Last updated: March 19, 2025
Experience Trincomalee, Sri Lanka in December, where the climate combines warmth and moisture. With a maximum temperature reaching 30°C (85°F) and an average of 26°C (80°F), the days are pleasantly warm. Nights cool down to a minimum of 23°C (74°F), creating a comfortable atmosphere. Be prepared for significant rainfall this month, as precipitation totals around 268 mm (10.5 in) over 21 days. High humidity levels of 83% contribute to the tropical feel, making it essential to embrace the seasonal character of this stunning coastal destination.
In Trincomalee, Sri Lanka, December marks a transitional period as temperatures begin to cool slightly from the intense heat of the preceding months. With a minimum of 23°C (74°F) and a maximum reaching 30°C (85°F), the month offers a welcome respite, while the average temperature hovers around 26°C (80°F). This is a notable dip from the searing highs of May and September, which can soar to 36°C (96°F). As the year draws to a close, visitors can expect warm, yet comfortable weather, perfect for enjoying the stunning coastal scenery and vibrant local culture. This trend highlights a gradual shift towards the cooler, dryer conditions of early 2024, making December an ideal time to explore this picturesque destination.
In December, Trincomalee experiences a significant uptick in precipitation, with 268 mm (10.5 in) of rainfall recorded over an average of 21 days. This marks a noteworthy continuation of the wet season that peaks in November, where the region sees its highest rainfall of 359 mm (14.2 in). Following this trend, December also showcases an increase from the preceding months, with October already bringing 199 mm (7.8 in) over 20 days. The rainfall during this month signifies a transition into the cooler months, enriching the surrounding landscape while also posing challenges for outdoor activities. Overall, December embodies the culmination of a year marked by fluctuating rainfall, highlighting Trincomalee's unique climatic patterns.
In December, Trincomalee experiences a humidity level of 83%, maintaining a trend of consistently high moisture throughout the year. As the final month of the year, December showcases a slight dip compared to the peak 85% humidity recorded in August, yet remains elevated, reflecting the region's tropical climate. The data reveals an intriguing pattern: humidity tends to be at its highest during the mid-year months of June through August, before gradually tapering off in the fall, only to stabilize again as the year concludes. This consistent humidity creates a lush environment, ideal for both vegetation and the vibrant local culture, while also allowing visitors to experience the warm embrace of Trincomalee's coastal allure.
In December, Trincomalee experiences a UV Index of 10, indicating a very high exposure level, with a burn time of approximately 15 minutes. This marks a slight decrease from the peak indices seen in the previous months, where the UV levels frequently reached extreme heights, particularly in March when the index surged to a notable 15. Despite this reduction, caution is still essential, as UV radiation remains intense and can lead to skin damage with prolonged exposure. The trend throughout the year consistently showcases the need for sun protection, especially during the peak months of February and March. For more detailed insights, you can check the full Trincomalee UV Index.
UV Risk Categories
In Trincomalee, Sri Lanka, December welcomes a delightful blend of sunshine, boasting approximately 295 hours of bright days. As the year draws to a close, the region experiences a slight dip from November's 280 hours, but remains notably vibrant compared to the more sultry months of mid-year. Notably, this coastal paradise consistently enjoys over 300 hours of sunlight from February through July, peaking in March with 346 hours. The transition into the cooler months reveals a gentle ebb in sunshine hours, yet December's warmth and luminosity create a picturesque backdrop for the perfect holiday escape. With its tropical allure, Trincomalee offers both relaxation and adventure, making it an ideal destination as the year wraps up.
In Trincomalee, Sri Lanka, the likelihood of sunny weather in December stands at a promising 47%, marking a notable rise compared to the preceding months. This trend hints at a gradual increase in sunshine, notably from the low point of August (8%) through to November (15%). The approaching year-end seems to usher in more favorable conditions, leading into January, which starts the new year with a 21% chance of sunshine. While December's weather may not be guaranteed, it certainly offers a brighter prospect compared to the gloomier months of late summer and autumn, making it an enticing time for visitors seeking sun-kissed experiences along Trincomalee’s stunning coastline.
