Discovering the wonders of the Tassili n'Ajjer National Park
Discover the breathtaking Tassili n'Ajjer National Park in Algeria, home to ancient rock art and stunning landscapes. A must-visit UNESCO World Heritage Site.
Alger Weather in September
Alger in September sees high temperatures, with highs around 29°C (84°F) and overnight lows of 21°C (70°F). Overall excellent conditions make it one of the better months to visit.
Rainfall in Alger in September
Records from the past 30 years suggest around 5 days of rain, with 32 mm (1.3 in) average for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Alger in September
Alger has excellent weather in September, with days reaching 29°C (84°F) and nights cooling to 21°C (70°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.
Sunshine in Alger in September
There are approximately 267 hours of sunshine this month, resulting in mostly clear days.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Alger.
Alger Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
29°C (84°F)
Chance of Rain
16%
Precipitation
32 mm (1.3 in)
Rainy days
5 days
Humidity
66% *
Sunshine
267 hours *
Percentage Sunshine
*
* Data from: Algiers, Algeria (4 KM, 2 Miles).
Alger Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alger - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Alger typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 20°C (68°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Alger in September
Browse day-by-day weather records for Alger spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Alger historical weather extremes in September
Based on weather observations in Alger between 2000 and 2026, these are the recorded extremes during September.
- Alger recorded its highest September temperature of 43°C (109°F) on September 4, 2004.
- The lowest daytime temperature in September was 22°C (72°F), recorded on September 30, 2008.
- Alger registered its coldest September night on September 16, 2024, with temperatures dropping to 10°C (50°F).
Best Places in Algeria in September
Find out more about the weather in Algeria and which places have the best travel conditions in this month. See all of Algeria in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Alger 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). Some rain is possible, so pack something to handle light showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Alger in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Alger 3-Day Forecast
More climate data for Alger
Temperature Rainfall Sunshine Humidity
See the full Alger climate overview or explore weather in Algeria.
Popular in September
Where to go in September - average daytime high across popular destinations.
Beni Abbes
38°C (100°F) Djanet
35°C (95°F) Bechiar36°C (97°F) Ain Sefra31°C (88°F) Algiers29°C (84°F) Djelfa29°C (84°F) Alger29°C (84°F) Batna28°C (82°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Discovering the wonders of the Tassili n'Ajjer National Park
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