Last updated: March 19, 2025
In December, Negombo, Sri Lanka, experiences a tropical maritime climate characterized by warm temperatures and considerable humidity. The maximum temperature reaches around 31°C (89°F), while the average hovers near 27°C (81°F), providing a pleasant atmosphere for visitors. However, nighttime can be cooler, with minimum temperatures dipping to 23°C (74°F). This month sees an average precipitation of 146 mm (5.8 in), spread over approximately 15 days, contributing to the lush landscapes that surround the coastal city. With a humidity level of 80%, the combination of warmth and moisture can create a refreshing tropical feel, making December a unique time to explore the vibrant culture and natural beauty of Negombo.
In Negombo, Sri Lanka, December offers a delightful blend of warmth and comfort, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (89°F). This month marks a transition into the warm season, as the average temperature remains steady at 27°C (81°F), similar to previous months. It's a time when the ocean invites visitors with mild breezes, making it an ideal period for beach activities and exploration. As the year winds down, December's pleasant climate draws travelers seeking sun-soaked days and vibrant local festivities, showcasing the best of this coastal paradise.
In December, Negombo experiences a significant drop in precipitation, with 146 mm (5.8 in) of rain falling over approximately 15 days. This marks a shift from the heavy rains of previous months, with November seeing a generous 307 mm (12.1 in) over 24 days and October peaking at 330 mm (13.0 in). The decreasing trend in rainfall as the year ends is a welcome respite for the coastal town, as it transitions from the extensive monsoon period. Although December still retains a damp climate, the lighter showers signal the approach of drier conditions, offering a brief interlude before the onset of new seasonal patterns in early January.
December in Negombo, Sri Lanka, typically showcases a sustaining humidity level of 80%, aligning closely with the preceding months, particularly November's 80%. This marks a continuation of a trend where humidity remains relatively high throughout the latter part of the year. Notably, the summer months of June through August see the peak humidity levels, reaching up to 83%. As the year winds down, humidity levels begin to stabilize, gradually tapering from a peak of 82% in July and August. Overall, December's humidity reflects the region’s tropical climate, characterized by lush greenery and a warm atmosphere, making it a consistently humid month as the year concludes.
In Negombo, Sri Lanka, the UV Index shows a significant trend of extreme levels throughout the year, particularly from January to April where it peaks at 15 in April. As the year progresses, the index remains consistently high, with values reaching 14 in both February and March, and remaining at 13 for several months. However, December brings a slight relief, reducing to a UV Index of 10, categorized as very high, which still warrants caution with a burn time of 15 minutes. This trend highlights the importance of staying protected year-round. For more detailed insights into UV levels and their implications, visit Negombo UV Index.
UV Risk Categories
In Negombo, Sri Lanka, December offers an enticing blend of sun-soaked days, with 312 hours of glorious sunshine marking the end of the year. This month seamlessly transitions from the slightly warmer months of October and November, both averaging around 279 to 299 hours. The sunshine levels in December are consistent, laying the groundwork for a gentle lead-in to the new year, reminiscent of the bright and bountiful days of June and July, which boast the highest hours around 320 to 333. Overall, this subtle dip is part of a charming seasonal curve, revealing a sun-drenched atmosphere that beckons visitors to bask in the beauty of Sri Lanka’s coastline.
In December, Negombo, Sri Lanka, boasts a 55% chance of sunny weather, making it one of the brightest months of the year. This notable increase follows a string of lower probabilities from the previous months, where the chances of sunshine dipped to 14% in November and even lower earlier in the year. As the year wraps up, the skies tend to clear, providing a wonderful opportunity for visitors to enjoy the stunning beaches and vibrant local culture. With December feeling more like a summer month, it's an ideal time for travelers seeking warmth and sunlight in this picturesque coastal town.
