Siutu, Samoa — Weather in May 2027

Climate Overview

Siutu, Samoa in May has warm conditions, with highs averaging 26.5°C (80°F). Rain falls on about 26 days this month, totalling around 193 mm. Sea temperature reaches 29.8°C (86°F).

This month falls at the end of Autumn.

Temperatures remain fairly steady throughout May, with daily highs around 27°C (81°F).

Rainfall is heaviest during the first third of the month, while the last third tends to be drier.

Expect around 9.2h of sunshine at the start of May, increasing to 10.3h by the end.

Wind speeds pick up through the month, from 14 km/h (9 mph) to 19 km/h (12 mph).

The warmest days tend to fall around the 1th, averaging 26.7°C (80°F).

Compared to April, this month is about 0°C cooler with 2 fewer rainy days.

Monthly May Averages

Temperature

27°C / 24°C

Feels Like

31°C / 28°C

Rain

26 days · 193 mm

Sunshine

9.7h / day

Humidity

86% — Very Humid

Wind

17 km/h

Wind Direction

ESE (103°)

Gusts

36 km/h

Daylight

11.5 h

Cloud Cover

65%

Clear Sky Days

0.3

UV Index

6.5 — High

Sea Temperature

30°C

Dew Point

23°C — Muggy

Moon Phase

Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:44

Daylight 11.5h

Sunset 18:13

What to Expect

Daytime temperatures around 27°C (80°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

Recent yearly records for May have stayed close to the long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	27°C / 24°C	32°C / 28°C	29days (384 mm) Wet	9.7h Good	85% Humid	8.3 Very High	Wet	View Details
February	27°C / 24°C	32°C / 28°C	26days (502 mm) Wet	8.2h Good	86% Very Muggy	7.7 Very High	Wet	View Details
March	27°C / 25°C	33°C / 28°C	28days (191 mm) Wet	10.4h Excellent	84% Humid	9 Very High	Wet	View Details
April	27°C / 25°C	32°C / 28°C	28days (236 mm) Wet	9.8h Good	85% Humid	7.7 Very High	Wet	View Details
May	27°C / 24°C	31°C / 28°C	26days (193 mm) Wet	9.7h Good	86% Very Muggy	6.5 High	Wet	View Details
June best	26°C / 24°C	29°C / 26°C	22days (107 mm) Wet	9.9h Good	86% Very Muggy	6.2 High	Wet	View Details
July best	26°C / 24°C	29°C / 26°C	20days (148 mm) Wet	9.9h Good	85% Humid	6.5 High	Wet	View Details
August best	26°C / 23°C	29°C / 25°C	22days (115 mm) Wet	10.4h Excellent	85% Humid	7.3 Very High	Wet	View Details
September best	26°C / 23°C	30°C / 26°C	23days (105 mm) Wet	10.9h Excellent	85% Humid	8.5 Very High	Wet	View Details
October	26°C / 24°C	31°C / 26°C	27days (210 mm) Wet	10.7h Excellent	86% Very Muggy	8.9 Very High	Wet	View Details
November	26°C / 24°C	32°C / 27°C	27days (251 mm) Wet	10.5h Excellent	85% Humid	8.8 Very High	Wet	View Details
December	27°C / 24°C	32°C / 28°C	29days (340 mm) Wet	10.1h Excellent	85% Humid	8.9 Very High	Wet	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

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 Siutu?

May is typically wet for visiting Siutu, with average highs of 27°C (80°F) and around 26 rainy days. Siutu, Samoa in May has warm conditions, with highs averaging 26.5°C (80°F). Rain falls on about 26 days this month, tot

Does it rain a lot in Siutu in May?

Siutu typically sees around 26 rainy days in May with 193 mm (7.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Siutu in May?

Nights stay pleasantly warm in Siutu during May, around 24°C (76°F). Light evening wear is sufficient.

What should I pack for Siutu in May?

With highs of 27°C (80°F) and lows of 24°C (76°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 Siutu?

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

What is the UV index in Siutu in May?

The average UV index in Siutu 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 Siutu in May?

Siutu gets approximately 12 hours of daylight per day in May, with around 10 hours of sunshine.

Does it snow in Siutu in May?

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

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