In Trincomalee, Sri Lanka, December marks a continuation of the trend seen in the previous months, with daylight lasting for 11 hours. The year begins with a consistent 11 hours of daylight in January and February, gradually increasing to 12 hours from March through October. This peak duration is sustained for a robust seven months, reflecting the region's tropical climate and equatorial position. As November arrives, daylight gently tapers back to 11 hours, culminating in the same length by December. This rhythmic ebb and flow of daylight highlights the stable, predictable patterns experienced in this coastal paradise, ensuring a blend of vibrant sunrises and serene sunsets year-round.
As December arrives in Trincomalee, Sri Lanka, the winds tend to calm, with an average speed of 3.9 m/s (9 mph). This reflects a trend seen throughout the final months of the year, where wind speeds dip slightly after peaking in June and July at 5.8 m/s (13 mph). While January and February usher in the year with gentle breezes of around 4.0 to 4.2 m/s, the month of May brings a refreshing uptick to 4.6 m/s (10 mph), signaling a transition to the more blustery summer months. As the calendar shifts toward the festive end of the year, the consistent yet mild winds of December create a serene atmosphere, perfect for enjoying Trincomalee’s stunning coastal views and vibrant culture.
The weather in Trincomalee changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Trincomalee and find detailed weather information for every month.
December and January both showcase warm temperatures, but they differ notably in precipitation levels and humidity. In December, the weather is slightly warmer with minimum temperatures around 23°C (74°F) and maximums reaching 30°C (85°F), accompanied by a significant amount of rainfall totaling 268 mm (10.5 in) over 21 days and high humidity at 83%. In contrast, January offers slightly cooler temperatures, with minimums of 21°C (70°F) and maximums of 29°C (84°F). The precipitation drops to 130 mm (5.1 in), occurring over 13 days, and humidity decreases to 79%. For more detailed weather insights, you can explore Trincomalee weather in January.
In comparing the weather of December and February, December tends to be wetter and more humid. December features average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 30°C (85°F), while February sees slightly cooler conditions, with a minimum of 22°C (72°F) and the same maximum of 30°C (86°F). The precipitation in December is significantly higher at 268 mm (10.5 in) over 21 days, compared to February's 56 mm (2.2 in) over just 12 days. Additionally, the humidity drops from 83% in December to 75% in February, making the latter month feel a bit more comfortable. For those looking for more specific details, you can check out Trincomalee weather in February.
December and March both exhibit warm temperatures, but March tends to be slightly hotter with a maximum of 32°C (91°F) compared to December's 30°C (85°F). The average temperature in March is also marginally higher at 27°C (81°F) versus December's 26°C (80°F). However, December is characterized by significantly higher rainfall, with 268 mm (10.5 in) over 21 days, while March sees much less precipitation at 49 mm (1.9 in) across only 11 days. Humidity is notably higher in December at 83%, while March experiences a lower humidity level of 76%. For more detailed insights, you can check Trincomalee weather in March.
In December, the weather is typically warm and humid, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 30°C (85°F). This month sees significant rainfall, accumulating around 268 mm (10.5 in) over 21 days, contributing to a humidity level of 83%. In contrast, April offers a hotter climate, with temperatures starting at a minimum of 25°C (77°F) and soaring to a maximum of 35°C (95°F). The month is much drier, with only 38 mm (1.5 in) of precipitation over 9 days, resulting in lower humidity at 72%. For more detailed information, you can check Trincomalee weather in April.
In December, the weather is characterized by milder temperatures, with an average of 26°C (80°F) and a maximum of 30°C (85°F). However, it is also a wetter month, receiving 268 mm (10.5 in) of precipitation over 21 days and exhibiting high humidity levels at 83%. In stark contrast, May features warmer temperatures, with an average of 29°C (85°F) and maximums reaching up to 36°C (96°F). The precipitation decreases significantly to 65 mm (2.6 in) over just 12 days, accompanied by a lower humidity of 75%. For a closer look at the specific weather conditions in Trincomalee during May, you can check out Trincomalee weather in May.
