Constantine climate
Constantine (Algeria) has a hot-summer Mediterranean climate (Köppen Csa). The average temperature over the year is 16 °C61 °F, and about 730 mm29 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Constantine climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1254 | 236 | 745 | 963.8 | 2 |
| Feb | 1355 | 236 | 846 | 742.9 | 2 |
| Mar | 1661 | 541 | 1151 | 763.0 | 1 |
| Apr | 2068 | 745 | 1457 | 702.8 | 0 |
| May | 2576 | 1151 | 1864 | 552.2 | 0 |
| Jun | 3188 | 1560 | 2374 | 180.7 | 0 |
| Jul | 3596 | 1966 | 2781 | 90.3 | 0 |
| Aug | 3494 | 1966 | 2780 | 291.1 | 0 |
| Sep | 2983 | 1660 | 2272 | 562.2 | 0 |
| Oct | 2476 | 1254 | 1865 | 652.5 | 0 |
| Nov | 1763 | 745 | 1254 | 893.5 | 0 |
| Dec | 1356 | 439 | 847 | 943.7 | 1 |
| Year | 3596 | 236 | 1661 | 73029 | 6 |
“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 | 81% | 60% | 2.4 | 9:56 |
| Feb | 79% | 58% | 3.2 | 10:49 |
| Mar | 75% | 55% | 4.4 | 11:52 |
| Apr | 72% | 53% | 5.5 | 13:05 |
| May | 66% | 45% | 6.5 | 14:05 |
| Jun | 55% | 29% | 7.5 | 14:37 |
| Jul | 46% | 23% | 7.5 | 14:24 |
| Aug | 49% | 26% | 6.6 | 13:32 |
| Sep | 63% | 42% | 5.0 | 12:21 |
| Oct | 67% | 43% | 3.9 | 11:11 |
| Nov | 75% | 53% | 2.6 | 10:11 |
| Dec | 81% | 57% | 2.1 | 9:41 |
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 Constantine is like
The warmest month is July, with an average high of 35 °C96 °F and a low of 19 °C66 °F. The coldest is January, when highs average 12 °C54 °F and lows 2 °C36 °F. Seasons are strongly marked: the warmest month is on average 19.8 °C35.6 °F warmer than the coldest.
Annual precipitation is moderate at about 730 mm29 in. The wettest three-month stretch is November–January, which brings 38% of the annual total. Months with less than 20 mm0.8 in on average: June and July. The wettest month is January (96 mm3.8 in), the driest is July (9 mm0.3 in).
Relative humidity ranges from 46% in July to 81% in December. The clearest skies (lowest average cloud amount, 23%) are typical of July. Average wind speed near the ground ranges from 8 km/h (5 mph) in September to 9 km/h (6 mph) in February. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.
Best time to visit Constantine
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and September and October: average highs of 20 °C68 °F to 29 °C83 °F with 55 mm2.2 in to 70 mm2.8 in of precipitation per month.
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 Constantine
- Winter (December–February) — highs 1254 to 13 °C56 °F, lows 236 to 4 °C39 °F, about 88 mm3.5 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Spring (March–May) — highs 1661 to 25 °C76 °F, lows 541 to 11 °C51 °F, about 67 mm2.6 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 3188 to 35 °C96 °F, lows 1560 to 19 °C66 °F, about 18 mm0.7 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 1763 to 29 °C83 °F, lows 745 to 16 °C60 °F, about 70 mm2.8 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 Constantine compares
Compared with Algiers, about 318 km to the west, Constantine is on average 3.2 °C5.8 °F cooler and receives 14% more precipitation (730 mm29 in vs 642 mm25 in). The difference is largest in January (3.9 °C7 °F cooler).
Of the 37 places in Algeria covered by World Climates, Constantine is the 24th warmest by annual mean temperature and the 3rd 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: Livorno (Italy, Csa), Mustafakemalpaşa (Turkey, Csa) and Nilüfer (Turkey, Csa).
Nearby places
- Skikda 63 km · 19 °C67 °F · 617 mm24 in
- Guelma 73 km · 18 °C64 °F · 847 mm33 in
- Jijel 91 km · 20 °C68 °F · 651 mm26 in
- Aïn Beïda 94 km · 14 °C57 °F · 699 mm28 in
- Batna 98 km · 15 °C59 °F · 441 mm17 in
- Sétif 109 km · 14 °C57 °F · 590 mm23 in
- Khenchela 114 km · 14 °C58 °F · 467 mm18 in
- Annaba 119 km · 19 °C67 °F · 664 mm26 in
Frequently asked questions
What is the warmest month in Constantine?
July is the warmest month in Constantine, with an average high of 35 °C (96 °F) and an average low of 19 °C (66 °F).
What is the coldest month in Constantine?
January is the coldest month, with an average high of 12 °C (54 °F) and an average low of 2 °C (36 °F).
When does it rain the most in Constantine?
January is the wettest month with about 96 mm (3.8 in) of precipitation; July is the driest with about 9 mm (0.3 in).
What is the best time to visit Constantine?
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.