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Constantine, Algeria climate
Csa Hot-summer Mediterranean
Constantine has a seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is August with an average daily high near 35°C, while the coldest is January averaging around 2°C at night. Precipitation totals about 512 mm a year and is strongly seasonal — December alone averages 69 mm while July barely receives 14 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsConstantine climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 13 | 16 | 20 | 25 | 31 | 35 | 35 | 29 | 25 | 18 | 14 |
| Avg temp (°C) | 7 | 8 | 11 | 13 | 18 | 23 | 26 | 27 | 22 | 18 | 12 | 9 |
| Avg low (°C) | 2 | 2 | 4 | 6 | 10 | 15 | 18 | 18 | 15 | 11 | 6 | 3 |
| Precipitation (mm) | 65 | 53 | 61 | 51 | 41 | 18 | 14 | 15 | 32 | 38 | 57 | 69 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 13 | 16 | 20 | 25 | 31 |
| Avg temp (°C) | 7 | 8 | 11 | 13 | 18 | 23 |
| Avg low (°C) | 2 | 2 | 4 | 6 | 10 | 15 |
| Precipitation (mm) | 65 | 53 | 61 | 51 | 41 | 18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 35 | 29 | 25 | 18 | 14 |
| Avg temp (°C) | 26 | 27 | 22 | 18 | 12 | 9 |
| Avg low (°C) | 18 | 18 | 15 | 11 | 6 | 3 |
| Precipitation (mm) | 14 | 15 | 32 | 38 | 57 | 69 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 9 | 9 | 7 | 6 | 3 | 2 | 3 | 5 | 6 | 7 | 10 |
| Days with high ≥ 32°C (days) | — | — | 0.0 | 0.2 | 2 | 9 | 18 | 18 | 6 | 2 | — | — |
| Days with low ≤ 0°C (days) | 5 | 4 | 2 | 0.3 | 0.0 | — | — | — | — | — | 0.4 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 9 | 9 | 7 | 6 | 3 |
| Days with high ≥ 32°C (days) | — | — | 0.0 | 0.2 | 2 | 9 |
| Days with low ≤ 0°C (days) | 5 | 4 | 2 | 0.3 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 3 | 5 | 6 | 7 | 10 |
| Days with high ≥ 32°C (days) | 18 | 18 | 6 | 2 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.4 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 56 | 54 | 53 | 46 | 33 | 22 | 27 | 43 | 47 | 53 | 57 |
| Clear days (≤ 30% cloud) | 8 | 7 | 8 | 8 | 11 | 16 | 22 | 19 | 12 | 11 | 8 | 7 |
| Partly cloudy days (30–70%) | 10 | 11 | 12 | 11 | 12 | 10 | 7 | 9 | 12 | 12 | 11 | 11 |
| Cloudy days (≥ 70%) | 13 | 11 | 11 | 11 | 9 | 4 | 2 | 3 | 7 | 8 | 11 | 13 |
| Relative humidity (%) | 81 | 79 | 75 | 72 | 65 | 56 | 47 | 48 | 63 | 68 | 75 | 81 |
| Wind speed (m/s) | 2.4 | 2.5 | 2.5 | 2.4 | 2.2 | 2.2 | 2.2 | 2.2 | 2.1 | 2.2 | 2.4 | 2.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 56 | 54 | 53 | 46 | 33 |
| Clear days (≤ 30% cloud) | 8 | 7 | 8 | 8 | 11 | 16 |
| Partly cloudy days (30–70%) | 10 | 11 | 12 | 11 | 12 | 10 |
| Cloudy days (≥ 70%) | 13 | 11 | 11 | 11 | 9 | 4 |
| Relative humidity (%) | 81 | 79 | 75 | 72 | 65 | 56 |
| Wind speed (m/s) | 2.4 | 2.5 | 2.5 | 2.4 | 2.2 | 2.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 22 | 27 | 43 | 47 | 53 | 57 |
| Clear days (≤ 30% cloud) | 22 | 19 | 12 | 11 | 8 | 7 |
| Partly cloudy days (30–70%) | 7 | 9 | 12 | 12 | 11 | 11 |
| Cloudy days (≥ 70%) | 2 | 3 | 7 | 8 | 11 | 13 |
| Relative humidity (%) | 47 | 48 | 63 | 68 | 75 | 81 |
| Wind speed (m/s) | 2.2 | 2.2 | 2.1 | 2.2 | 2.4 | 2.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Mohamed Boudiaf Intl, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.