This is the short version of Nouakchott climate: monthly averages, with the monthly detail underneath. The gap between Jan and Sep is 8.6 C here: 19.9 C against 28.5 C. Precipitation peaks in Sep (1.52 mm/day) and bottoms out in May (0.00 mm/day), so a 2x difference between the two. Taken together that is roughly 149 mm of rain a year for the grid cell. Values come from a public open API; a successful result is cached so a later outage never blanks the page. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
Annual mean temperature 23.5 C
Warmest month Sep (28.5 C)
Coldest month Jan (19.9 C)
Wettest month Sep (1.52 mm/day)
All-time record high 36.5 C
All-time record low 12.3 C
Annual precipitation 150 mm / year
Coordinates 18.0858, -15.9785
Population 1,184,530
Average monthly temperature and rainfall in Nouakchott
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
19.9
0.06
29.1
12.3
Feb
19.9
0.08
31.2
13.2
Mar
20.8
0.49
34.6
14.5
Apr
20.8
0.02
34.3
16.4
May
21.9
0.00
35.6
17.2
Jun
24.0
0.06
36.3
18.5
Jul
26.0
0.53
36.5
21.3
Aug
27.4
1.46
33.6
23.5
Sep
28.5
1.52
35.7
24.4
Oct
27.2
0.60
35.3
20.7
Nov
24.2
0.08
33.0
17.6
Dec
21.5
0.00
30.3
13.6
What the Nouakchott climate table shows
Values are multi-decadal climatological averages for the 18.0858, -15.9785 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.
How much rain is 1.52 mm/day in a month?
Rain is recorded as a daily mean, so 1.52 mm/day is roughly 46 mm across a 30-day month.