Climate averages 1991–2020

Niamey weather
in July.

A very hot, moderately wet month: the 7th warmest and the 11th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 34.8°C Daytime mean, July
Average low 25.4°C Night-time mean, July
Rainfall 61 mm 11 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Niamey · average highYear overview

July is a very hot month in Niamey: daytime highs average 34.8°C and nights cool to about 25.4°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 61 mm of rain on roughly 11 days, which makes July a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 50 min on an average July day.

The nearest other city in this atlas is Dosso (128 km away). In July its highs average 33.7°C, 1.1°C cooler than Niamey, with 75 mm of rain.

Among the 8 cities listed in Niger, Niamey ranks 4th of 8 for the warmest July highs and 4th of 8 for the driest July (rainfall, lowest first). The mean July high of those 8 cities is 35.7°C; Niamey is 0.9°C cooler than that mean.

From July to August, average highs fall by 2.6°C to 32.2°C, and monthly rainfall rises from 61 mm to 122 mm.

The annual picture

July in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 1015202530354045 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Niamey climate table

1991–2020
Monthly climate averages for Niamey, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 31.6°C15.8°C15.8°C00.011.411 h
February 34.7°C18.0°C18.0°C0.10.011.712 h
March 38.4°C21.3°C21.3°C1.00.412.012 h
April 40.8°C25.1°C25.1°C1.90.612.412 h
May 40.5°C27.9°C27.9°C8.32.312.713 h
June 38.3°C27.3°C27.3°C215.112.913 h
July, selected 34.8°C25.4°C25.4°C6110.712.813 h
August 32.2°C24.1°C24.1°C12215.212.613 h
September 34.5°C24.7°C24.7°C456.512.212 h
October 37.4°C24.2°C24.2°C8.81.911.812 h
November 36.0°C19.2°C19.2°C00.011.512 h
December 32.7°C16.5°C16.5°C00.011.311 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

July in nearby cities

Distance from Niamey

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Niamey) is explained once on the Niamey year overview and on the Sources, method and limits page.