Last updated: March 19, 2025
Experience the vibrant December weather of Dehiwala-Mount Lavinia, Sri Lanka, where temperatures fluctuate between a maximum of 31°C (89°F) and a minimum of 23°C (74°F), creating a warm and inviting atmosphere. The average temperature settles around a comfortable 27°C (81°F), perfect for outdoor activities and exploration. Expect a somewhat wet month with 199 mm (7.8 in) of rainfall over 18 days, bringing a lushness to the landscapes. With humidity levels hovering around 80%, the air is pleasantly tropical, making December a unique and delightful time to visit this coastal gem.
In Dehiwala-Mount Lavinia, December brings a delightful transition as temperatures begin to cool slightly from the preceding months. With minimums around 23°C (74°F) and maximums reaching up to 31°C (89°F), the month maintains an inviting warmth, especially for those seeking sun-soaked adventures. The average temperature holds steady at 27°C (81°F), mirroring the pleasant consistency seen throughout the year. As rainfall increases towards the end of the year, the humid tropical climate subtly shifts, paving the way for a refreshing atmosphere. This month, like its predecessors, continues to offer a perfect blend of heat and coastal breezes, making it an ideal time for both relaxation and exploration in this vibrant part of Sri Lanka.
December in Dehiwala-Mount Lavinia, Sri Lanka, brings a notable shift in precipitation patterns as the region transitions from the heavy rains of the earlier months. With an average precipitation of 199 mm (7.8 in), December experiences a significant reduction compared to the 343 mm (13.5 in) seen in October and 302 mm (11.9 in) in November. Rainfall is spread over approximately 18 days, marking a decrease in rainy days compared to the preceding months like April and October, which have higher frequency of rain. This trend suggests a gradual easing of monsoon conditions, paving the way for a more temperate end to the year, while still leaving remnants of the wet season evident. The blend of diminishing rain and warm temperatures creates a unique climate, ideal for enjoying the lush landscapes that characterize this coastal paradise.
In December, the humidity in Dehiwala-Mount Lavinia remains notably high at 80%, mirroring the elevated moisture levels of the preceding months. Following a gradual increase from 73% in February to July's peak of 83%, humidity levels stabilize somewhat as the year nears its end. This moderate December humidity provides a pleasant, if slightly sticky, atmosphere, characteristic of Sri Lanka's coastal climate. With the arrival of the wet season, residents and visitors alike can expect a lush landscape, as the consistent humidity supports vibrant flora throughout the region.
Throughout the year, Dehiwala-Mount Lavinia, Sri Lanka, experiences consistently extreme UV Index levels that highlight the need for sun safety. While January to April sees an increasing trend, peaking at UV Index 15 in April, subsequent months maintain high values, ranging between 12 and 14. Interestingly, December marks a slight decrease to a UV Index of 10, categorized as very high, which extends the safe exposure time to 15 minutes. This trend underscores the importance of vigilance when outdoors, as the sun's intensity remains significant year-round. For more detailed information on sun exposure and protection, visit the Dehiwala-Mount Lavinia UV Index.
UV Risk Categories
As the year draws to a close, December in Dehiwala-Mount Lavinia offers an inviting blend of warmth and light, boasting 312 hours of sunshine. This encapsulates a delightful trend observed throughout the year, where daylight hours peak in the early months, with March leading the way at 336 hours. Notably, the sunshine duration remains consistently strong from January through December, with only slight variations, particularly in the mid-year months. After a gradual decrease in November, December's sunshine serves as a gentle reminder of the region's tropical allure, making it a popular time for both locals and travelers to bask in the golden rays of the Sri Lankan sun.
In Dehiwala-Mount Lavinia, December brings a notable shift in weather patterns, offering a promising 53% chance of sunny days. This makes it one of the sunniest months of the year, contrasting sharply with the preceding November, which sees just a 15% chance of sunshine. As the year progresses from the intense heat of summer into late monsoon, the likelihood of sun begins to rise significantly. With December’s sunshine potential, it becomes an ideal time for locals and travelers alike to enjoy the coastal beauty and vibrant atmosphere, embracing the warmth of the sun before the year concludes.
