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Tlemcen, Algeria climate
BSk Cold semi-arid
Tlemcen has a seasonal mild-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is August with an average daily high near 95°F, while the coldest is January averaging around 39°F at night. Precipitation totals about 12 inches a year and is strongly seasonal — March alone averages 2.1 inches while July barely receives 0.11 inches.
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 countsTlemcen climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 62 | 64 | 68 | 72 | 79 | 87 | 94 | 95 | 86 | 80 | 70 | 63 |
| Avg temp (°F) | 50 | 53 | 56 | 60 | 66 | 73 | 80 | 80 | 74 | 67 | 59 | 53 |
| Avg low (°F) | 39 | 40 | 43 | 47 | 52 | 59 | 65 | 66 | 60 | 55 | 47 | 41 |
| Precipitation (in) | 0.9 | 1.3 | 2.1 | 1.5 | 0.9 | 0.4 | 0.1 | 0.2 | 1.0 | 1.0 | 1.0 | 1.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 62 | 64 | 68 | 72 | 79 | 87 |
| Avg temp (°F) | 50 | 53 | 56 | 60 | 66 | 73 |
| Avg low (°F) | 39 | 40 | 43 | 47 | 52 | 59 |
| Precipitation (in) | 0.9 | 1.3 | 2.1 | 1.5 | 0.9 | 0.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 94 | 95 | 86 | 80 | 70 | 63 |
| Avg temp (°F) | 80 | 80 | 74 | 67 | 59 | 53 |
| Avg low (°F) | 65 | 66 | 60 | 55 | 47 | 41 |
| Precipitation (in) | 0.1 | 0.2 | 1.0 | 1.0 | 1.0 | 1.3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 5 | 5 | 5 | 4 | 1 | 0.6 | 1 | 3 | 4 | 5 | 4 |
| Days with high ≥ 90°F (days) | — | 0.0 | 0.2 | 0.4 | 2 | 8 | 18 | 20 | 7 | 2 | — | — |
| Days with low ≤ 32°F (days) | 3 | 1 | 0.2 | 0.0 | — | — | — | — | — | — | 0.1 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 5 | 5 | 5 | 4 | 1 |
| Days with high ≥ 90°F (days) | — | 0.0 | 0.2 | 0.4 | 2 | 8 |
| Days with low ≤ 32°F (days) | 3 | 1 | 0.2 | 0.0 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.6 | 1 | 3 | 4 | 5 | 4 |
| Days with high ≥ 90°F (days) | 18 | 20 | 7 | 2 | — | — |
| Days with low ≤ 32°F (days) | — | — | — | — | 0.1 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 48 | 48 | 48 | 49 | 45 | 32 | 29 | 33 | 40 | 44 | 46 | 47 |
| Clear days (≤ 30% cloud) | 10 | 10 | 10 | 9 | 11 | 17 | 18 | 17 | 14 | 13 | 11 | 10 |
| Partly cloudy days (30–70%) | 12 | 11 | 12 | 12 | 12 | 9 | 10 | 11 | 11 | 11 | 10 | 13 |
| Cloudy days (≥ 70%) | 8 | 8 | 9 | 9 | 8 | 3 | 2 | 4 | 6 | 8 | 8 | 8 |
| Relative humidity (%) | 72 | 71 | 69 | 68 | 65 | 61 | 56 | 57 | 65 | 66 | 70 | 72 |
| Wind speed (mph) | 7.3 | 7.3 | 7.0 | 6.9 | 6.3 | 5.9 | 5.5 | 5.6 | 6.0 | 5.9 | 7.2 | 7.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 48 | 48 | 48 | 49 | 45 | 32 |
| Clear days (≤ 30% cloud) | 10 | 10 | 10 | 9 | 11 | 17 |
| Partly cloudy days (30–70%) | 12 | 11 | 12 | 12 | 12 | 9 |
| Cloudy days (≥ 70%) | 8 | 8 | 9 | 9 | 8 | 3 |
| Relative humidity (%) | 72 | 71 | 69 | 68 | 65 | 61 |
| Wind speed (mph) | 7.3 | 7.3 | 7.0 | 6.9 | 6.3 | 5.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 29 | 33 | 40 | 44 | 46 | 47 |
| Clear days (≤ 30% cloud) | 18 | 17 | 14 | 13 | 11 | 10 |
| Partly cloudy days (30–70%) | 10 | 11 | 11 | 11 | 10 | 13 |
| Cloudy days (≥ 70%) | 2 | 4 | 6 | 8 | 8 | 8 |
| Relative humidity (%) | 56 | 57 | 65 | 66 | 70 | 72 |
| Wind speed (mph) | 5.5 | 5.6 | 6.0 | 5.9 | 7.2 | 7.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Oujda, a weather station, about 57 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.