In Negombo, Sri Lanka, the daylight duration exhibits a fascinating pattern across the year. January and February kick off with 11 hours of daylight, creating a steady start to the new year. As March rolls in, the days extend to 12 hours, marking the onset of longer, sun-filled afternoons that persist until September. This stretch of abundant daylight shifts slightly in October and November, dropping back to 11 hours. In December, the trend stabilizes again at 11 hours, providing a consistent rhythm to the seasonal transitions. Overall, while the daylight duration varies, it mainly clusters around 11 to 12 hours, encapsulating the warm, tropical charm of Negombo's climate throughout the year.
As December unfolds in Negombo, Sri Lanka, the coastal winds pick up to an average speed of 4.5 m/s (10 mph), marking a slight increase from the preceding months. This gentle, yet invigorating breeze signals the transition from the dynamic weather patterns of the previous summer. Following a peak in July and August with winds reaching 5.9 m/s (13 mph), the December winds create a refreshing atmosphere that is perfect for leisurely beach strolls and watersports. The average wind speed this month showcases a consistent trend of moderate breeziness, making it an ideal time to embrace the tranquil charm of Negombo's shoreline. Overall, December's winds blend warmth and coolness, inviting both locals and visitors alike to enjoy the serene, sun-kissed coastal experience.
The weather in Negombo 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 Negombo and find detailed weather information for every month.
December and January in Negombo exhibit fairly similar temperatures, with December having a slightly higher maximum temperature of 31°C (89°F) compared to January's 32°C (90°F). Both months feature warm averages around 27°C (81°F) but with different minimums, where December's minimum is 23°C (74°F) and January's is a tad cooler at 22°C (72°F).
Precipitation contrasts significantly between the two months, with December experiencing much higher rainfall at 146 mm (5.8 in) across 15 days, while January sees only 44 mm (1.7 in) over just 5 days, contributing to a drier overall feel in January. Humidity is also slightly lower in January at 77% compared to December's 80%. For more details on January weather in Negombo, you can check this link: Negombo weather in January.
In comparing the weather between December and February, both months exhibit warm temperatures, with December showing a minimum of 23°C (74°F) and an average of 27°C (81°F), which is consistent with February's similar minimum and average temperatures. However, February tends to be slightly warmer at its maximum, reaching up to 33°C (91°F) as opposed to December's maximum of 31°C (89°F). Precipitation varies significantly, with December receiving 146 mm (5.8 in) over approximately 15 days, leading to a much more humid environment with a humidity level of 80%. In contrast, February is much drier, with only 25 mm (1.0 in) of rain over just 5 days and lower humidity at 73%. For more detailed information about February weather in Negombo, check out Negombo weather in February.
In December, the weather tends to be slightly cooler, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (89°F) and an average of 27°C (81°F). However, it is also a wetter month, experiencing significantly higher precipitation of 146 mm (5.8 in) over approximately 15 days, contributing to a humidity level of 80%.
In contrast, March experiences slightly warmer temperatures, with a minimum of 24°C (76°F), an average of 28°C (83°F), and a maximum of 33°C (92°F). While March still sees a fair amount of rainfall, it is considerably less, with 94 mm (3.7 in) of precipitation spread over 17 days, leading to a lower humidity of 74%. For more detailed weather insights, you can check out Negombo weather in March.
In December, the weather tends to be slightly cooler with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (89°F). The month experiences more rainfall, with 146 mm (5.8 in) of precipitation spread across 15 days, contributing to a high humidity level of 80%. In contrast, April sees warmer temperatures, with a minimum of 25°C (78°F) and a maximum of 32°C (91°F). Although precipitation is slightly lower at 130 mm (5.1 in), it occurs over more days, totaling 25. Additionally, the humidity decreases to 74%, creating a more comfortable atmosphere. For further details, you can check Negombo weather in April.
December and May offer distinct weather patterns, with both months displaying warm temperatures. 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). However, it also sees significant rainfall, amounting to 146 mm (5.8 in) over about 15 days, paired with high humidity levels of 80%.
In contrast, May experiences slightly warmer conditions, with minimum temperatures at 25°C (78°F) and similar maximum temperatures of 31°C (88°F), leading to an average of 28°C (83°F). The month is notably wetter, accumulating 281 mm (11.1 in) of precipitation over 29 days, while the humidity remains at a comfortable 76%. For a closer look at the weather specifics in May, you can check out this link: Negombo weather in May.
