Bir el Ater, Algeria Climate
The warmest month is July, with an average high of 38°C; the coldest is January, with an average low of 3°C. A normal year brings 205 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 24
- Normal high
- 30°C
- Normal low
- 18°C
- Reanalysis high
- 35°Cin 2012
- Reanalysis low
- 13°Cin 2009
- Chance of a wet day
- 20%
- Daylight
- 12 h 05 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 14°C | 3°C | 23°C (2013) | -5°C (2005) | 22 mm | 3.1 |
| February | 16°C | 4°C | 28°C (2010) | -3°C (2012) | 14 mm | 2.8 |
| March | 20°C | 7°C | 31°C (2001) | -1°C (1993) | 25 mm | 3.1 |
| April | 24°C | 11°C | 34°C (2003) | 1°C (1995) | 21 mm | 3.0 |
| May | 29°C | 15°C | 41°C (2016) | 5°C (1991) | 19 mm | 3.1 |
| June | 34°C | 20°C | 43°C (1997) | 7°C (2006) | 9 mm | 3.0 |
| July | 38°C | 23°C | 44°C (2017) | 16°C (1991) | 3 mm | 0.0 |
| August | 37°C | 23°C | 44°C (2011) | 17°C (1995) | 9 mm | 3.1 |
| September | 32°C | 20°C | 41°C (1998) | 12°C (2018) | 24 mm | 6.0 |
| October | 26°C | 15°C | 36°C (2003) | 6°C (2018) | 19 mm | 3.1 |
| November | 19°C | 9°C | 30°C (2012) | 1°C (2005) | 21 mm | 3.0 |
| December | 15°C | 5°C | 24°C (2010) | -3°C (2014) | 19 mm | 3.1 |
| Year | 25°C | 13°C | 205 mm | 36 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
205 mm in a normal year, most in March.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Bir el Ater.
Days with a mean dew point of 18°C or more are rare here in every month.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 1°C | 67% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | 1°C | 60% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | 2°C | 53% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | 4°C | 47% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 7°C | 42% | 98% | 1% | 0% | 0% | 0% | 0% |
| June | 9°C | 36% | 96% | 4% | 0% | 0% | 0% | 0% |
| July | 10°C | 32% | 88% | 11% | 0% | 0% | 0% | 0% |
| August | 11°C | 35% | 70% | 27% | 3% | 0% | 0% | 0% |
| September | 12°C | 47% | 60% | 34% | 6% | 0% | 0% | 0% |
| October | 9°C | 53% | 85% | 13% | 1% | 0% | 0% | 0% |
| November | 5°C | 60% | 99% | 1% | 0% | 0% | 0% | 0% |
| December | 3°C | 68% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is July, with the sky 18 percent covered on average; the cloudiest is April, at 42 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is May, averaging 16.6 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 18, with 14 h 30 min of daylight; the shortest is Dec 18, with 9 h 49 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Bir el Ater in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.