Sun, sea & sand

Koh Lanta weather in June

Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.

69

Holiday weather in June

Good

Best time to visit: January – March

What is the weather like in Koh Lanta in June?

In June, Koh Lanta is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 30.1 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 236 mm. The air is often humid and muggy. All in all, June is a good month for a holiday in Koh Lanta.

June compared

How the weather changes from May to July. Tap a month to open it.

MayMayJuneJunJulyJul
Score696967
Day29°29°29°
Night26°26°26°
Sea30°30°30°
Sun6 h6 h5 h
Rain days272424

More details for June

Daylight
12 h 33 min06:07 – 18:40
UV index
13 · extremeclear sky, noon (estimate)All months
Muggy days
30 daysdew point 18 °C or moreAll months
Wind
13 km/haverage daily peakAll months
Cloud cover
85 %on averageAll months
Hot days
2 days30 °C or moreAll months
Time zone
UTC+7Asia/Bangkok

How the score comes together

  • Temperatureweight 35 %100 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %43 %
  • Few rainy daysweight 20 %0 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in June

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Insect repellent
  • Rain jacket or umbrella

Koh Lanta in June: quick answers

Is Koh Lanta hot in June?

Yes. In June, Koh Lanta is hot: daytime highs average 29 °C and nights stay around 26 °C. On about 2 days the thermometer climbs to 30 °C or more.

Can you swim in Koh Lanta in June?

Yes. In June the sea averages 30.1 °C – almost as warm as a bath.

Does it rain much in Koh Lanta in June?

It rains often – on about 24 days, adding up to 236 mm.

Koh Lanta month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences