Beirut weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: April – June, September – November
What is the weather like in Beirut in September?
In September, Beirut is hot: daytime highs average 29 °C, and even at night it stays warm at around 21 °C. The sea averages 28.1 °C – lovely and warm for swimming. With around 10 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is an excellent month for a holiday in Beirut.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 78 | 88 | 95 |
| Day | 31° | 29° | 26° |
| Night | 23° | 21° | 18° |
| Sea | 29° | 28° | 26° |
| Sun | 11 h | 10 h | 8 h |
| Rain days | 0 | 1 | 5 |
More details for September
- Daylight
- 12 h 26 min06:20 – 18:46
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 18 daysdew point 18 °C or moreAll months
- Wind
- 13 km/haverage daily peakAll months
- Cloud cover
- 15 %on averageAll months
- Hot days
- 8 days30 °C or moreAll months
- Time zone
- UTC+3Asia/Beirut
How the score comes together
- Temperatureweight 50 %75 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Beirut in September: quick answers
Is Beirut hot in September?
Yes. In September, Beirut is hot: daytime highs average 29 °C and nights stay around 21 °C. On about 8 days the thermometer climbs to 30 °C or more.
Can you swim in Beirut in September?
Yes. In September the sea averages 28.1 °C – lovely and warm for swimming.
Does it rain much in Beirut in September?
It hardly ever rains.
Beirut month by month
The whole year in BeirutAll destinations: LebanonWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences