Chlef climate
Chlef (Algeria) has a hot-summer Mediterranean climate (Köppen Csa). The average temperature over the year is 20 °C68 °F, and about 562 mm22 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Chlef climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1661 | 642 | 1152 | 803.1 |
| Feb | 1864 | 643 | 1253 | 672.7 |
| Mar | 2170 | 847 | 1558 | 622.5 |
| Apr | 2576 | 1152 | 1864 | 672.6 |
| May | 2984 | 1558 | 2271 | 421.6 |
| Jun | 3494 | 1966 | 2780 | 110.4 |
| Jul | 38101 | 2272 | 3087 | 30.1 |
| Aug | 38100 | 2373 | 3086 | 110.4 |
| Sep | 3391 | 1967 | 2679 | 301.2 |
| Oct | 2882 | 1560 | 2271 | 481.9 |
| Nov | 2169 | 1050 | 1560 | 803.1 |
| Dec | 1763 | 744 | 1254 | 632.5 |
| Year | 38101 | 642 | 2068 | 56222 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 74% | 61% | 2.5 | 9:57 |
| Feb | 71% | 59% | 3.4 | 10:49 |
| Mar | 67% | 59% | 4.6 | 11:52 |
| Apr | 64% | 58% | 5.7 | 13:04 |
| May | 58% | 52% | 6.6 | 14:04 |
| Jun | 50% | 39% | 7.4 | 14:36 |
| Jul | 43% | 37% | 7.2 | 14:23 |
| Aug | 46% | 37% | 6.5 | 13:31 |
| Sep | 55% | 49% | 5.1 | 12:21 |
| Oct | 59% | 53% | 3.9 | 11:12 |
| Nov | 69% | 62% | 2.6 | 10:11 |
| Dec | 74% | 61% | 2.2 | 9:42 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Chlef is like
The warmest month is July, with an average high of 38 °C101 °F and a low of 22 °C72 °F. The coldest is January, when highs average 16 °C61 °F and lows 6 °C42 °F. Seasons are strongly marked: the warmest month is on average 19.5 °C35 °F warmer than the coldest.
Annual precipitation is moderate at about 562 mm22 in. The wettest three-month stretch is November–January, which brings 40% of the annual total. Months with less than 20 mm0.8 in on average: June–August. The wettest month is January (80 mm3.1 in), the driest is July (3 mm0.1 in).
Relative humidity ranges from 43% in July to 74% in December. The clearest skies (lowest average cloud amount, 37%) are typical of August. Average wind speed near the ground ranges from 8 km/h (5 mph) in October to 10 km/h (6 mph) in March. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.
Best time to visit Chlef
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March–May and October and November: average highs of 21 °C69 °F to 29 °C84 °F with 42 mm1.6 in to 80 mm3.1 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 38 °C101 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Chlef
- Winter (December–February) — highs 1661 to 18 °C64 °F, lows 642 to 7 °C44 °F, about 70 mm2.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2170 to 29 °C84 °F, lows 847 to 15 °C58 °F, about 57 mm2.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3494 to 38 °C101 °F, lows 1966 to 23 °C73 °F, about 8 mm0.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2169 to 33 °C91 °F, lows 1050 to 19 °C67 °F, about 52 mm2.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Chlef compares
Compared with Tiaret, about 88 km to the south, Chlef is on average 5.3 °C9.5 °F warmer and receives 9% less precipitation (562 mm22 in vs 614 mm24 in). The difference is largest in November (5.6 °C10.2 °F warmer).
Of the 37 places in Algeria covered by World Climates, Chlef is the 8th warmest by annual mean temperature and the 15th wettest by annual precipitation. See all of them on the Algeria climate page.
Places in other countries with the most similar temperature and rainfall pattern: Fes (Morocco, Csa), Taza (Morocco, Csa) and Beni Mellal (Morocco, Csa).
Nearby places
- Relizane 85 km · 20 °C69 °F · 557 mm22 in
- Tiaret 88 km · 15 °C58 °F · 614 mm24 in
- Mostaganem 115 km · 19 °C66 °F · 424 mm17 in
- Médéa 128 km · 14 °C57 °F · 559 mm22 in
- Mascara 138 km · 17 °C62 °F · 531 mm21 in
- Blida 138 km · 19 °C65 °F · 642 mm25 in
- Algiers 169 km · 19 °C67 °F · 642 mm25 in
- Saïda 183 km · 16 °C61 °F · 557 mm22 in
Frequently asked questions
What is the warmest month in Chlef?
July is the warmest month in Chlef, with an average high of 38 °C (101 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Chlef?
January is the coldest month, with an average high of 16 °C (61 °F) and an average low of 6 °C (42 °F).
When does it rain the most in Chlef?
January is the wettest month with about 80 mm (3.1 in) of precipitation; July is the driest with about 3 mm (0.1 in).
What is the best time to visit Chlef?
Judging by long-term averages, the most comfortable months are March–May and October and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 385 m, while Chlef lies at about 116 m. Temperatures on this page were therefore adjusted by +1.7 °C3.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.