Siutu, Samoa — Weather in August 2026

Climate Overview

Siutu, Samoa in August has warm conditions, with highs averaging 25.5°C (78°F). Rain falls on about 22 days this month, totalling around 115 mm. Sea temperature reaches 28.4°C (83°F).

This month falls at the end of Winter.

Temperatures remain fairly steady throughout August, with daily highs around 25°C (77°F).

August sees fairly even rainfall, totalling about 114 mm across the month.

Wind speeds pick up through the month, from 17 km/h (11 mph) to 23 km/h (14 mph).

The warmest days tend to fall around the 18th, averaging 25.8°C (78°F).

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

Monthly August Averages

Temperature

26°C / 23°C

Feels Like

29°C / 25°C

Rain

22 days · 115 mm

Sunshine

10.4h / day

Humidity

85% — Very Humid

Wind

20 km/h

Wind Direction

ESE (108°)

Gusts

42 km/h

Daylight

11.7 h

Cloud Cover

57%

Clear Sky Days

0.2

UV Index

7.3 — Very High

Sea Temperature

28°C

Dew Point

22°C — Muggy

Moon Phase

Waxing Crescent · 3%

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 06:47

Daylight 11.7h

Sunset 18:26

What to Expect

Daytime temperatures around 26°C (78°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 August 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 August a good time to visit Siutu?

August is typically wet for visiting Siutu, with average highs of 26°C (78°F) and around 22 rainy days. Siutu, Samoa in August has warm conditions, with highs averaging 25.5°C (78°F). Rain falls on about 22 days this month,

Does it rain a lot in Siutu in August?

Siutu typically sees around 22 rainy days in August with 115 mm (4.5 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Siutu in August?

Nights stay pleasantly warm in Siutu during August, around 23°C (74°F). Light evening wear is sufficient.

What should I pack for Siutu in August?

With highs of 26°C (78°F) and lows of 23°C (74°F) in August, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

Is August among the best months weather-wise in Siutu?

Yes, August offers some of the best weather conditions in Siutu with comfortable temperatures and lower chances of rain.

What is the UV index in Siutu in August?

The average UV index in Siutu during August 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 August?

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

Does it snow in Siutu in August?

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

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