December Weather in Ranong, Thailand

Last updated: August 27, 2025

Experience the enchanting weather of Ranong, Thailand in December, where temperatures comfortably range from a maximum of 32°C (90°F) to a minimum of 20°C (68°F), creating a pleasant average of 25°C (78°F). This month, expect 118 mm (4.7 in) of rainfall spread across 14 days, contributing to the region's lush greenery. With a high humidity level of 83%, the atmosphere feels rich and tropical, perfect for exploring this picturesque destination. Whether you're soaking in the natural hot springs or lounging on the beaches, December in Ranong offers a wonderfully warm and inviting experience.

December Temperature in Ranong

December in Ranong, Thailand, marks a delightful transition as temperatures begin to cool slightly from the preceding months. With a minimum of 20°C (68°F) and a comfortable average of 25°C (78°F), the weather becomes pleasantly inviting for travelers. The maximum temperature of 32°C (90°F) still offers warmth but is less intense than the peak heat of the earlier months. This month serves as a subtle farewell to the sweltering summer, providing a refreshing atmosphere perfect for exploring Ranong’s lush landscapes and vibrant culture. As December unfolds, the mild climate is ideal for outdoor activities, making it an excellent time to visit this charming coastal town.

December Weather in Ranong: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ranong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ranong, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec798082818180807979797978
Data source: Temperature data for Ranong generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Ranong

In December, Ranong, Thailand experiences a notable transition in its precipitation patterns, with 118 mm (4.7 in) of rainfall measured over 14 days. This marks a decrease from the heavy downpours of the preceding months, where September and October recorded their peaks at 392 mm (15.4 in) and 366 mm (14.4 in), respectively. As the monsoon season begins to wane, December showcases the region’s shift towards drier weather, making it an ideal time for outdoor activities without the relentless rain. Despite the reduction in rainfall, the month remains indicative of the lush, tropical environment that characterizes Ranong, ensuring its vibrant landscapes continue to thrive even in the cooler, wetter months.

December Precipitation Trends in Ranong

The chart displays monthly precipitation patterns in Ranong, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ranong, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1332455233314276263300392366244119
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Ranong

In December, humidity in Ranong, Thailand, stands at a notable 83%, reflecting the area's characteristic lushness as it transitions into the cooler months. This figure is slightly lower than the peak levels seen in the summer months, where humidity often reaches a high of 88% in August. Interestingly, while January through March maintain relatively low humidity levels ranging from 68% to 72%, a significant rise occurs in April and continues through the end of the year, culminating in December's comfortable yet moist conditions. This gradual increase showcases Ranong's tropical climate, where humidity tends to elevate significantly as the rainy season progresses, enhancing the region's verdant landscapes and vibrant ecosystems.

December Average Humidity in Ranong

This chart illustrates the average monthly humidity levels in Ranong, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ranong is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%68%69%77%86%86%88%87%86%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ranong

In December, Ranong, Thailand experiences a UV Index of 11, maintaining its classification as an extreme exposure category, with a rapid burn time of just 10 minutes. This reflects a slight decline from the peak months of March and April, which recorded a UV Index of 15, yet remains consistent with the high levels observed through much of the year. Throughout the year, the region showcases a striking trend of sustained extreme UV exposure, with indices predominantly hovering between 11 and 15. It's crucial for residents and visitors to stay vigilant and take protective measures against the sun. For more detailed insights on UV levels throughout the year, check the full report at Ranong UV Index.

Maximum UV Index Levels in Ranong for December

The chart shows the monthly maximum UV Index (UVI) for Ranong in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Ranong typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111415151414141414141211
Data source: Ranong December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Ranong

December in Ranong, Thailand, shines brightly with an impressive 307 hours of sunshine, making it one of the sunniest months of the year. This period marks a delightful transition into winter, where residents and visitors alike bask in the warm rays that outshine several other months. Interestingly, the sunshine hours peak during the early months of the year, with March boasting the highest at 345 hours, before gradually tapering off into the rainy season. As the year draws to a close, December's sunny disposition remains a highlight, perfectly complementing the cooler temperatures and inviting outdoor exploration. With consistent sunshine throughout the month, December stands as a key time for enjoying all that Ranong has to offer under the clear blue skies.

