Beach weather in Ko Samui, Thailand in January

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Visiting Ko Samui, Thailand in January

January is one of the best months to visit Ko Samui for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

30°C (86°F) Air Temperature

27°C (81°F) Sea Temperature

5.0 Hrs of Sun / Day

7.0 Days of Rain

January has average maximum temperatures of 30°C (86°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 42.8% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.0 hours of sunshine per day. January has total rainfall of 4.1cm (1.6inches) making it predominantly dry with occasional light showers on very few days. There are just 7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a very warm 27°C (81°F). January is an excellent month for swimming in Ko Samui with very comfortable temperatures for bathing all day.

Also consider visiting Ko Samui in one of the other best months of February, March, April, for the best beach weather.

Also consider one of our other suggestions for January.

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Can you sunbathe in Ko Samui in January?

Yes, January is a good time for sunbathing in Ko Samui.

More about January temperature and sunshine.

Can you swim in Ko Samui in January?

Yes, January is an excellent month for swimming in Ko Samui with very warm sea temperatures 27°C (81°F).

More about January sea temperatures.

Is January a good time to holiday in Ko Samui?

Yes, January is a great time for a holiday in Ko Samui.

More about the January temperatures and sunshine.

Is Ko Samui warm in January?

Yes, Ko Samui is very warm and perfect for sunbathing on clear days in January.

The average maximum temperature in Ko Samui in January is 30°C (86°F). The average maximum temperature is 30°C (85°) in the previous month and 31°C (87°F) in the next month.

The average temperature in Ko Samui in January is 28°C (82°F). The average temperature is 28°C (82°F) in the previous month and 28°C (83°F) in the next month.

More info about the January temperatures and sunshine.

How sunny is Ko Samui in January?

The average day light hours per day in Ko Samui in January are 11.6. The sunshine percentage is 42.8% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.0 hours of sunshine per day.

More about January sunshine.

Temperature in Ko Samui in January

The average maximum temperature in Ko Samui in January is 30°C (86°F). The average maximum temperature is 30°C (85°F) in the previous month and 31°C (87°F) in the next month.

The average temperature in Ko Samui in January is 28°C (82°F). The average temperature is 28°C (82°F) in the previous month and 28°C (83°F) in the next month.

The average minimum temperature in Ko Samui in January is 25°C (78°F). The minimum temperature is 26°C (78°F) in the previous month and 26°C (79°F) in the next month.

Sunshine in Ko Samui in January

During January the average day light hours are 11.6 per day in Ko Samui. The sunshine percentage is 42.8% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.0 hours of sunshine per day.

The ultraviolet index in Ko Samui in January is typically 11.2 during January. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Ko Samui in January

The average sea water temperature in Ko Samui in January is 27.3°C (81.1°F) which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Ko Samui in January

The average total rainfall in Ko Samui in January is 4.1cm (1.6inches) and on average there are 7 rainy days in January making it a quite rainy time to visit the beach.

Humidity in Ko Samui in January

The maximum dew point (an indicator of humidity) in Ko Samui in January is 24°C (75°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 24°C (76°F) in the previous month and 24°C (24°F) in the next month.

The average maximum relative humidity in Ko Samui in January is typically 88.5%. The maximum relative humidity is 88.6% in the previous month and 86.1% in the next month.

The average relative humidity in Ko Samui in January is typically 76.4%. The average relative humidity is 77.4% in the previous month and 73.6% in the next month.

Wind Speed in Ko Samui in January

The average maximum wind speed in Ko Samui in January is typically 22KM/H (14MPH). The average maximum wind speed is 22KM/H (14MPH) in the previous month and 24KM/H (15MPH) in the next month.

The average wind speed in Ko Samui in January is typically 13KM/H (8MPH). The average wind speed is 12KM/H (7MPH) in the previous month and 16KM/H (10MPH) in the next month.

The average wind direction in Ko Samui in January is from the East.

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