Ko Samui Weather in July

What's the weather like in Ko Samui, Thailand in July 2019?

The climate in Ko Samui during July can be summarized as hot, humid and wet.

July is in the summer in Ko Samui and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (75°F) is normal.

Ko Samui weather averages (imperial / metric)
Daytime temperature 31.2°C 88.1°F
Nightly temperature 23.9°C 74.9°F
Average temperature 27.5°C 81.5°F
Daily sunshine 6.2 hrs
Avg rainfall 146 mm 5.7 ins
Rainy days 17 days
Sea temperature 29.5°C 85.1°F
Humidity 77%
Windspeed 8.6kph 5 mph

On average July is the 5th wettest month of the year in Ko Samui with around 146mm 5.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.2 hours of sunshine per day.

July temperatures in Ko Samui

July rainfall

July hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in July 2019.

Other monthly averages

UV index

Ko Samui weather stats

Ko Samui weather statistics
Hottest month: April 31.6°C 88.9°F
Driest month: February 39mm 1.5ins
Sunniest month: February 8.7hrs
Coldest month: January 28.4°C 83.1°F
Wettest month: November 463mm 18.2ins
Map showing location of Ko Samui (9.53567, 99.93567)

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