is about 63%. This is a long-term average for the whole day.
How cloudy is Beirut in September?
On average about 21% 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 452 m, while Beirut lies at about 40 m. Temperatures on this page were therefore adjusted by +2.7 °C4.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.