Derna Weather in September
September in Derna sees daytime temperatures around 31°C (88°F) and lows of 21°C (70°F) at night. The excellent weather makes it a good time to visit.
Rainfall in Derna in September
Historically, approximately a single day this month are expected to have rain, averaging 5.9 mm (0.2 in). On the rare occasion it rains, expect a brief, moderate shower rather than a heavy downpour.
Temperature in Derna in September
September in Derna is generally excellent, with days reaching 31°C (88°F) and nights settling around 21°C (70°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.
Sunshine in Derna in September
There are approximately 237 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Derna in September
Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.
Average water temperature in September
At 25°C (77°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, April, May, October, November and December typically offer the best weather for Derna.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Libya, check out our Derna's climate page.
Derna Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
31°C (88°F)
Water Temperature
25°C (77°F)
Chance of Rain
4%
Precipitation
5.9 mm (0.2 in)
Rainy days
a single day
Humidity
75%
Windspeed
4 m/s (8 knots)
Sunshine
237 hours
Percentage Sunshine
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Derna typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows typically ranging from 20°C (68°F) to 22°C (72°F).
Average temperatures in September
Historical weather for Derna in September
Browse day-by-day weather records for Derna spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Derna historical weather extremes in September
Our historical data for Derna spans 2004 to 2025, revealing these weather extremes.
- The warmest day in September was on September 17, 2009, with a maximum of 39°C (102°F).
- The coldest September day was on September 7, 2004, with a maximum of 19°C (66°F).
- Derna registered its coldest September night on September 25, 2006, with temperatures dropping to 13°C (55°F).
Best Places in Libya in September
Find out more about the weather in Libya and which places have the best travel conditions in this month. See all of Libya in September →
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unpleasant
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What to Wear in Derna in September
Warm but pleasant conditions in Derna in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Derna in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Libya, check out our Derna's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Derna climate overview or explore weather in Libya.
