Climate averages 1991–2020
Arlit weather
by month.
See how the year changes. June has the highest average daily maximum; November (tied with March) has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: JanuaryDecember
Long-term climate patterns, not a forecast for a particular trip.
Across the year Arlit averages a daytime high of 36.1°C and a nighttime low of 20.8°C, with about 29 mm of rain on roughly 9 days. June is the warmest month (average high 41.9°C) and January the coolest (27.2°C). August is the wettest month with 16 mm; November (tied with March) is the driest with under 1 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): January and December. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Arlit
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Arlit climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.2°C10.8°C | 10.8°C | 0.1 | 0.0 | 11.111 h |
| February | 30.4°C13.5°C | 13.5°C | 0.1 | 0.0 | 11.512 h |
| March | 34.8°C17.8°C | 17.8°C | 0 | 0.0 | 12.012 h |
| April | 39.3°C22.5°C | 22.5°C | 0.2 | 0.0 | 12.613 h |
| May | 41.7°C26.3°C | 26.3°C | 1.0 | 0.4 | 13.013 h |
| June | 41.9°C27.7°C | 27.7°C | 2.0 | 0.7 | 13.213 h |
| July | 40.3°C27.4°C | 27.4°C | 5.4 | 1.8 | 13.113 h |
| August | 39.3°C26.8°C | 26.8°C | 16 | 4.4 | 12.813 h |
| September | 40.0°C25.8°C | 25.8°C | 4.4 | 1.6 | 12.312 h |
| October | 37.5°C22.3°C | 22.3°C | 0.3 | 0.1 | 11.712 h |
| November | 32.5°C16.2°C | 16.2°C | 0 | 0.0 | 11.311 h |
| December | 28.4°C12.1°C | 12.1°C | 0.1 | 0.0 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- AgadezNiger · 206 kmHigh 35.5°C · Low 21.7°C · 66 mm rain a year
- TahouaNiger · 484 kmHigh 35.8°C · Low 21.6°C · 194 mm rain a year
- TamanghassetAlgeria · 490 kmHigh 28.8°C · Low 15.1°C · 24 mm rain a year
- ZinderNiger · 574 kmHigh 34.5°C · Low 20.3°C · 268 mm rain a year
- MaradiNiger · 583 kmHigh 34.6°C · Low 21.1°C · 289 mm rain a year
- Birni N KonniNiger · 595 kmHigh 35.7°C · Low 23.0°C · 297 mm rain a year
- KatsinaNigeria · 639 kmHigh 33.3°C · Low 20.5°C · 427 mm rain a year
- SokotoNigeria · 671 kmHigh 35.1°C · Low 23.2°C · 393 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+1, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 18.70°, 7.40° (4 km from the city centre). Rain comes from the 0.25° cell at 18.75°, 7.50°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.