Rayong Province Weather in January

Average temperatures, rainfall, sunshine and the best places to visit in Rayong Province, Thailand in January.

🔎
Koh Samet Rayong Ban Chang Mae Pim

Thinking about venturing to Rayong Province, Thailand this January and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Rayong Province in January

Rayong Province, Thailand is a region in Thailand. January in Rayong Province generally has very warm temperatures, with low precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 25°C (77°F) in Koh Samet. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

To learn more about the conditions in specific areas of Rayong Province, Thailand, check out the map below.

Precipitation

January is a dry month with an average rainfall of around 28 mm (1.1 in) in Koh Samet.

Average sunshine

January brings good sunshine to many areas. Koh Samet sees around 230 hours of sunlight, great for visitors looking for bright days.

Explore Rayong Province by month

Pick a month to see the average temperature, rainfall and sunshine in Rayong Province — and find the best time to visit. (based on Koh Samet)

January30°C (86°F) February30°C (86°F) March31°C (88°F) April31°C (88°F) May31°C (88°F) June31°C (88°F) This monthJuly31°C (88°F) August30°C (86°F) September30°C (86°F) October30°C (86°F) November31°C (88°F) December31°C (88°F)
Best Time to Visit Rayong Province →

Best Places to Visit in Rayong Province in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Rayong Province.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Rayong Province

What is the weather like in January for some of the most popular destinations in Rayong Province, Thailand?

Temperature range in Rayong Province (January)

Precipitation variation in Rayong Province (January)

Koh Samet

In January Koh Samet generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 25°C (77°F) and low monthly rainfall. So on average the conditions are perfect that month.

« December
January
February »
December
January
February
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
230 hours
230 hours
212 hours
Monthly rainfall
16 mm (0.6 in)
28 mm (1.1 in)
29 mm (1.1 in)
Monthly rainy days
a single day
2 days
4 days
Weather conditions
perfect
perfect
perfect
Climate in Koh Samet →

Rayong

In January Rayong generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

« December
January
February »
December
January
February
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
230 hours
230 hours
212 hours
Monthly rainfall
17 mm (0.7 in)
29 mm (1.1 in)
35 mm (1.4 in)
Monthly rainy days
a single day
2 days
4 days
Weather conditions
perfect
perfect
pleasant
Climate in Rayong →

Ban Chang

In January Ban Chang generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

« December
January
February »
December
January
February
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
230 hours
230 hours
212 hours
Monthly rainfall
17 mm (0.7 in)
28 mm (1.1 in)
27 mm (1.1 in)
Monthly rainy days
2 days
2 days
4 days
Weather conditions
perfect
perfect
perfect
Climate in Ban Chang →

Mae Pim

In January Mae Pim generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

« December
January
February »
December
January
February
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
228 hours
231 hours
181 hours
Monthly rainfall
14 mm (0.6 in)
26 mm (1 in)
33 mm (1.3 in)
Monthly rainy days
a single day
2 days
4 days
Weather conditions
perfect
perfect
pleasant
Climate in Mae Pim →

Ban Phe

In January Ban Phe generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

« December
January
February »
December
January
February
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
230 hours
230 hours
212 hours
Monthly rainfall
15 mm (0.6 in)
27 mm (1.1 in)
30 mm (1.2 in)
Monthly rainy days
a single day
2 days
4 days
Weather conditions
perfect
perfect
perfect
Climate in Ban Phe →

Is your destination not in the list? Have a look at all destinations in Rayong Province, in Thailand.

In our records: Thailand January extremes

Notable January records observed across cities in Thailand in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the coldest January daytime high in Thailand was 10°C (50°F) in Chiang Rai on January 25, 2016.

Popular cities in January

Day & night temperatures, rainfall and average weather in Rayong Province in January.

City Weather Day temp Night temp Rainfall
Koh Samet 30°C (86°F) 25°C (77°F) 28 mm (1.1 in)
Rayong 32°C (90°F) 24°C (75°F) 29 mm (1.1 in)
Ban Chang 32°C (90°F) 24°C (75°F) 28 mm (1.1 in)
Mae Pim 31°C (88°F) 24°C (75°F) 26 mm (1 in)
Ban Phe 31°C (88°F) 24°C (75°F) 27 mm (1.1 in)
Klaeng 31°C (88°F) 24°C (75°F) 27 mm (1.1 in)

Rayong Province weather in January: frequently asked questions

What is the weather like in Rayong Province, Thailand in January?

In January, Rayong Province, Thailand generally has pleasant weather conditions. Koh Samet sees daytime temperatures near 30°C (86°F), with nights cooling to roughly 25°C (77°F).

What is the average temperature in Rayong Province, Thailand in January?

Koh Samet averages a daytime maximum of 30°C (86°F) in January, with overnight lows close to 25°C (77°F).

Does Rayong Province, Thailand get a lot of rain in January?

Rain is generally moderate to light in Rayong Province, Thailand during January, with Koh Samet averaging close to 28 mm (1.1 in).

Is January a Good Time to Visit Rayong Province, Thailand?

We consider January to be one of the best times to travel to Rayong Province, Thailand. Typically, the climate in Koh Samet is perfect. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in January, February and December offering mostly pleasant weather in Koh Samet. On the other hand, the months of May, June, July, August, September and October tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Rayong Province.

Weather and climate has detailed information for every country in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Discover Kok Kood: a hidden gem in Thailand

Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
Discover Thailand: An Ultimate Guide for Yogis

Explore Thailand's best for yogis: serene retreats, spiritual growth, and adventure. Dive into yoga, meditation, and nature's tranquility for an unforgettable journey.
Trekking in Northern Thailand

One of the most beautiful attractions in Thailand is trekking along mountain villages north of Chiang Mai. The best time to trek is November until February.

Elephant Haven in Thailand: Kindred Spirit Sanctuary

Explore the Kindred Spirit Elephant Sanctuary in Thailand. Experience hiking, observe elephants in nature, and see the positive impact on the community.
Must visit in Thailand →