This page is a single place to check Hwaseong-si climate: monthly averages. Hwaseong-si runs from -1.7 C in Jan to 25.0 C in Aug, a swing of 26.7 C. Rain is strongly seasonal: Jul is the wettest month at 11.08 mm/day, while Jan runs at 0.70 mm/day, about 15.8x drier. Taken together that is roughly 1,224 mm of rain a year for the grid cell. Because each page is rebuilt independently, one unavailable upstream never takes the rest of the site down. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 11.9 C
Warmest month Aug (25.0 C)
Coldest month Jan (-1.7 C)
Wettest month Jul (11.08 mm/day)
All-time record high 35.6 C
All-time record low -16.4 C
Annual precipitation 1,230 mm / year
Coordinates 37.20682, 126.8169
Population 640,890
Average monthly temperature and rainfall in Hwaseong-si
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-1.7
0.70
12.7
-14.8
Feb
0.0
1.13
16.3
-16.4
Mar
4.2
1.27
19.6
-7.2
Apr
10.0
2.55
25.8
-1.1
May
15.9
2.72
29.1
3.8
Jun
20.8
4.16
32.5
9.6
Jul
24.1
11.08
33.6
16.1
Aug
25.0
8.15
35.6
15.0
Sep
20.6
4.47
29.5
9.8
Oct
14.6
1.65
26.4
0.8
Nov
7.6
1.54
21.5
-3.2
Dec
0.6
0.83
15.6
-13.4
What the Hwaseong-si climate table shows
Values are multi-decadal climatological averages for the 37.20682, 126.8169 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
Does Hwaseong-si get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.