Climate Chart of Niamey, Niger
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Niamey, Niger, the climate data describe 2013–2023. Monthly mean temperatures range from 23.8 °C in January to 34.6 °C in May, giving a broad sense of how the year's average warmth varies. Rainfall and sunshine also shift across the calendar: 4.97 mm/day of mean daily rainfall is recorded in August, while mean daily sunshine reaches 11.02 hours/day in May. These monthly averages are useful for planning, but they do not describe conditions on every day.
Climate overview
Temperature
The monthly mean temperature is lowest at 23.8 °C in January and highest at 34.6 °C in May. These are averages for each month, not daytime maximum temperatures, so they provide a broad temperature context rather than a forecast of afternoon heat. The unweighted mean of the monthly means is 29.4 °C; it summarizes the calendar-month averages without weighting them by the number of days in each month.
Rain
Mean daily rainfall peaks at 4.97 mm/day in August. For visitors around that monthly peak, packing rain protection is a sensible precaution, although the average does not tell you how often rain falls or guarantee wet weather on a particular day. The lowest monthly mean is 0.00 mm/day in January / November / December; this identifies an option for people prioritising lower average rainfall, not a promise of rain-free days. The unweighted mean of the monthly daily means is 0.82 mm/day, not a monthly rainfall total.
Sunshine
Mean daily sunshine duration is highest at 11.02 hours/day in May and lowest at 9.35 hours/day in August. These figures can help with planning outdoor time around the monthly averages, but sunshine duration is not the same as day length and does not guarantee clear skies on a given day. Across the calendar-month means, the unweighted average is 10.43 hours/day per day.
Best Travel Time Guide for Niamey, Niger: Ideal Seasons and Weather Insights
If your priority is cooler monthly average temperatures, January is the relevant option, with a monthly mean of 23.8 °C. This is a useful broad guide for choosing when to travel, but it does not predict daytime highs or the temperature on particular dates. For lower average rainfall, consider January / November / December, when mean daily rainfall is 0.00 mm/day; the average cannot rule out rain on individual days. If travelling in August, where the mean daily amount reaches 4.97 mm/day, include rain protection in your plans. These rainfall figures do not establish rain frequency.
For outdoor sightseeing planned around average sunshine, May has the highest mean daily sunshine duration at 11.02 hours/day, while August has the lowest at 9.35 hours/day. These are separate planning considerations rather than a combined best-time ranking: the figures describe average sunshine duration, not day length or the weather on any particular day.
Climate Data Overview for Niamey, Niger
Explore the comprehensive climate data for Niamey, Niger. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 23.8 | 0.00 | 0.00 | 10.01 |
| Feb | 26.5 | 0.01 | 0.00 | 10.22 |
| Mar | 30.9 | 0.03 | 0.00 | 10.45 |
| Apr | 33.7 | 0.06 | 0.00 | 10.85 |
| May | 34.6 | 0.22 | 0.00 | 11.02 |
| Jun | 32.7 | 0.97 | 0.00 | 10.94 |
| Jul | 29.9 | 2.12 | 0.00 | 10.55 |
| Aug | 27.6 | 4.97 | 0.00 | 9.35 |
| Sep | 29.3 | 1.24 | 0.00 | 10.21 |
| Oct | 30.9 | 0.17 | 0.00 | 10.61 |
| Nov | 28.5 | 0.00 | 0.00 | 10.70 |
| Dec | 24.9 | 0.00 | 0.00 | 10.25 |
| Average | 29.4 | 0.82 | 0.00 | 10.43 |