In Dehiwala-Mount Lavinia, December marks a return to shorter days, with the duration of daylight settling at 11 hours. This trend resonates with the months before and after December, as both January and November also provide the same amount of sunlight. Notably, from March to August, the area enjoys extended daylight of 12 hours, creating a vibrant atmosphere perfect for outdoor activities. However, with the onset of late autumn, daylight gradually diminishes, signaling a seasonal transition. Overall, the pattern observed throughout the year highlights a consistent fluctuation in daylight that reflects the tropical climate’s rhythmic changes.
As December rolls into Dehiwala-Mount Lavinia, the coastal breeze softens to an average wind speed of 3.2 m/s (7 mph). This shift marks a notable decrease from the spirited gusts of mid-year, where winds peaked at 5.8 m/s (13 mph) in July. The trend throughout the year reflects a dynamic coastal climate, with wind speeds gradually rising from 3.2 m/s in January to a summer high in July, before settling back to a gentler pace in the later months. December's calming winds create a perfect backdrop for outdoor enthusiasts and beachgoers, inviting them to bask in the warm sun while enjoying the refreshing kiss of the ocean breeze.
The weather in Dehiwala-Mount Lavinia 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 Dehiwala-Mount Lavinia and find detailed weather information for every month.
In December, the weather is warm with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (89°F), averaging around 27°C (81°F). This month is characterized by significant rainfall, with 199 mm (7.8 in) of precipitation spread over 18 days, contributing to a humidity level of 80%.
In contrast, January sees a slight dip in temperature, with a minimum of 22°C (73°F) and a maximum of 32°C (91°F), while still maintaining the same average of 27°C (81°F). However, the rain significantly decreases to 59 mm (2.3 in) over just 7 days, and the humidity drops slightly to 77%. For more specific details about January's weather, you can check Dehiwala-Mount Lavinia weather in January.
December and February present distinct weather patterns, making each month unique in its own right. In December, temperatures typically range from a minimum of 23°C (74°F) to a maximum of 31°C (89°F), with an average of 27°C (81°F). The month experiences substantial rainfall, totaling 199 mm (7.8 in) over 18 days, resulting in a relatively high humidity level of 80%. In contrast, February sees a slight increase in average temperature to 28°C (82°F), with maximums reaching 33°C (91°F). Precipitation significantly drops to 58 mm (2.3 in) over just 10 days, and humidity decreases to 73%. This shift creates a drier and warmer atmosphere as the year progresses. For more detailed insights, check out the Dehiwala-Mount Lavinia weather in February.
December and March showcase distinct weather patterns in Dehiwala-Mount Lavinia. In December, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (89°F), with an average of 27°C (81°F). This month is characterized by high humidity levels at 80% and significant rainfall, totaling 199 mm (7.8 in) over 18 days. In contrast, March experiences slightly warmer temperatures, with a minimum of 25°C (77°F) and a maximum of 33°C (91°F), averaging 28°C (83°F). The precipitation decreases to 118 mm (4.6 in), falling on 19 days, while humidity drops to 74%. For a more detailed look at the weather during March, visit Dehiwala-Mount Lavinia weather in March.
In comparing the weather between December and April, December is characterized by slightly cooler temperatures, with an average of 27°C (81°F) compared to April's average of 28°C (83°F). However, April tends to experience higher maximum temperatures, reaching up to 32°C (91°F), while December maxes out at 31°C (89°F). Precipitation levels are also notable; December sees significantly more rainfall with 199 mm (7.8 in) over 18 rainy days, while April has less, at 133 mm (5.3 in) spread across 25 days. Moreover, December's humidity is higher at 80%, compared to 74% in April, contributing to a different overall feel for each month. For more specific details, you can check Dehiwala-Mount Lavinia weather in April.
In December, the weather is characterized by warm temperatures, with a minimum of 23°C (74°F), an average of 27°C (81°F), and a maximum of 31°C (89°F). However, it is also a wetter month, receiving 199 mm (7.8 in) of precipitation over 18 days, contributing to a high humidity level of 80%. In contrast, May experiences slightly higher temperatures, with a minimum of 25°C (78°F), an average of 28°C (83°F), and a maximum of 32°C (90°F). The month sees even more rainfall, totaling 302 mm (11.9 in) over 29 days, though the humidity is a bit lower at 76%. For a more detailed comparison, you can check Dehiwala-Mount Lavinia weather in May.
