Everything below is collected in one spot so you do not have to cross-check Dubai climate: monthly averages by hand. The gap between Jan and Aug is 15.3 C here: 20.1 C against 35.4 C. Precipitation peaks in Jan (0.55 mm/day) and bottoms out in Jul (0.03 mm/day), so a 18.3x difference between the two. Taken together that is roughly 84 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. Exact monthly values are in the table; links below cover adjacent locations and years.
Annual mean temperature 28.2 C
Warmest month Aug (35.4 C)
Coldest month Jan (20.1 C)
Wettest month Jan (0.55 mm/day)
All-time record high 44.6 C
All-time record low 11.7 C
Annual precipitation 84 mm / year
Coordinates 25.0772, 55.3093
Population 3,790,000
Average monthly temperature and rainfall in Dubai
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
20.1
0.55
27.9
13.0
Feb
20.8
0.27
32.6
11.7
Mar
23.3
0.51
35.4
15.4
Apr
26.9
0.30
38.5
18.0
May
30.7
0.14
40.5
22.2
Jun
33.1
0.12
43.7
25.1
Jul
35.0
0.03
44.6
27.6
Aug
35.4
0.03
44.3
29.5
Sep
33.5
0.08
42.4
27.4
Oct
30.7
0.03
38.3
23.1
Nov
26.5
0.27
34.7
19.4
Dec
22.5
0.44
31.3
15.3
What the Dubai climate table shows
Values are multi-decadal climatological averages for the 25.0772, 55.3093 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 0.55 mm/day in a month?
Rain is recorded as a daily mean, so 0.55 mm/day is roughly 17 mm across a 30-day month.