ClimateAverages

Mong Cai Climate

Quang Ninh, Viet Nam · 16 weather stations within 200 km · records 1785 to 2025

Average annual daytime high
25.8°C
Warmest month · July
31.5°C
Typical daytime high
Coldest month · January
10.6°C
Typical overnight low

Mong Cai has an average annual daytime high of 25.8°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 31.5°C, and its coldest is January, with overnight lows near 10.6°C.

Month by month averages

MonthAvg highAvg low
January17.5°C10.6°CColdest
February18.4°C12.1°C
March21.6°C15.7°C
April25.7°C19.4°C
May29.9°C23.0°C
June31.0°C24.3°C
July31.5°C24.7°CWarmest
August31.2°C24.4°C
September30.6°C23.2°C
October27.8°C19.9°C
November24.0°C15.8°C
December19.8°C12.0°C

Temperature range across the year

9°15°21°27°34°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2023
+1.6°C vs. 1951–1980
Coldest year on record
1892
-1.6°C vs. 1951–1980

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

Is Mong Cai getting hotter?

Since 1900, Mong Cai's average temperature has risen by +1.9°C. Compared to the earliest station records that begin in 1785, warming totals +1.7°C.

21.3°21.9°22.5°23.2°23.8°1951–1980 baseline190019251950197520002025

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

Best time to visit
January to December

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

FAQ

What is the average temperature in Mong Cai?

Mong Cai's average annual daytime high is 25.8°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 31.5°C, and the coldest is January, with lows averaging 10.6°C.

What is the warmest month in Mong Cai?

July is the warmest month in Mong Cai, with typical daytime highs of 31.5°C.

What is the hottest year on record for Mong Cai?

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

Is Mong Cai getting hotter?

Yes. Since 1900, Mong Cai has warmed by roughly +1.9°C.

When is the best time to visit Mong Cai?

January to December typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

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.