ClimateAverages

Sihanoukville Climate

Preah Sihanouk, Cambodia · population 156,691 · 10 weather stations within 200 km · records 1840 to 2025

Average annual daytime high
31.8°C
Warmest month · April
33.4°C
Typical daytime high
Coldest month · January
22.1°C
Typical overnight low

Sihanoukville has an average annual daytime high of 31.8°C, based on the 1951 to 1980 baseline. Its warmest month is April, when highs typically reach 33.4°C, and its coldest is January, with overnight lows near 22.1°C.

Month by month averages

MonthAvg highAvg low
January31.1°C22.1°CColdest
February31.6°C22.7°C
March32.6°C23.6°C
April33.4°C24.3°CWarmest
May33.0°C24.3°C
June31.9°C23.9°C
July31.4°C23.5°C
August31.1°C23.6°C
September31.1°C23.6°C
October31.1°C23.3°C
November31.5°C23.1°C
December31.2°C22.5°C

Temperature range across the year

20°24°28°32°35°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2023
+1.6°C vs. 1951–1980
Coldest year on record
1917
-1.0°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Sihanoukville getting hotter?

Since 1900, Sihanoukville's average temperature has risen by +1.5°C. Compared to the earliest station records that begin in 1840, warming totals +1.6°C.

26.7°27.2°27.7°28.2°28.7°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
any time of year

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Sihanoukville?

Sihanoukville's average annual daytime high is 31.8°C, based on the 1951 to 1980 baseline period. The warmest month is April, with highs averaging 33.4°C, and the coldest is January, with lows averaging 22.1°C.

What is the warmest month in Sihanoukville?

April is the warmest month in Sihanoukville, with typical daytime highs of 33.4°C.

What is the hottest year on record for Sihanoukville?

2023 is the hottest year on record for Sihanoukville, running +1.6°C above the 1951 to 1980 baseline.

Is Sihanoukville getting hotter?

Yes. Since 1900, Sihanoukville has warmed by roughly +1.5°C.

When is the best time to visit Sihanoukville?

any time of year typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.