In December, the weather is characterized by milder temperatures, with averages around 26°C (80°F) and maximums reaching up to 30°C (85°F). However, it is also a month of considerable precipitation, experiencing an average of 268 mm (10.5 in) spread over 21 days, leading to higher humidity levels of 83%. In contrast, June brings warmer conditions, with daily averages rising to 30°C (86°F) and highs soaring to 35°C (95°F). This month sees significantly less rainfall, averaging only 20 mm (0.8 in) over just 3 days, accompanied by a slightly lower humidity level of 82%. For a detailed look at weather conditions during this time, you can visit Trincomalee weather in June.
December and July present contrasting weather patterns in terms of temperature and precipitation. In December, temperatures range from a minimum of 23°C (74°F) to a maximum of 30°C (85°F), with an average of 26°C (80°F). This month experiences significant rainfall, with 268 mm (10.5 in) spread over 21 days, contributing to a high humidity level of 83%. In contrast, July offers slightly warmer conditions, with temperatures ranging from a minimum of 25°C (78°F) to a maximum of 35°C (95°F), averaging 29°C (85°F). Rainfall is noticeably lower in July, with only 46 mm (1.8 in) over just 8 days and humidity at a comfortable 80%. For more details about July weather conditions in Trincomalee, visit Trincomalee weather in July.
When comparing the weather in December and August, there are notable differences in temperature, precipitation, and humidity. December experiences slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 26°C (80°F), while August is warmer, featuring a minimum of 25°C (77°F) and an average of 29°C (84°F). Precipitation levels in December are significantly higher, with about 268 mm (10.5 in) over 21 days, compared to August's much drier 48 mm (1.9 in) over just 8 days. Humidity remains relatively consistent, with December at 83% and August slightly higher at 85%. For a more detailed look at conditions during the summer month, you can check Trincomalee weather in August.
In comparing December and September weather, December tends to be slightly cooler, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 30°C (85°F), whereas September is warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 36°C (96°F). December also experiences significantly higher precipitation, with 268 mm (10.5 in) falling over 21 days, compared to September's 73 mm (2.9 in) over 12 days. Humidity levels are quite similar, with December at 83% and September at 82%. Overall, while December offers milder temperatures, it brings heavier rainfall, making September a drier and hotter month. For more details on September weather, you can visit Trincomalee weather in September.
In comparing the weather of December and October, December tends to be slightly cooler with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 30°C (85°F), while October is warmer, featuring a range from a minimum of 25°C (76°F) to a much higher maximum of 34°C (93°F). Additionally, December experiences more rainfall, with total precipitation measuring 268 mm (10.5 in) over 21 days, compared to October's 199 mm (7.8 in) spread over 20 days. Despite these differences, both months share similar humidity levels at 83%. For those interested in more details, you can check out Trincomalee weather in October.
When comparing the weather in December to November, we see some notable differences. December has a slightly cooler temperature range, with minimums at 23°C (74°F) and maximums at 30°C (85°F), while November is a bit warmer overall, displaying a minimum of 24°C (75°F) and a maximum of 31°C (89°F). Precipitation levels are lower in December, with 268 mm (10.5 in) over 21 days, compared to November's 359 mm (14.2 in) over 25 days. Humidity remains relatively stable, sitting at 83% in December and 84% in November. For a more detailed overview of the conditions in November, you can check Trincomalee weather in November.
As December unfolds in Trincomalee, the weather transitions to a more humid and rainy phase compared to the preceding months. With temperatures hovering around a comfortable average of 26°C (80°F), the warmth remains enjoyable but is often accompanied by increased precipitation, totaling 268 mm over 21 days. This month marks a notable shift, as the region's humidity reaches 83%, inviting lush greenery and vibrant landscapes. For travelers anticipating a tropical experience, December’s weather presents both challenges and charm, calling for a balance of sunshine and occasional showers. To explore more about the specifics of Trincomalee’s climate, check out Trincomalee Climate.