Choeng Mon Beach Weather in December

December in Choeng Mon Beach typically sees daytime highs of 29°C (84°F) and nighttime lows of 26°C (79°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Choeng Mon Beach in December

Climate statistics over the past 30 years suggest around 14 days of rain, with 147 mm (5.8 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Choeng Mon Beach in December

If you're visiting Choeng Mon Beach in December, expect highs of 29°C (84°F) and overnight lows around 26°C (79°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Sunshine in Choeng Mon Beach in December

The month brings about 177 hours of sunlight, offering a comfortable mix of sun and overcast.

Average water temperature in December

With water at 29°C (84°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.

For Choeng Mon Beach itself, January and February generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Choeng Mon Beach's climate page.

Choeng Mon Beach Temperature in December

Min Temperature 26°C (79°F)  

Max Temperature 29°C (84°F)  

Water Temperature 29°C (84°F) *  

Chance of Rain 46%  

Precipitation 147 mm (5.8 in)  

Rainy days 14 days  

Humidity 82% *  

Sunshine 177 hours *  

Percentage Sunshine *  

* Data from: Koh Samui, Thailand (14 KM, 9 Miles).

Daily Historical Temperatures

48-year average (1976-2025)

Based on our historical records, temperatures in Choeng Mon Beach typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).

Average temperatures in December

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

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

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

Daily Historical Precipitation

48-year average (1976-2025)

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

Average precipitation in December

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

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 Choeng Mon Beach in December

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

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

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

Choeng Mon Beach historical weather extremes in December

Based on 39 years of weather observations in Choeng Mon Beach between 1986 and 2025, these are the recorded extremes.

• The warmest day in December was on December 11, 2023, with a maximum of 34°C (93°F).
• On December 25, 1999, Choeng Mon Beach saw its coldest December day with temperatures maxing out at 24°C (75°F).
• Nighttime temperatures dropped to 20°C (68°F) on December 21, 1999, marking the coldest December night on record.

What to Wear in Choeng Mon Beach in December

Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Choeng Mon Beach in December

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 Choeng Mon Beach's climate page.

More climate data for Choeng Mon Beach

Temperature Rainfall Sunshine Humidity Water Temp

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