A consolidated reference for Dongguan climate: monthly averages, rebuilt from public data on a schedule. Expect 14.5 C at the coldest (Jan) and 28.4 C at the warmest (Jul) — a 13.9 C spread. Expect a wet season rather than rain year-round: Jun brings 10.83 mm/day against 0.89 mm/day in Dec. Taken together that is roughly 1,627 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. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 22.8 C
Warmest month Jul (28.4 C)
Coldest month Jan (14.5 C)
Wettest month Jun (10.83 mm/day)
All-time record high 37.0 C
All-time record low -3.2 C
Annual precipitation 1,632 mm / year
Coordinates 23.01797, 113.74866
Population 9,644,871
Average monthly temperature and rainfall in Dongguan
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
14.5
1.46
30.1
-1.9
Feb
17.1
1.36
33.0
0.2
Mar
20.2
2.93
32.1
4.3
Apr
23.7
4.73
35.2
8.6
May
26.5
8.98
35.9
15.5
Jun
27.8
10.83
36.4
18.5
Jul
28.4
6.60
36.8
21.9
Aug
28.4
7.47
37.0
21.6
Sep
27.2
5.46
35.8
16.8
Oct
24.1
1.60
34.2
8.9
Nov
20.5
1.22
33.4
3.7
Dec
15.4
0.89
30.5
-3.2
What the Dongguan climate table shows
Values are multi-decadal climatological averages for the 23.01797, 113.74866 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
Is Dongguan climate data a forecast?
No. These are multi-decadal averages for the grid cell, not a prediction for any particular year.
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.