Weather Koh Kong Today – Temperature, Rain & Hourly Forecast

Monday, 21/09/2026

27°
Overcast · Feels like 32°
Updated 11 hours ago
High/Low
29°/26°
Humidity
83%
Wind
11 km/h
Rainfall
12.1 mm
UV index
8.4
Pressure
1013 hPa
Sunrise
05:57
Sunset
18:05

Today

00
06
12
18
00:0006:0012:0018:00

Summary

Koh Kong gets a cooler-than-usual day, 26–29°C, under thunderstorm.

Rain concentrates around 02:00–00:00 with about 11.4 mm — worth taking an umbrella.

Thunderstorms are possible around 02:00–00:00.

Maximum UV of 8.4 at 12:00 — stay out of the sun between 10am and 3pm and use sunscreen.

Humidity of 83% pushes the felt temperature to 32°C.

Wind runs 18 km/h out of the north-west.

Temperatures ease off, bottoming out at 25°C on Sunday 27/09.

The wettest day ahead is Thursday 24/09 with about 124 mm.

Sunrise 05:57, sunset 18:05.

Best time to visit

Outdoor heat stress
31°C
Peaks at 21:00 — take breaks
Dry riding window
No dry window of 2+ hours in the next 14 hours
Drying laundry
Workable
0 sunny hours, 0 wet hours between 07:00 and 17:00
Sunrise viewing
05:57
88% cloud at sunrise — thick cloud, poor visibility
Skin protection
8.4
Unprotected skin may burn in about 15 minutes

48-hour forecast

19:00
27°
88%
20:00
27°
80%
21:00
27°
70%
22:00
27°
63%
23:00
27°
63%
00:00
27°
67%
01:00
27°
69%
02:00
27°
67%
03:00
27°
64%
04:00
26°
61%
05:00
26°
59%
06:00
26°
56%
07:00
26°
57%
08:00
27°
62%
09:00
27°
69%
10:00
28°
76%
11:00
28°
83%
12:00
28°
90%
13:00
28°
96%
14:00
28°
99%
15:00
28°
100%
16:00
28°
100%
17:00
27°
100%
18:00
27°
100%
19:00
26°
98%
20:00
26°
94%
21:00
26°
88%
22:00
26°
84%
23:00
26°
83%
00:00
27°
83%
01:00
26°
82%
02:00
26°
79%
03:00
26°
75%
04:00
25°
71%
05:00
26°
67%
06:00
26°
64%
07:00
26°
63%
08:00
26°
64%
09:00
26°
68%
10:00
27°
73%
11:00
27°
82%
12:00
26°
92%
13:00
26°
100%
14:00
27°
100%
15:00
27°
100%
16:00
27°
100%
17:00
27°
100%
18:00
27°
100%

Days ahead

TodayLow/HighChance of rainRainfall
Today
21/09
Thunderstorm26°29°97%12.1 mm
Tomorrow
22/09
Thunderstorm26°28°100%27.6 mm
Wednesday
23/09
Thunderstorm25°27°100%21.9 mm
Thursday
24/09
Thunderstorm25°27°100%124.3 mm
Friday
25/09
Thunderstorm26°27°100%122.2 mm

Monthly averages

Common questions

Will it rain in Koh Kong today?
Yes. Rain is expected around 02:00–00:00, totalling roughly 11.4 mm.
How hot is it in Koh Kong today?
Between 26°C and 29°C, with a felt maximum of 33°C.
What is the weather in Koh Kong tomorrow?
Tomorrow: thunderstorm, 26–28°C, with a 100% chance of rain.

Upstream rainfall · Cardamom coastal rivers

Past 72 hours
55 mm
Next 72 hours
148 mm
Status
High
Water may arrive
25/09
Upstream sampling pointsPast 72 hoursNext 72 hours
Cardamom summit51 mm113 mm
Koh Kong36 mm184 mm
Bokor79 mm148 mm

This measures upstream rainfall, not river level. Official levels and discharge come from the Mekong River Commission (MRC). Upstream rainfall causes the level, and is visible several days earlier. MRC

Koh Kong

Sea & waves today

0.4 m · calm · period 3s · W

21/090.4 mcalm
22/090.4 mcalm
23/090.5 mslight

Nearby places

Districts

Districts & towns