Haiphong, Vietnam — Weather in May 2027

Climate Overview

Haiphong, Vietnam in May has hot conditions, with highs reaching 30.4°C (87°F) and afternoons the warmest part of the day. Rain falls on about 20 days this month, totalling around 193 mm. Sea temperature reaches 29.5°C (85°F).

This month falls at the end of Spring. The combination of heat and frequent rain creates tropical monsoon conditions.

Temperatures remain fairly steady throughout May, with daily highs around 31°C (88°F).

May sees fairly even rainfall, totalling about 193 mm across the month.

Expect around 9.8h of sunshine at the start of May, decreasing to 9.3h by the end.

The warmest days tend to fall around the 31th, averaging 31.5°C (89°F).

Compared to April, this month is about 2°C warmer with 9 more rainy days.

Monthly May Averages

Temperature

30°C / 25°C

Feels Like

36°C / 30°C

Rain

20 days · 193 mm

Sunshine

9.3h / day

Humidity

83% — Very Muggy

Wind

15 km/h

Wind Direction

SE (129°)

Gusts

32 km/h

Daylight

13.1 h

Cloud Cover

72%

Clear Sky Days

1.4

UV Index

7.3 — Very High

Sea Temperature

30°C

Dew Point

25°C — Oppressive

Moon Phase

Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:16

Daylight 13.1h

Sunset 18:23

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	20°C / 14°C	20°C / 14°C	7days (36 mm) Good	5.2h Fair	77% Humid	4.4 Moderate	Excellent	View Details
February best	21°C / 15°C	22°C / 15°C	6days (29 mm) Good	5.2h Fair	78% Humid	3.6 Moderate	Excellent	View Details
March best	25°C / 19°C	27°C / 20°C	9days (39 mm) Wet	5.8h Fair	82% Humid	5.2 High	Excellent	View Details
April	28°C / 22°C	32°C / 25°C	11days (69 mm) Wet	8.3h Good	82% Humid	7 High	Good	View Details
May	30°C / 25°C	36°C / 30°C	20days (193 mm) Wet	9.3h Good	83% Humid	7.3 Very High	Wet	View Details
June	32°C / 27°C	39°C / 33°C	21days (246 mm) Wet	8.6h Good	81% Humid	7.6 Very High	Wet	View Details
July	32°C / 27°C	39°C / 33°C	24days (296 mm) Wet	8.7h Good	83% Humid	7.7 Very High	Wet	View Details
August	31°C / 26°C	38°C / 32°C	27days (427 mm) Wet	7.5h Good	86% Very Muggy	7.5 Very High	Wet	View Details
September	30°C / 25°C	37°C / 30°C	23days (304 mm) Wet	8h Good	85% Humid	6.6 High	Wet	View Details
October	28°C / 22°C	32°C / 24°C	14days (142 mm) Wet	8h Good	79% Humid	6.5 High	Good	View Details
November best	26°C / 19°C	27°C / 20°C	8days (43 mm) Wet	7.7h Good	76% Humid	5.3 High	Excellent	View Details
December best	21°C / 15°C	21°C / 14°C	4days (19 mm) Good	6.4h Fair	71% Muggy	4.1 Moderate	Excellent	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

Expand all

Is May a good time to visit Haiphong?

May is typically wet for visiting Haiphong, with average highs of 30°C (87°F) and around 20 rainy days. Haiphong, Vietnam in May has hot conditions, with highs reaching 30.4°C (87°F) and afternoons the warmest part of the da

Does it rain a lot in Haiphong in May?

Haiphong typically sees around 20 rainy days in May with 193 mm (7.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Haiphong in May?

Nights stay pleasantly warm in Haiphong during May, around 25°C (78°F). Light evening wear is sufficient.

What should I pack for Haiphong in May?

With highs of 30°C (87°F) and lows of 25°C (78°F) in May, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

Is May among the best months weather-wise in Haiphong?

May is not the most favourable month weather-wise in Haiphong. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Haiphong in May?

The average UV index in Haiphong during May is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Haiphong in May?

Haiphong gets approximately 13 hours of daylight per day in May, with around 9 hours of sunshine.

Does it snow in Haiphong in May?

Snow is uncommon in Haiphong during May based on 10-year climate averages.

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