Rayong Province Weather in December

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

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Koh Samet Rayong Ban Chang Mae Pim

Planning a trip to Rayong Province, Thailand this December? Here's what you need to know about the weather:

What to Expect in Rayong Province in December

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

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°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.

For specific regional insights in Rayong Province, Thailand, refer to the map provided below.

Precipitation

December is a dry month with an average rainfall of around 16 mm (0.6 in) in Koh Samet. In Koh Samet, this particular month consistently records the lowest levels of rainfall, making it the driest period throughout the entire year.

Average sunshine

Sunshine is generally plentiful throughout many areas. Koh Samet enjoys about 230 hours of sunlight, ideal for those seeking sunny weather.

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 December

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 December for some of the most popular destinations in Rayong Province, Thailand?

Temperature range in Rayong Province (December)

Precipitation variation in Rayong Province (December)

Koh Samet

In December Koh Samet generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and low monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
31°C (88°F)
31°C (88°F)
30°C (86°F)
Min temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
191 hours
230 hours
230 hours
Monthly rainfall
50 mm (2 in)
16 mm (0.6 in)
28 mm (1.1 in)
Monthly rainy days
8 days
a single day
2 days
Weather conditions
pleasant
perfect
perfect
Climate in Koh Samet →

Rayong

In December 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.

« November
December
January »
November
December
January
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
191 hours
230 hours
230 hours
Monthly rainfall
58 mm (2.3 in)
17 mm (0.7 in)
29 mm (1.1 in)
Monthly rainy days
8 days
a single day
2 days
Weather conditions
pleasant
perfect
perfect
Climate in Rayong →

Ban Chang

In December 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.

« November
December
January »
November
December
January
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
191 hours
230 hours
230 hours
Monthly rainfall
56 mm (2.2 in)
17 mm (0.7 in)
28 mm (1.1 in)
Monthly rainy days
8 days
2 days
2 days
Weather conditions
pleasant
perfect
perfect
Climate in Ban Chang →

Mae Pim

In December 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.

« November
December
January »
November
December
January
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
191 hours
228 hours
231 hours
Monthly rainfall
48 mm (1.9 in)
14 mm (0.6 in)
26 mm (1 in)
Monthly rainy days
7 days
a single day
2 days
Weather conditions
pleasant
perfect
perfect
Climate in Mae Pim →

Ban Phe

In December 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.

« November
December
January »
November
December
January
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
191 hours
230 hours
230 hours
Monthly rainfall
51 mm (2 in)
15 mm (0.6 in)
27 mm (1.1 in)
Monthly rainy days
8 days
a single day
2 days
Weather conditions
pleasant
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 December extremes

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

  • Based on our data, the coldest December night in Thailand dropped to 2°C (36°F) in Chiang Rai on December 25, 1999.

Popular cities in December

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

City Weather Day temp Night temp Rainfall
Koh Samet 31°C (88°F) 25°C (77°F) 16 mm (0.6 in)
Rayong 32°C (90°F) 24°C (75°F) 17 mm (0.7 in)
Ban Chang 32°C (90°F) 24°C (75°F) 17 mm (0.7 in)
Mae Pim 31°C (88°F) 24°C (75°F) 14 mm (0.6 in)
Ban Phe 31°C (88°F) 24°C (75°F) 15 mm (0.6 in)
Klaeng 31°C (88°F) 24°C (75°F) 15 mm (0.6 in)

Rayong Province weather in December: frequently asked questions

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

Expect pleasant weather across Rayong Province, Thailand in December. The popular destination of Koh Samet averages 31°C (88°F) by day and 25°C (77°F) at night during this month.

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

Koh Samet averages a daytime maximum of 31°C (88°F) in December, with overnight lows close to 25°C (77°F).

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

Rain is generally moderate to light in Rayong Province, Thailand during December, with Koh Samet averaging close to 16 mm (0.6 in).

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

We believe that December is one of the best times to visit Rayong Province, Thailand with overall perfect weather in Koh Samet. 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. In contrast, 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.

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