Ko Samui weather averages for holidays in 2017/2018

Check Ko Samui weather averages before you book your next holiday in 2017/2018. Today's maximum temperature in Ko Samui is expected to be 34°C, while the average maximum temperature in April is 32°C.

  • Book online & save up 10% on Thailand holidays
  • 1,000's of FREE kids places available + low deposits
  • Travel before 30th April 2018 (inclusive)

More about Ko Samui

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All months

Ko Samui weather averages

Check out the Ko Samui weather averages before you book your next holiday to Thailand. The warmest months in Ko Samui are April and May with an average maximum temperature of 32°C. The sunniest month is February with on average 9 hours of bright sunshine per day. The months with the least number of days with some rain are February and March with 5 days. The sea is at its warmest in Ko Samui in April, May and June with an average sea temperature of 30°C.

Maximum daytime temperature (°C)

Hours of sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Days with some rainfall

Sea temperature (°C)

More weather parameters

Metric (°C / mm)  |  Imperial (°F / inches)

  • Book online & save up 10% on Thailand holidays
  • 1,000's of FREE kids places available + low deposits
  • Travel before 30th April 2018 (inclusive)

Back to top

Ko Samui weather today

Here is the weather in Ko Samui today, Sunday 30th April 2017. Expect isolated thunderstorms in Ko Samui, Thailand with a maximum temperature of 34°C, high levels of heat & humidity and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 15 kph from the east.

  • 34
    °C maximum temperature
  • 29
    °C minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 41
    % chance of some rain
  • <10
    mm of rainfall expected
  • H
    high heat & humidity
  • 15
    kph wind from E

5-day weather forecast

Metric (°C / mm)  |  Imperial (°F / inches)

  • Book online & save up 10% on Thailand holidays
  • 1,000's of FREE kids places available + low deposits
  • Travel before 30th April 2018 (inclusive)

Back to top

Tropical cyclone risk: Ko Samui, Thailand typhoon season

% of month affected by tropical cyclones
0
<1%
0
0
0
0
0
0
<1%
1%
2%
1%
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Ko Samui, Thailand tropical cyclone risk chart above shows the typhoon season.

More about tropical cyclones

  • Book online & save up to 10% on holidays to Thailand
  • FREE child places + low deposits available
  • Plus learn more about things to do & where to stay

Back to top

Ko Samui holiday weather averages by month

Check Ko Samui holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

Back to top

Compare Ko Samui weather with the USA

Below the Ko Samui weather chart shows maximum daytime temperature for Ko Samui, Thailand and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

Ko Samui, Thailand
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more Ko Samui weather >>

  • Book online & save up to 10% on holidays to Thailand
  • FREE child places + low deposits available
  • Plus learn more about things to do & where to stay

Back to top

Popular Thailand destinations

More Thailand destinations

All destinations (A to Z)

Can't see your chosen destination? Use our A to Z search to find your required the holiday weather guide:

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

More destinations

Related posts

Popular travel offers

Back to Holiday Weather Top ^