Koh Samui Καιρός Πρόγνωση
Koh Samui weather: 26°C, light drizzle. Ανά ώρα forecast, 14-day outlook, UV, air quality and the best time έως visit.
Risk assessment for Koh Samui
Derived from the current forecast window - not an official warning.
Peak gusts of 48 km/h and 2 thunderstorm days in the next 16 days.
Wettest single day forecast at 56 mm, 292 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Koh Samui
Derived from the forecast. No official alert feed is wired for this country yet.
16-day forecast for Koh Samui
Μέγ. / Ελάχ.; Υετός; UV
| Ημέρα | Συνθήκες | Μέγ. / Ελάχ. | Υετός | Άνεμος | UV |
|---|---|---|---|---|---|
| Κυρ, Οκτ 25 | 🌦️ Light showers | 27° / 22° | 93% · 6 mm | 9 km/h | 7 |
| Δευ, Οκτ 26 | 🌧️ Μπόρες | 26° / 21° | 84% · 7 mm | 11 km/h | 8 |
| Τρι, Οκτ 27 | 🌧️ Μπόρες | 25° / 21° | 82% · 18 mm | 15 km/h | 8 |
| Τετ, Οκτ 28 | ⛈️ Καταιγίδα | 24° / 22° | 78% · 36 mm | 13 km/h | 3 |
| Πεμ, Οκτ 29 | ⛈️ Καταιγίδα | 24° / 22° | 96% · 37 mm | 13 km/h | 3 |
| Παρ, Οκτ 30 | 🌦️ Light showers | 25° / 22° | 99% · 13 mm | 16 km/h | 7 |
| Σαβ, Οκτ 31 | 🌦️ Ψιχάλα | 26° / 22° | 94% · 11 mm | 18 km/h | 8 |
| Κυρ, Νοέ 1 | 🌦️ Light showers | 26° / 22° | 94% · 13 mm | 11 km/h | 2 |
| Δευ, Νοέ 2 | 🌧️ Heavy drizzle | 26° / 22° | 96% · 9 mm | 11 km/h | 5 |
| Τρι, Νοέ 3 | 🌦️ Ψιχάλα | 25° / 22° | 94% · 11 mm | 11 km/h | 8 |
| Τετ, Νοέ 4 | 🌧️ Heavy drizzle | 25° / 22° | 98% · 16 mm | 11 km/h | 8 |
| Πεμ, Νοέ 5 | 🌦️ Ψιχάλα | 26° / 22° | 92% · 10 mm | 14 km/h | 6 |
| Παρ, Νοέ 6 | 🌦️ Ψιχάλα | 25° / 22° | 90% · 11 mm | 12 km/h | 8 |
| Σαβ, Νοέ 7 | 🌧️ Μπόρες | 24° / 21° | 71% · 56 mm | 15 km/h | 4 |
| Κυρ, Νοέ 8 | 🌦️ Light showers | 24° / 22° | 72% · 21 mm | 15 km/h | 1 |
| Δευ, Νοέ 9 | 🌦️ Light showers | 24° / 22° | 65% · 16 mm | 22 km/h | 1 |
What this means for Koh Samui
Today is about average for Οκτώβριος. The forecast high of 27°C is in line με the 27°C typical for this month.
A 93% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Within 15 degrees of the equator, day length barely changes all year; seasons are defined by rain, not temperature.
Northern Hemisphere, so peak summer falls in Ιούνιος έως Αύγουστος.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
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Koh Samui weather - more answers
Explore Koh Samui
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Frequently asked questions
Where is Koh Samui?
Koh Samui is an island in Ταϊλάνδη. Its coordinates are 9.512, 100.0136. It lies in Ασία.
What is the weather like in Koh Samui τώρα?
It is currently 26°C (79°F) με light drizzle. Υγρασία is 76% and wind is 4 km/h.
When is the best time έως visit Koh Samui?
Ιανουάριος, Φεβρουάριος, Μάρτιος and Απρίλιος offer the most comfortable conditions in Koh Samui, which has a temperate climate. Οκτώβριος, Νοέμβριος and Δεκέμβριος 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 1:23 PM.
What is the nearest airport έως 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 έως do in Koh Samui?
Popular options include Khao Sok National Park, Railay Beach, Μάιa Bay and Langkawi.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Πρόγνωση and observations | Open-Meteo (ECMWF and national models). |
| Ποιότητα αέρα and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Κλίμα averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, 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 Οκτώβριος 25, 2026 at 1:23 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
