Chaweng Beach Weather in January

Chaweng Beach in January sees high temperatures, with highs around 28°C (82°F) and overnight lows of 26°C (79°F). Rainfall is fairly high at around 82 mm (3.2 in) on average, so pack waterproofs just in case.

Rainfall in Chaweng Beach in January

You can expect rain on around 9 days based on historical patterns, with 82 mm (3.2 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Chaweng Beach in January

January is one of the better months to visit Chaweng Beach. Expect 28°C (82°F) during the day and 26°C (79°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 26°C (79°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Chaweng Beach in January

The days are predominantly sunny, with an estimated total of around 200 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Average water temperature in January

The water temperature is 27°C (81°F), which most people find very comfortable. A good month for swimming and water sports.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Chaweng Beach.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Thailand, check out our Chaweng Beach's climate page.

Chaweng Beach Temperature in January

Min Temperature 26°C (79°F)  

Max Temperature 28°C (82°F)  

Water Temperature 27°C (81°F) *  

Chance of Rain 31%  

Precipitation 82 mm (3.2 in)  

Rainy days 9 days  

Humidity 83% *  

Sunshine 200 hours *  

Percentage Sunshine *  

* Data from: Koh Samui, Thailand (13 KM, 8 Miles).

Daily Historical Temperatures

50-year average (1976-2026)

Based on our historical records, temperatures in Chaweng Beach typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 25°C (77°F).

Average temperatures in January

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Daily Historical Precipitation

50-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

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

‹ January February March April May June July August September October November December ›

Historical weather for Chaweng Beach in January

Browse day-by-day weather records for Chaweng Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Chaweng Beach historical weather extremes in January

Our historical data for Chaweng Beach spans 1993 to 2025, revealing these weather extremes.

• On January 23, 2023, temperatures climbed to 34°C (93°F), marking the warmest January day on record.
• Chaweng Beach experienced its chilliest January day on January 23, 2000, reaching only 24°C (75°F).
• The coldest night in January in Chaweng Beach was on January 17, 2023, with a minimum of 21°C (70°F).

What to Wear in Chaweng Beach in January

Warm but pleasant conditions in Chaweng Beach in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 27°C (81°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Chaweng Beach in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Thailand, check out our Chaweng Beach's climate page.

More climate data for Chaweng Beach

Temperature Rainfall Sunshine Humidity Water Temp

See the full Chaweng Beach climate overview or explore weather in Thailand.