Island in Taíland

Koh Samui Veður Spá

Koh Samui weather: 23°C, light drizzle. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.

🌦️ 23°C now🕔 1:37 AM local📅 Best: janúar, febrúar, mars and apríl

14-day forecast for Koh Samui

Hæst / Lægst; Úrkoma; UV

DagurAðstæðurHæst / LægstÚrkomaVindurUV
mið., okt 28🌧️ Skúrir24° / 22°100% · 17 mm17 km/h1
fim., okt 29⛈️ Þrumuveður26° / 22°99% · 31 mm18 km/h8
fös., okt 30⛈️ Þrumuveður26° / 23°100% · 14 mm18 km/h8
lau., okt 31⛈️ Þrumuveður26° / 21°92% · 17 mm14 km/h8
sun., nóv 1🌦️ Drizzle27° / 23°90% · 5 mm11 km/h8
mán., nóv 2🌧️ Heavy drizzle26° / 22°80% · 9 mm10 km/h7
þri., nóv 3🌦️ Drizzle26° / 22°92% · 7 mm10 km/h6
mið., nóv 4🌦️ Drizzle27° / 22°100% · 6 mm14 km/h8
fim., nóv 5🌦️ Drizzle26° / 23°90% · 7 mm9 km/h8
fös., nóv 6🌧️ Heavy drizzle26° / 22°100% · 10 mm11 km/h8
lau., nóv 7🌧️ Heavy drizzle25° / 22°98% · 14 mm13 km/h8
sun., nóv 8🌦️ Light showers25° / 21°97% · 18 mm15 km/h4
mán., nóv 9🌧️ Heavy drizzle26° / 22°96% · 7 mm13 km/h5
þri., nóv 10🌦️ Drizzle26° / 21°91% · 8 mm15 km/h3

The two-week trend

Temperature trend

Steady. The second week averages within a degree of the first, so no big change is signalled.

Against the normal

The window averages 26°C against a október normal of 28°C - 2°C below.

Rigningfall

The next 7 days carry about 2.4 times a normal week's rain for október (99 mm against 41 mm).

What this means for Koh Samui

Compared með normal

Today is slightly cooler than average for október. The forecast high of 24°C is 3.3°C below the 28°C typical for this month.

Rigning chance explained

A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 17 mm is forecast, which is enough til soak trails and slow traffic.

Ferðir and driving

Wet roads are likely; braking distances roughly double in heavy rain.

Worth knowing

Within 15 degrees of the equator, day length barely changes all year; seasons are defined by rain, not temperature.

Worth knowing

Northern Hemisphere, so peak summer falls in júní til ágúst.

Worth knowing

The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.

What til pack, what til skip

Pack for the next 7 days
  • sun.glasses, a brimmed hat and SPF 30+
  • A packable rain shell - 7 of the next 7 days carry a real chance of rain
Worth avoiding
  • If your dates are flexible, avoid október, nóvember and desember - historically the least comfortable months here.

Sjá spá fyrir Koh Samui eftir tímabili

Koh Samui weather - more answers

Explore Koh Samui

Every topic we hold for this place, and the same topic for the places around it.

Veður for related places

Frequently asked questions

Where is Koh Samui?

Koh Samui is an island in Taíland. Its coordinates are 9.512, 100.0136. It lies in Asía.

What is the weather like in Koh Samui núna?

It is currently 23°C (74°F) með light drizzle. Raki is 93% and wind is 12 km/h.

When is the best time til visit Koh Samui?

janúar, febrúar, mars and apríl offer the most comfortable conditions in Koh Samui, which has a temperate climate. október, nóvember and desember are usually the hardest months for outdoor plans.

What time zone is Koh Samui in?

Koh Samui observes Asia/Bangkok (UTC+07:00). The local time is 1:37 AM.

What is the nearest airport til Koh Samui?

The closest airports are Phuket International Airport (HKT), 243 km away and Suvarnabhumi Airport (BKK), 471 km away.

What are the top things til do in Koh Samui?

Popular options include Khao Sok National Park, Railay Beach, maía Bay and Langkawi.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts.
Spá and observationsOpen-Meteo (ECMWF and national models).
Loftgæði and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Loftslag averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated október 29, 2026 at 1:37 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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