When comparing the weather in December and June, both months showcase warm temperatures, but there are notable differences in precipitation and humidity. December has a slightly lower minimum temperature of 23°C (74°F) and an average of 27°C (81°F), while June sees a higher minimum of 26°C (78°F) with a similar average of 28°C (83°F). However, June experiences significantly more rainfall, with 241 mm (9.5 in) over 29 days compared to December's 146 mm (5.8 in) across 15 days. Humidity levels are also comparable, slightly increasing from 80% in December to 82% in June, contributing to the perception of a more humid atmosphere during the latter month. For a detailed overview of conditions in June, you can check Negombo weather in June.
In December, temperatures in Negombo 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 significant rainfall, totaling 146 mm (5.8 in) over approximately 15 rainy days, alongside a humidity level of 80%. In contrast, July presents slightly warmer conditions, with minimum temperatures at 25°C (77°F) and maximums reaching 30°C (86°F), and an average temperature of 28°C (82°F). July sees a higher precipitation amount of 160 mm (6.3 in), spread across about 25 days, and a marginally higher humidity of 82%. For more detailed information, you can check Negombo weather in July.
When comparing the weather in December and August, we see some notable differences. December experiences slightly milder temperatures, with a minimum of 23°C (74°F) and a maximum of 31°C (89°F), while August has a minimum of 25°C (77°F) and a maximum of 29°C (85°F). Both months have similar average temperatures of 27°C (81°F), but December tends to be less humid at 80% compared to August's 83%. Precipitation is more pronounced in August, with 181 mm (7.1 in) over 27 days, as opposed to December's 146 mm (5.8 in) over 15 days. For more detailed insights, you can check Negombo weather in August.
When comparing the weather in December and September, we see some distinct differences. December experiences slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), while September has a minimum of 25°C (77°F) and a similar average of 27°C (81°F). Both months have high humidity, with December at 80% and September slightly higher at 82%. Precipitation is notably greater in September, receiving 227 mm (8.9 in) over 26 days, compared to December's 146 mm (5.8 in) across 15 days. For more detailed insights, you can refer to Negombo weather in September.
In comparing the weather of December and October, we see some distinct differences. December features a slightly lower temperature range, with a minimum of 23°C (74°F) and a maximum of 31°C (89°F), while October has a minimum of 25°C (77°F) and a maximum of 30°C (87°F). Despite the similar average temperature of 27°C (81°F) in both months, October experiences significantly more precipitation, with 330 mm (13.0 in) over 29 days compared to December’s 146 mm (5.8 in) over just 15 days. Additionally, humidity levels remain comparable, hovering around 80% in December and 81% in October. For more detailed information about October conditions, visit Negombo weather in October.
When comparing the weather in December to November, we see some notable differences. December tends to be slightly warmer, with minimum temperatures averaging 23°C (74°F) compared to November's minimum of 24°C (76°F). Both months have an average temperature of 27°C (81°F) and reach maximums of 31°C (89°F) and 31°C (88°F) respectively. However, December experiences significantly less rainfall, accumulating 146 mm (5.8 in) over 15 days, while November sees much heavier precipitation at 307 mm (12.1 in) across 24 days. Both months maintain a consistent humidity level of 80%. For more detailed information, you can check Negombo weather in November.
As December unfolds in Negombo, the tropical allure of the island is unmistakable, with high temperatures typically reaching around 31°C (89°F). While the average feels pleasant at about 27°C (81°F), the humidity can make it feel more intense, hovering around 80%. This month also ushers in a significant shift in precipitation, with about 146 mm of rain spread over approximately 15 days. Compared to other months, December tends to be wetter, lending a lush vibrancy to the landscape. Those visiting this coastal gem can expect a blend of sunny days and showery afternoons, making it an ideal time to experience the unique charms of Negombo. For a deeper dive into what to expect, check out Negombo Climate.