Koh Samui Κλίμα and Average Καιρός
Κλίμα of Koh Samui: average temperatures, rainfall and seasons month by month.
Κλίμα in Koh Samui month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Μήνας | Avg high | Avg low | Βροχήfall | Rating |
|---|---|---|---|---|
| Ιανουάριος | 26° | 22° | 58 mm | ★★★★☆ |
| Φεβρουάριος | 27° | 23° | 66 mm | ★★★★☆ |
| Μάρτιος | 28° | 24° | 34 mm | ★★★★★ |
| Απρίλιος | 30° | 24° | 47 mm | ★★★★☆ |
| Μάι | 29° | 24° | 140 mm | ★★★★☆ |
| Ιούνιος | 30° | 24° | 83 mm | ★★★★☆ |
| Ιούλιος | 30° | 24° | 105 mm | ★★★★☆ |
| Αύγουστος | 29° | 23° | 129 mm | ★★★★☆ |
| Σεπτέμβριος | 28° | 23° | 105 mm | ★★★★☆ |
| Οκτώβριος | 27° | 23° | 235 mm | ★★★☆☆ |
| Νοέμβριος | 26° | 22° | 301 mm | ★★★☆☆ |
| Δεκέμβριος | 26° | 22° | 182 mm | ★★★☆☆ |
Κλίμα type: Temperate. Πηγή: Open-Meteo archive (ERA5).
Recent extremes in Koh Samui
Υψηλόest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Koh Samui compares με nearby places
Annual averages, and the difference against Koh Samui.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Khao Sok National Park | 176 km | 26°C | +1°C warmer | 2702 mm |
| Railay Beach | 211 km | 27°C | +2°C warmer | 2044 mm |
| Phuket International Airport | 243 km | 28°C | +3°C warmer | 2195 mm |
| Μάιa Bay | 246 km | 28°C | +3°C warmer | 1965 mm |
| Phuket | 254 km | 28°C | +2°C warmer | 1981 mm |
Καλύτερη εποχή για επίσκεψη Koh Samui
Go in Ιανουάριος, Φεβρουάριος, Μάρτιος and Απρίλιος. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: Οκτώβριος, Νοέμβριος and Δεκέμβριος - expect the least comfortable mix of heat, cold or rain.
What this means for Koh Samui
Today is about average for Οκτώβριος. The forecast high of 28°C is in line με the 27°C typical for this month.
A 90% 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.
What έως pack, what έως skip
- Κυρglasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid Οκτώβριος, Νοέμβριος and Δεκέμβριος - historically the least comfortable months here.
Περίληψη
Koh Samui is an island in Ταϊλάνδη. Koh Samui is an island known for palm-fringed beaches in the Gulf.
Αυτή τη στιγμή είναι 24°C (76°F) in Koh Samui με Καθαρός ουρανός. Η αισθητή θερμοκρασία είναι 28°C. Σήμερα η θερμοκρασία κυμαίνεται από 23°C έως 28°C. Η πιθανότητα βροχής είναι 90%. Sightseeing conditions score 7.5/10 - Καλές συνθήκες.
Η καλύτερη εποχή για επίσκεψη στο Koh Samui is Ιανουάριος, Φεβρουάριος, Μάρτιος and Απρίλιος. Το κλίμα είναι temperate. Οκτώβριος, Νοέμβριος and Δεκέμβριος tend έως be the least comfortable months. Απρίλιος is the warmest month με average highs near 30°C, while Ιανουάριος is the coldest με lows near 22°C.
The closest major airport is Phuket International Airport (HKT), about 243 km away. Nearby highlights include Khao Sok National Park, Railay Beach, Μάιa Bay and Langkawi.
Με απλά λόγια. Today is about average for Οκτώβριος. The forecast high of 28°C is in line με the 27°C typical for this month. The best window έως be outside is roughly 6 PM έως 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Koh Samui today at 8.6/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Koh Samui
Καιρός map for Koh Samui
Animated model layers. Pick a layer έως load it.
Animated layers by Άνεμοςy. For pin-level detail and nearby places, see the interactive map below.
Explore Koh Samui
Every topic we hold for this place, and the same topic for the places around it.
Κλίμα for related places
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 24°C (76°F) με Καθαρός ουρανός. Υγρασία is 86% and wind is 6 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 7:36 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 24, 2026 at 7:36 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