In December, the weather features a warm climate characterized by minimum temperatures of 23°C (74°F) and a daily average of 27°C (81°F), peaking at 31°C (89°F). The month experiences significant rainfall, totaling 199 mm (7.8 in) across 18 days, with humidity levels around 80%. In contrast, June showcases slightly warmer conditions with minimum temperatures of 25°C (78°F) and an average of 28°C (82°F), while the maximum reaches 30°C (87°F). However, it also sees increased precipitation, measuring 269 mm (10.6 in) over 28 days and a humidity level of 82%. For more detailed information, you can check out Dehiwala-Mount Lavinia weather in June.
In comparing the weather of December and July, we see that both months feature warm temperatures, but with slight variations. December experiences slightly lower minimum temperatures, ranging from 23°C (74°F) to a maximum of 31°C (89°F), while July starts a bit warmer with minimums at 25°C (77°F) and a maximum of 30°C (87°F). Humidity levels are quite similar, with December at 80% and July at 82%. Precipitation is notably high in both months, with December receiving 199 mm (7.8 in) over 18 days and July recording 188 mm (7.4 in) across 26 days. For more detailed information, check out Dehiwala-Mount Lavinia weather in July.
When comparing the weather in December and August, we see some notable similarities and differences. Both months feature an average temperature of 27°C (81°F), but December experiences a slightly lower minimum temperature of 23°C (74°F) compared to August's minimum of 25°C (77°F). However, August has a lower maximum temperature of 29°C (85°F), whereas December reaches up to 31°C (89°F). In terms of precipitation, August sees slightly more rain, totaling 205 mm (8.1 in) over 27 days, compared to December's 199 mm (7.8 in) over 18 days. Humidity levels are also a bit higher in August at 83% versus December's 80%. For a more detailed look at weather patterns, check out Dehiwala-Mount Lavinia weather in August.
In comparing the weather of December and September, we notice that both months share similar average temperatures, hovering around 27°C (81°F). December experiences slightly lower minimum and maximum temperatures, with a range from 23°C (74°F) to 31°C (89°F), compared to September's 25°C (77°F) to 30°C (86°F). However, precipitation levels are higher in September, with 238 mm (9.4 in) over 26 days, compared to December's 199 mm (7.8 in) across 18 days. Humidity levels are also slightly elevated in September at 82%, compared to December's 80%. For more detailed insights on the weather in September, you can check out Dehiwala-Mount Lavinia weather in September.
December and October offer somewhat similar temperature profiles, with both months experiencing average temperatures around 27°C (81°F). However, October tends to start a bit warmer, with a minimum of 24°C (76°F) compared to December's 23°C (74°F). While December reaches a max of 31°C (89°F), October's peak is slightly lower at 30°C (86°F). When it comes to precipitation, October is significantly wetter, receiving 343 mm (13.5 in) over 29 days, whereas December has 199 mm (7.8 in) over 18 days. Humidity levels remain high in both months, with October at 81% and December slightly lower at 80%. For a more detailed look at October's weather, check out Dehiwala-Mount Lavinia weather in October.
In comparing the weather between December and November, December tends to be slightly warmer with average temperatures around 27°C (81°F), while November features a similar average but has a slightly higher minimum of 24°C (75°F). Notably, December experiences less precipitation, with 199 mm (7.8 in) over 18 days, compared to November's 302 mm (11.9 in) across 26 days. Humidity levels remain consistent at 80% for both months, creating a similarly humid environment. For more detailed information, you can visit Dehiwala-Mount Lavinia weather in November.
As December rolls in, Dehiwala-Mount Lavinia transforms into a vibrant tapestry of weather patterns, setting itself apart from the preceding months. With temperatures averaging a comfortable 27°C, the days are warm but not excessively hot, creating an inviting atmosphere for both locals and visitors. However, the month also brings a noticeable increase in precipitation, with 18 days of rain contributing to a total of 199 mm. This elevated humidity level of around 80% can enhance the tropical ambiance, making December feel lush and lively. For those curious about the broader patterns, you can explore more on Dehiwala-Mount Lavinia Climate.