A consolidated reference for Najran climate: monthly averages, rebuilt from public data on a schedule. Expect 17.3 C at the coldest (Dec) and 31.3 C at the warmest (Jul) — a 14.0 C spread. Expect a wet season rather than rain year-round: Apr brings 0.22 mm/day against 0.01 mm/day in Jun. Taken together that is roughly 22 mm of rain a year for the grid cell. The same build that regenerates the sitemap refreshes these values, and unchanged pages are left untouched. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 24.7 C
Warmest month Jul (31.3 C)
Coldest month Dec (17.3 C)
Wettest month Apr (0.22 mm/day)
All-time record high 41.0 C
All-time record low 2.8 C
Annual precipitation 22 mm / year
Coordinates 17.49326, 44.12766
Population 505,652
Average monthly temperature and rainfall in Najran
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
17.6
0.03
33.9
3.5
Feb
20.1
0.02
35.6
4.9
Mar
23.3
0.04
37.8
8.2
Apr
26.0
0.22
37.5
13.0
May
28.4
0.11
39.3
16.0
Jun
30.2
0.01
40.6
18.1
Jul
31.3
0.10
40.9
20.7
Aug
30.7
0.09
41.0
20.5
Sep
27.8
0.01
38.9
15.5
Oct
22.8
0.04
34.8
11.4
Nov
19.9
0.02
33.0
7.5
Dec
17.3
0.02
32.5
2.8
What the Najran climate table shows
Values are multi-decadal climatological averages for the 17.49326, 44.12766 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
How much rain is 0.22 mm/day in a month?
Rain is recorded as a daily mean, so 0.22 mm/day is roughly 7 mm across a 30-day month.
Does Najran get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.