Koh Tao Weather in January
January is one of the perfect months to visit Koh Tao, with daytime temperatures of 29°C (84°F) and lows of 26°C (79°F) at night. Do note that quite a bit of rainfall is typical, averaging around 72 mm (2.8 in).
Rainfall in Koh Tao in January
Records from the past 30 years suggest around 8 days of rain, with 72 mm (2.8 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 Koh Tao in January
If you're visiting Koh Tao in January, expect perfect temperatures with highs of 29°C (84°F) and overnight lows of 26°C (79°F). Overall, the month follows a fairly predictable daily temperature pattern. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Sunshine in Koh Tao in January
The month enjoys around 200 hours of sunshine, creating mostly sunny days with good weather conditions.If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Koh Tao.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Koh Tao's climate page.
Koh Tao Temperature in January
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
28%
Precipitation
72 mm (2.8 in)
Rainy days
8 days
Humidity
83% *
Sunshine
200 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2026)
Based on our historical records, temperatures in Koh Tao typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in January
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
Historical weather for Koh Tao in January
Browse day-by-day weather records for Koh Tao spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Koh Tao historical weather extremes in January
Based on weather observations in Koh Tao between 1993 and 2025, these are the recorded extremes during January.
- Koh Tao recorded its highest January temperature of 34°C (93°F) on January 23, 2023.
- The lowest daytime temperature in January was 24°C (75°F), recorded on January 23, 2000.
- Nighttime temperatures dropped to 21°C (70°F) on January 17, 2023, marking the coldest January night on record.
Best Places in Thailand in January
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Koh Tao in January
Warm weather calls for comfortable, breathable clothing in January. 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). Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Koh Tao in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Koh Tao's climate page.
Temperature Rainfall Sunshine Humidity
See the full Koh Tao climate overview or explore weather in Thailand.