Monthly Sunshine Duration in Ranong: December Highlighted

The December sunshine duration represents the total number of hours Ranong experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec249h308h345h314h305h287h297h284h264h275h288h307h
Data source: Ranong December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ranong During December

In December, Ranong, Thailand, ushers in a 42% chance of sunny weather, marking a notable increase compared to the dreary months preceding it. As the year draws to a close, December offers a refreshing break from the consistent cloud cover seen from June through November, which all hover around a mere 8% chance of sunshine. This increase signifies a shift in the weather pattern, as the tail end of the dry season begins to assert itself. With the sun making a more frequent appearance, December provides an inviting backdrop for outdoor activities and exploration in this picturesque region.

Percentage of Sunny Days in December in Ranong

The chart illustrates the percentage of sunny days in Ranong throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Ranong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%52%48%19%18%14%11%5%8%8%8%42%
Data source: Ranong December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ranong in December

In Ranong, Thailand, December ushers in a return to shorter days, offering 11 hours of daylight. This pattern mirrors the preceding months of January and October, creating a seasonal rhythm that is notably distinct from the longer stretches of 12 hours seen from March through September. As the year transitions to its cooler months, the daylight duration gently contracts, signaling a cozy embrace of the quieter end of the year. Overall, the daylight trends in Ranong reflect a harmonious balance between the longer days of summer and the shorter, tranquil days of winter, inviting residents and visitors alike to appreciate the beauty of each season.

Average Daylight Hours in Ranong for December

The chart illustrates the variation in daylight duration in Ranong throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 35m11h 47m12h 3m12h 20m12h 34m12h 41m12h 37m12h 25m12h 9m11h 52m11h 38m11h 31m
Data source: Ranong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Ranong

In December, the winds in Ranong, Thailand pick up a refreshing pace, averaging 3.2 m/s (7 mph). This slight increase from the lows of earlier months suggests a seasonal shift, setting the stage for a more invigorating atmosphere as the year draws to a close. Notably, December's wind speed stands as one of the highest for the year, only slightly trailing behind the breezy highs of July. As the festive season approaches, the brisk winds not only invigorate the coastal scenery but also invigorate the spirit, making it an ideal time for outdoor activities and exploration. This month encapsulates a trend where wind speeds align with the dynamic natural rhythms of the region, enhancing the charm of Ranong's picturesque setting.

Average December Wind Speed in Ranong

The chart displays monthly wind speed patterns in Ranong, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.12.52.31.92.12.93.32.92.52.62.43.2 m/s
Data source: Ranong December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Ranong Compares to Other Months

Weather in Ranong varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ranong, focusing on differences in temperature, rainfall, humidity, and UV levels.

December and January exhibit warm and humid weather, yet show some notable differences. In December, the temperature typically ranges from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with an average of 25°C (78°F). The month experiences considerable rainfall, averaging 118 mm (4.7 inches) over 14 days, leading to a high humidity level of 83%. In contrast, January sees a slight increase in average temperature to 26°C (79°F) and a peak of 33°C (92°F), while the minimal temperature remains the same. Precipitation rises slightly to 132 mm (5.2 inches), but it occurs over fewer rainy days, just 10 in total, resulting in a lower humidity of 72%. For more detailed weather statistics, check Ranong weather in January.

In comparing the weather of December and February, December presents a slightly cooler climate with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), along with higher humidity at 83%. This month also experiences significant precipitation, with 118 mm (4.7 in) spread across 14 days, making it relatively wetter. In contrast, February showcases warmer temperatures, with averages between 19°C (66°F) and 34°C (94°F), and notably lower humidity at 68%. Precipitation drops sharply to just 24 mm (0.9 in) over 6 days, indicating a much drier month overall. For more detailed insights, you can check Ranong weather in February.

In December, the weather in Ranong is characterized by warmer temperatures that range from a minimum of 20°C (68°F) to an average of 25°C (78°F), peaking at a maximum of 32°C (90°F). The month experiences significant rainfall, with precipitation totaling 118 mm (4.7 in) over about 14 days, leading to a high humidity level of 83%. In contrast, March sees a slight rise in average temperatures, with a minimum of 20°C (68°F) and an average of 28°C (82°F), reaching up to 36°C (97°F) at its hottest. Rainfall is notably lower in March, totaling just 55 mm (2.2 in) across 9 days, and the humidity drops to a more comfortable 68%. For a more detailed look at the weather specifics in March, check out Ranong weather in March.

In December, the weather is generally warm, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), maintaining an average of 25°C (78°F). This month also sees considerable precipitation, receiving 118 mm (4.7 in) over 14 rainy days, accompanied by high humidity at 83%. In contrast, April brings even warmer temperatures, with a minimum of 22°C (72°F) and a peak reaching 37°C (99°F), averaging 27°C (82°F). However, it is also wetter, experiencing 233 mm (9.2 in) of rainfall over 24 days, yet humidity is lower at 69%. For more details on the climate during this month, check out Ranong weather in April.

