Beirut Weather in September

Beirut in September sees high temperatures, with highs around 30°C (86°F) and overnight lows of 21°C (70°F). With just 8.7 mm (0.3 in) of rainfall on average, rain is rarely an issue.

Rainfall in Beirut in September

You can expect rain on roughly a single day based on historical data, averaging 8.7 mm (0.3 in) for the month. Any rain that does arrive tends to come in a single sharp spell rather than prolonged drizzle.

Temperature in Beirut in September

September is a good time to be in Beirut. Days are perfect, reaching 30°C (86°F), with nights around 21°C (70°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Beirut in September

The days are predominantly sunny, with an estimated total of around 288 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Beirut in September

Wind speeds average 2 m/s (4 knots) during September. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.

Average water temperature in September

The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

If you prefer enjoying temperate temperatures and rain-free days, April, May, June, October and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Lebanon, check out our Beirut's climate page.

Beirut Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 30°C (86°F)  

Water Temperature 28°C (82°F)  

Chance of Rain 2%  

Precipitation 8.7 mm (0.3 in)  

Rainy days a single day  

Humidity 65%  

Windspeed 2 m/s (4 knots)  

Sunshine 288 hours  

Percentage Sunshine  

Daily Historical Temperatures

42-year average (1977-2025)

Based on our historical records, temperatures in Beirut typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows typically ranging from 23°C (73°F) to 25°C (77°F).

Average temperatures in September

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Daily Historical Precipitation

42-year average (1977-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

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Historical weather for Beirut in September

Browse day-by-day weather records for Beirut spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Beirut historical weather extremes in September

Based on weather observations in Beirut between 1993 and 2025, these are the recorded extremes during September.

• The hottest September day on record in Beirut reached 37°C (99°F) (September 29, 1999).
• Beirut experienced its chilliest September day on September 28, 1997, reaching only 26°C (79°F).
• The lowest overnight temperature recorded in September was 17°C (63°F) (September 28, 1997).

What to Wear in Beirut in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Beirut in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Lebanon, check out our Beirut's climate page.

More climate data for Beirut

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Beirut climate overview or explore weather in Lebanon.