10-Day Weather Forecast for Koh Samui

Six-hourly outlook through Saturday 24 October. Updated every three hours via MET Norway.

Day
Night
02:00
Morning
07:00
Afternoon
13:00
Evening
19:00
Friday
16 Oct
Partly cloudy
29°C (84°F)
0.1 mm (0 in)
Rain showers
29°C (84°F)
1.1 mm (0.04 in)
Light rain showers
32°C (90°F)
0.7 mm (0.03 in)
Rain showers
30°C (86°F)
1 mm (0.04 in)
Hourly ›
Saturday
17 Oct
Partly cloudy
28°C (82°F)
0.4 mm (0.02 in)
Rain
28°C (82°F)
3.2 mm (0.1 in)
Rain showers
31°C (88°F)
2.7 mm (0.1 in)
Heavy rain
29°C (84°F)
5.9 mm (0.2 in)
Hourly ›
Sunday
18 Oct
Rain
26°C (79°F)
1.2 mm (0.05 in)
Rain showers
27°C (81°F)
3 mm (0.1 in)
Rain showers
28°C (82°F)
4.1 mm (0.2 in)
Rain showers
27°C (81°F)
2.1 mm (0.1 in)
Hourly ›
Monday
19 Oct
Rain
27°C (81°F)
4.3 mm (0.2 in)
Rain
27°C (81°F)
3.8 mm (0.1 in)
Rain showers
28°C (82°F)
3.2 mm (0.1 in)
Rain showers
27°C (81°F)
4.4 mm (0.2 in)
Hourly ›
Tuesday
20 Oct
Heavy rain
26°C (79°F)
6.8 mm (0.3 in)
Rain showers
26°C (79°F)
2.6 mm (0.1 in)
Rain
29°C (84°F)
2 mm (0.1 in)
Heavy rain
27°C (81°F)
5 mm (0.2 in)
Hourly ›
Wednesday
21 Oct
Heavy rain
27°C (81°F)
8.6 mm (0.3 in)
Rain
27°C (81°F)
2 mm (0.1 in)
Rain showers
28°C (82°F)
1 mm (0.04 in)
Heavy rain showers
28°C (82°F)
5.2 mm (0.2 in)
Hourly ›
Thursday
22 Oct
Rain
27°C (81°F)
3.6 mm (0.1 in)
Light rain
27°C (81°F)
0.8 mm (0.03 in)
Rain
29°C (84°F)
1.8 mm (0.1 in)
Rain showers
28°C (82°F)
2.7 mm (0.1 in)
Hourly ›
Friday
23 Oct
Rain
28°C (82°F)
1.7 mm (0.1 in)
Rain
28°C (82°F)
4.8 mm (0.2 in)
Cloudy
28°C (82°F)
0.3 mm (0.01 in)
Rain
28°C (82°F)
3.8 mm (0.1 in)
Hourly ›
Saturday
24 Oct
Rain
27°C (81°F)
3.5 mm (0.1 in)
Rain
27°C (81°F)
1.4 mm (0.1 in)
Rain
29°C (84°F)
2.5 mm (0.1 in)
Rain
27°C (81°F)
3.6 mm (0.1 in)
Hourly ›
Sunday
25 Oct
Rain
27°C (81°F)
1.6 mm (0.1 in)
—
—
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Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Koh Samui this week?

Today's weather - Friday 16 Oct

For Friday the predicted weather in Koh Samui is light rain showers throughout the day. The maximum temperature is a very warm 32°C (90°F), while the minimum temperature is a warm 29°C (84°F).

Tomorrow's weather - Saturday 17 Oct

For Saturday the forecast for Koh Samui is rain showers throughout the day. Temperatures will range from a warm 28°C (82°F) to a very warm 31°C (88°F).

10-Day Weather Forecast

During the next 10 days, temperatures will start at 32°C (90°F) on Friday, then cooling down, with average highs of 29°C (84°F) and lows of 27°C (81°F). Compared to normal October conditions, this is typical. Rainfall is expected to be a bit more than usual (compared to typical October conditions). The forecast shows some rainy days. Precipitation is likely on approximately 8 days (Fri, Sat, Sun, Mon, Tue, Wed, Thu, Fri). The wind will be generally calm during this period.

Weather Forecast FAQ for Koh Samui

When will be the warmest day next week?

The warmest day is expected to be Friday with a high of 32°C (90°F).

When will be the coldest day?

The coldest day is forecasted for Tuesday with a low of 26°C (79°F).

Will it rain next week in Koh Samui?

Yes, rain is expected on 8 days , specifically on Fri, Sat, Sun, Mon, Tue, Wed, Thu, Fri.

How much rainfall is expected next week?

A total of 94 mm (3.7 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 26°C (79°F) to 32°C (90°F).

More about Koh Samui

Explore the full Koh Samui climate overview with monthly averages, or check rainfall data and temperature by month.

Koh Samui weather by month

Browse monthly averages for Koh Samui: climate by month with temperature, rainfall and sunshine.

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