There's a private car for pick-up and drop-off, and they can help keep your bags and phones safe. If you can't bring them, no problem, the travel agency will help take photos. The speedboat ride to and from the destination, including the one that stops for snorkeling, can be very seasick, so remember to take seasickness medication and be sure to wear sunscreen. I got a lot of sunburn on this trip. Aside from that, it was great.
Anonymous User
Couple
Koh Larn Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Koh Larn year round climate
Spring (March–May): Average 28.8–29.7°C, warm and humid climate with occasional showers. May has more rainfall. Common activities: swimming, snorkeling, sunbathing. Recommended clothing: light short-sleeved clothing, shorts, swimwear, and a light jacket for showers.
Summer (June–August): Average 28.9–29.7°C, hot and humid with moderate rainfall. Common activities: water sports, beach relaxation. Recommended clothing: light and breathable clothing, swimwear, sun hat, sunscreen.
Autumn (September–November): Average 27.7–28.4°C, slightly cooler temperatures, but still warm and humid. September has the most rainfall. Common activities: swimming, snorkeling, island exploration. Recommended clothing: light long-sleeved or short-sleeved clothing, long pants or shorts, and a light jacket as needed.
Winter (December–February): Average 27.0–27.7°C, relatively cooler temperatures, dry and less rain. Common activities: swimming, sunbathing, island sightseeing. Recommended clothing: light long-sleeved or short-sleeved clothing, long pants or shorts.
Koh Larn climatological average
Annual average temperature: approx. 28.5°C / Annual rainfall: approx. 1837 mm / Summer humidity: 75%–85% / Rainiest month: September
Koh Larn monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
27°C
15.5
February
27.7°C
45.7
March
28.8°C
53.8
April
30.1°C
44.5
May
29.7°C
227.8
June
29.7°C
198.5
July
28.9°C
196
August
29°C
165.9
September
28.4°C
407.1
October
27.7°C
362.1
November
27.8°C
107
December
27.1°C
13.2
Koh Larn weather for the next seven days
5/3
Sunday
Sunny
32.3°C/28.6°C
5/4
Monday
Patchy rain nearby
32.6°C/28.8°C
5/5
Tuesday
Moderate rain
31.7°C/27.7°C
5/6
Wednesday
Patchy rain nearby
31.8°C/28.3°C
5/7
Thursday
Patchy rain nearby
31.9°C/28.4°C
5/8
Friday
Patchy rain nearby
31.5°C/28.6°C
5/9
Saturday
Patchy rain nearby
30.8°C/26.5°C
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