Weather in Beirut in September 2025
Average weather
Average temperature in Beirut in September
The temperature in September is +28°C on average, with a range between a maximum of +31°C during the day and a minimum of +23°C at night.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +28°C to +28°C.
Is Beirut warm or cold in September?
Beirut is typically warm in September.
Maximum temperatures go down compared to the previous month from +29°C to +28°C. The minimum temperature also goes down from +24°C to +23°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Beirut, here is the comparison with other months:
Water temperature in Beirut in September
Water in Beirut in September is Very warm. It varies from +27°C to +29°C, with an average of +28°C. Note that the air temperature is lower than the water temperature, averaging around +28°C.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Beirut in September?
Climate in Beirut in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +29°C | +28°C | +25°C | ||||
| Min. temperature | ||||||
| +21°C | +19°C | +13°C | ||||
| Max. temperature | ||||||
| +34°C | +33°C | +37°C | ||||
| Rainfall | ||||||
| 2 mm | 9 mm | 62 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +29°C | +28°C | +26°C | ||||
| Humidity | ||||||
| 70% | 66% | 63% | ||||
| Air pressure | ||||||
| 1007 HPa | 1011 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 18 | 16 | 13 | ||||
| Cloudy days | ||||||
| 11 | 9 | 7 | ||||
| Rainy days | ||||||
| 2 | 5 | 7 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as great as in August. It’s getting colder in September. From +29°C in the day, the average maximum temperature lowers to +28°C. Prepare for more rain. Average rainfall goes from 2 mm to 9 mm. It feels drier, as humidity decreases from 70% to 66%. The average wind speed doesn’t change much during September, staying around 2 m/s. The days becoming less sunny, going from 18 sunny days in August to 16 in September.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Beirut is gradually increasing during September, going from 2 m/s to 4 m/s over the course of the month.
Rain
How was the weather last September in Beirut?
Climate Change over Years
The climate in Beirut in September has not changed much over the last 43 years.
The average temperature was the lowest in 1992 (+20°C) and the highest in 2019 (+24°C). The driest year was 1990 with only 593 mm of rainfall, and the wettest year was 2012 with 1496 mm.
FAQ
Is September a good time to visit Beirut?
Can you sunbathe in Beirut in September?
Can you swim in Beirut in September?
Is Beirut rainy in September?
Is it sunny in Beirut in September?
Monthly weather in Beirut
Source of the data
For this page, we’ve looked at the typical weather in Beirut, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.