In December, temperatures in Ranong range from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with an average of 25°C (78°F). The month experiences considerable rainfall, accumulating 118 mm (4.7 in) over 14 days, accompanied by high humidity levels of 83%. In contrast, May sees even warmer temperatures, starting with a minimum of 23°C (73°F) and peaking at 36°C (97°F), with an average of 27°C (81°F). This month is significantly wetter, receiving 314 mm (12.4 in) of precipitation over 28 days, while the humidity decreases slightly to 77%. For more specific details, you can check Ranong weather in May.

December and June in Ranong present distinct weather patterns. December typically experiences milder temperatures, with a minimum of 20°C (68°F) and an average of 25°C (78°F), while June sees slightly warmer conditions, with a minimum of 23°C (74°F) and an average of 27°C (81°F). Precipitation is notably higher in June, accumulating to 276 mm (10.9 in) over 26 days, compared to December's 118 mm (4.7 in) over 14 days, making June significantly wetter. Both months have high humidity levels, but June's 86% outpaces December's 83%. For more insights about June's weather, you can check out Ranong weather in June.

In comparing the weather between December and July, December showcases a slightly more moderate climate, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F) and an average temperature of 25°C (78°F). This month experiences 118 mm (4.7 in) of precipitation over approximately 14 days and maintains a humidity level of 83%.

In contrast, July is warmer overall, with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 33°C (91°F), averaging 26°C (80°F). However, it is also considerably wetter, receiving 263 mm (10.4 in) of rainfall across about 28 days, coupled with a higher humidity of 86%. For more detailed insights on the weather during this month, you can visit Ranong weather in July.

When comparing the weather in December and August, there are distinct differences in temperature, precipitation, and humidity. December features a more moderate temperature range, with a minimum of 20°C (68°F) and a maximum of 32°C (90°F), while August has slightly warmer temperatures, ranging from 23°C (73°F) to a peak of 33°C (91°F). Notably, August experiences significantly higher precipitation, totaling 300 mm (11.8 in) over 27 days compared to December’s 118 mm (4.7 in) over just 14 days. Humidity levels are also higher in August at 88%, compared to December’s 83%. For more details on August weather, you can check this link: Ranong weather in August.

In comparing December and September weather, December tends to be slightly cooler, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), while September is warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F). December experiences less rainfall, totaling 118 mm (4.7 in) over 14 days, compared to September's significantly higher precipitation of 392 mm (15.4 in) over 27 days. Additionally, humidity remains relatively high in both months, with December averaging 83% and September slightly higher at 87%. For more detailed information on Rainfall and weather patterns, you can check Ranong weather in September.

In comparing the weather between December and October, December tends to be slightly cooler with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), averaging around 25°C (78°F). In contrast, October features warmer temperatures, peaking at 33°C (92°F) with an average of 26°C (79°F) and a minimum of 22°C (73°F). However, October also experiences significantly more rainfall, receiving 366 mm (14.4 in) over 29 days, compared to December's 118 mm (4.7 in) spread across 14 days. The humidity levels are quite similar, with December at 83% and October at 86%. For more details on the weather in October, you can visit Ranong weather in October.

In comparing the weather conditions between November and December, we observe that December experiences slightly lower temperatures, with a minimum of 20°C (68°F) and a maximum of 32°C (90°F), compared to November's minimum of 21°C (70°F) and maximum of 33°C (91°F). Additionally, December is characterized by reduced precipitation levels, totaling 118 mm (4.7 in) over 14 rainy days, while November sees significantly more rain at 244 mm (9.6 in) during 24 days. Humidity is also marginally lower in December at 83% compared to November's 87%. This transition marks a slight shift toward more moderate weather as the year comes to a close. For more details, check Ranong weather in November.

Compare Ranong's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Ranong

As December rolls in, Ranong experiences a notable shift in its weather, standing out among the other months. While the temperatures remain comfortably warm during the day, the evenings are refreshingly cool, making it an ideal time for outdoor activities. This month ushers in a significant increase in precipitation, with nearly half of the days seeing some rain, contributing to a lush and vibrant landscape. Coupled with high humidity, December's weather offers a unique tropical experience that is both soothing and invigorating. For a deeper dive into how December fits into the broader trends of the region, check out the Ranong Climate.