Djelfa climate
Djelfa (Algeria) has a cold semi-arid climate (Köppen BSk). The average temperature over the year is 15 °C60 °F, and about 288 mm11 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Djelfa climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1050 | −131 | 540 | 291.1 | 13 |
| Feb | 1253 | 032 | 642 | 200.8 | 11 |
| Mar | 1661 | 337 | 1049 | 230.9 | 4 |
| Apr | 2169 | 644 | 1456 | 321.3 | 0 |
| May | 2678 | 1151 | 1865 | 251.0 | 0 |
| Jun | 3289 | 1661 | 2475 | 110.4 | 0 |
| Jul | 3697 | 2068 | 2883 | 70.3 | 0 |
| Aug | 3594 | 2068 | 2781 | 190.7 | 0 |
| Sep | 2883 | 1559 | 2271 | 331.3 | 0 |
| Oct | 2373 | 1050 | 1662 | 371.5 | 0 |
| Nov | 1559 | 439 | 949 | 281.1 | 1 |
| Dec | 1151 | 133 | 642 | 251.0 | 8 |
| Year | 3697 | −131 | 1560 | 28811 | 38 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 72% | 43% | 3.1 | 10:04 |
| Feb | 67% | 43% | 4.1 | 10:53 |
| Mar | 60% | 44% | 5.4 | 11:53 |
| Apr | 54% | 42% | 6.4 | 13:01 |
| May | 47% | 41% | 7.3 | 13:58 |
| Jun | 36% | 35% | 7.9 | 14:28 |
| Jul | 28% | 37% | 7.7 | 14:16 |
| Aug | 32% | 39% | 6.9 | 13:27 |
| Sep | 46% | 45% | 5.6 | 12:20 |
| Oct | 54% | 39% | 4.6 | 11:15 |
| Nov | 67% | 40% | 3.4 | 10:18 |
| Dec | 75% | 43% | 2.8 | 9:50 |
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 Djelfa is like
The warmest month is July, with an average high of 36 °C97 °F and a low of 20 °C68 °F. The coldest is January, when highs average 10 °C50 °F and lows −1 °C31 °F. Seasons are strongly marked: the warmest month is on average 23.5 °C42.4 °F warmer than the coldest.
It is dry, with about 288 mm11 in of precipitation per year. The wettest three-month stretch is September–November, which brings 34% of the annual total. Months with less than 20 mm0.8 in on average: February and June–August. The wettest month is October (37 mm1.5 in), the driest is July (7 mm0.3 in).
Relative humidity ranges from 28% in July to 75% in December. The clearest skies (lowest average cloud amount, 35%) are typical of June. Average wind speed near the ground ranges from 10 km/h (6 mph) in August to 14 km/h (9 mph) in March. Daylight lasts from about 9.8 hours in December to 14.5 hours in June.
Best time to visit Djelfa
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and September and October: average highs of 21 °C69 °F to 28 °C83 °F with 25 mm1.0 in to 37 mm1.5 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 10 °C50 °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 Djelfa
- Winter (December–February) — highs 1050 to 12 °C53 °F, lows −131 to 1 °C33 °F, about 25 mm1.0 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1661 to 26 °C78 °F, lows 337 to 11 °C51 °F, about 27 mm1.0 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3289 to 36 °C97 °F, lows 1661 to 20 °C68 °F, about 12 mm0.5 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 1559 to 28 °C83 °F, lows 439 to 15 °C59 °F, about 33 mm1.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How Djelfa compares
Compared with Blida, about 204 km to the north, Djelfa is on average 3.2 °C5.7 °F cooler and receives 55% less precipitation (288 mm11 in vs 642 mm25 in). The difference is largest in December (5.7 °C10.3 °F cooler).
Of the 37 places in Algeria covered by World Climates, Djelfa is the 28th warmest by annual mean temperature and the 29th 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: Albacete (Spain, BSk), Parla (Spain, BSk) and Alcalá de Henares (Spain, BSk).
Nearby places
- Bou Saâda 102 km · 18 °C65 °F · 283 mm11 in
- Laghouat 104 km · 18 °C65 °F · 163 mm6.4 in
- MSila 163 km · 19 °C66 °F · 328 mm13 in
- Médéa 183 km · 14 °C57 °F · 559 mm22 in
- Tiaret 193 km · 15 °C58 °F · 614 mm24 in
- El Achir 198 km · 14 °C58 °F · 534 mm21 in
- Blida 204 km · 19 °C65 °F · 642 mm25 in
- Bordj Bou Arreridj 207 km · 15 °C58 °F · 603 mm24 in
Frequently asked questions
What is the warmest month in Djelfa?
July is the warmest month in Djelfa, with an average high of 36 °C (97 °F) and an average low of 20 °C (68 °F).
What is the coldest month in Djelfa?
January is the coldest month, with an average high of 10 °C (50 °F) and an average low of -1 °C (31 °F).
When does it rain the most in Djelfa?
October is the wettest month with about 37 mm (1.5 in) of precipitation; July is the driest with about 7 mm (0.3 in).
What is the best time to visit Djelfa?
Judging by long-term averages, the most comfortable months are April and May and September and October.
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.