Monthly Climate
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Best time to visit Haiphong

December is the best time to visit Haiphong for general sightseeing, with average highs of 21 °C and about 6 wet days. The comfortable season runs roughly November to March. The sea stays above 20 °C from March to January.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking December comfort 94/100
A beach holiday November sea 26 °C
The least cloud October 54 % average cloud cover
The least rain February 22 mm
Warmth June 32 °C
Cooler weather January 20 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 94 21 °C 6 74
2 February 93 21 °C 6 66
3 January 92 20 °C 6 61
4 November 87 25 °C 8 88
5 March 86 24 °C 9 72
6 April 68 28 °C 12 80
7 October 68 28 °C 12 78
8 September 47 30 °C 20 65
9 May 46 30 °C 20 70
10 August 41 31 °C 26 61
11 July 39 32 °C 24 60
12 June 39 32 °C 22 60

For a beach holiday

November scores highest, with a sea temperature of 26 °C and air temperatures around 25 °C. The sea is above 20 °C from March to January.

Month Sea Air Sunshine Beach score
January 20 °C 20 °C 75 % 61
February 20 °C 21 °C 78 % 66
March 21 °C 24 °C 79 % 72
April 23 °C 28 °C 72 % 80
May 27 °C 30 °C 76 % 70
June 29 °C 32 °C 88 % 60
July 30 °C 32 °C 84 % 60
August 30 °C 31 °C 83 % 61
September 30 °C 30 °C 71 % 65
October 28 °C 28 °C 54 % 78
November 26 °C 25 °C 54 % 88
December 23 °C 21 °C 63 % 74

When to think twice

June scores lowest with about 22 wet days and highs near 32 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 19.6 °C 33 mm 75 %
February 21.2 °C 22 mm 78 %
March 24.1 °C 43 mm 79 %
April 27.7 °C 76 mm 72 %
May 30.2 °C 246 mm 76 %
June 31.8 °C 261 mm 88 %
July 31.6 °C 294 mm 84 %
August 30.9 °C 370 mm 83 %
September 30.0 °C 243 mm 71 %
October 28.1 °C 103 mm 54 %
November 25.1 °C 53 mm 54 %
December 21.1 °C 30 mm 63 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.