Last updated: March 19, 2025
December in Kalutara, Sri Lanka brings a tropical climate that is both warm and humid. With maximum temperatures reaching 30°C (87°F) and an average around 26°C (80°F), visitors can expect balmy days infused with coastal charm. The month experiences a notable minimum temperature of 22°C (72°F), perfect for those who enjoy cooler evenings. However, prepare for consistent rainfall, as 188 mm (7.4 in) of precipitation falls over approximately 19 days. This high level of humidity, at 80%, contributes to the lush scenery of the region, making December an enchanting time to immerse oneself in Kalutara's vibrant landscapes.
In December, Kalutara, Sri Lanka, experiences pleasantly warm temperatures, with minimums hovering around 22°C (72°F) and averages settling at about 26°C (80°F). As the month progresses, daytime highs reach a comfortable 30°C (87°F), marking a slight decrease from the peak warmth of earlier months. This trend showcases a gradual transition towards cooler conditions as the year wraps up, yet the weather remains inviting. With consistent humidity, December is ideal for enjoying the region's picturesque beaches and lush landscapes, making it a perfect time for both relaxation and exploration.
In December, Kalutara, Sri Lanka, experiences a significant shift in precipitation, collecting 188 mm (7.4 in) of rainfall over 19 days. This marks a decrease from the heavier rains of the previous months, particularly when compared to May's peak of 347 mm. While still a notable amount for the month, December's precipitation suggests a gradual transition towards drier conditions, setting the stage for the drier January ahead. The reduction in rainfall days indicates a more sporadic rainfall pattern, allowing for clearer intervals amidst the greenery that thrives in this tropical climate. As the year concludes, December provides a blend of wet weather and moments of respite, reflecting the dynamic nature of Kalutara's monsoon climate.
In Kalutara, Sri Lanka, December marks the end of the year with humidity levels averaging a comfortable 80%. As the months progress, a noticeable trend emerges: the humidity gradually increases from January's 77%, peaking in the mid-year with 82% to 83% during the sultry months of June through August. Following this peak, humidity begins to taper slightly, hovering around 80% in the last two months of the year. This gradual rise and slight fall not only characterize the tropical climate but also enhance the lush greenery and vibrant atmosphere of Kalutara, making December a particularly enchanting time to experience the region.
In December, Kalutara experiences a gradual decline in UV Index levels, dropping to 10, which falls into the very high exposure category, with a burn time of 15 minutes. This marks a slight decrease from the intense conditions of the earlier months, where UV Index values peaked at 15 in April. Throughout the year, the UV Index remains consistently high, generally categorized as extreme, emphasizing the need for sun protection during peak exposure times. As the month progresses towards the new year, it offers a brief respite from the extreme levels, but vigilance is still key. Stay informed and ready for the sun’s rays by checking the latest updates at Kalutara UV Index.
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In December, Kalutara, Sri Lanka, basks in an inviting 307 hours of sunshine, making it a prime time to soak up the warm rays as the year draws to a close. This month marks a slight dip from November's 281 hours, yet it remains consistent with the overall trend of abundant sunshine that characterizes the region throughout the year. With hours peaking in March at 332 hours, there's a noticeable pattern of sunny days, particularly from February to July, often exceeding 300 hours. Whether you’re planning beach outings or exploring the vibrant local culture, December’s sunny days provide the perfect backdrop for memorable experiences in this tropical paradise.
In December, Kalutara, Sri Lanka experiences a promising 48% chance of sunny weather, making it one of the brighter months of the year. This significant increase in sunshine potential, especially when compared to the preceding months, highlights a welcoming shift as the region transitions towards the tail end of the monsoon season. Notably, December stands out alongside February, which boasts an even higher sun probability at 47%, while earlier months like August and July dip dramatically to just 8% and 16% respectively. With temperatures warming and the likelihood of clear skies on the rise, December emerges as a prime time for visitors seeking to enjoy the natural beauty of this coastal paradise under the sun.
In Kalutara, Sri Lanka, the daylight duration showcases a fascinating rhythm throughout the year. January and February offer the least daylight, with a consistent 11 hours that creates a sense of tranquility and balance. As the season transitions into March, daylight begins to stretch to 12 hours, peaking in the following months of April through September, which bask in this generous sunlight. This period signifies a vibrant peak, where the lush landscapes thrive under the sun. In October and November, daylight dips back to 11 hours, heralding the arrival of the dry season, before settling at this same duration in December. This cyclical pattern not only highlights the region's equatorial charm but also reflects the harmonious shifts in nature throughout the year.
In December, the winds in Kalutara, Sri Lanka gently ease to an average speed of 2.0 m/s (4 mph), marking a noticeable decline from the more robust gusts of the preceding months. This month typically follows a peak in wind speeds, which reached a high of 4.8 m/s (11 mph) in July, showcasing a climactic mid-year gustiness. As the year winds down, the soothing breezes of December provide a tranquil atmosphere, transitioning from the breezy heights of late summer into a calmer, more serene winter. Overall, the trend reflects a notable oscillation in wind patterns throughout the year, with December serving as a quiet finale to the seasonal ebbs and flows.
The weather in Kalutara 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 Kalutara and find detailed weather information for every month.
In December, the weather is quite warm, with average temperatures hovering around 26°C (80°F) and highs reaching up to 30°C (87°F). However, this month also brings significant rainfall, with 188 mm (7.4 in) of precipitation spread over 19 days, leading to higher humidity levels of about 80%.
In contrast, January experiences slightly cooler temperatures, with a minimum of 20°C (69°F) and a maximum of 31°C (89°F), while maintaining the same average of 26°C (80°F). Precipitation drops significantly to 76 mm (3.0 in) over just 9 days, resulting in a lower humidity of 77%. For more detailed information about the weather in January, you can visit Kalutara weather in January.
December tends to be a wetter month compared to February, with precipitation reaching 188 mm over 19 days and an average temperature ranging from a comfortable 22°C (72°F) to a warm 30°C (87°F) and a humidity level of 80%. In contrast, February experiences less rainfall, totaling 65 mm over 11 days, and features slightly higher average temperatures with a range of 22°C (71°F) to a maximum of 32°C (90°F), along with lower humidity at 73%. Overall, while December is more humid and rainy, February offers warmer temperatures and clearer skies. For more detailed insights, visit Kalutara weather in February.
In December, the weather is typically warm and humid, with average temperatures ranging from 22°C (72°F) at night to a maximum of 30°C (87°F) during the day. The month also tends to be quite wet, receiving an average of 188 mm (7.4 inches) of rain over 19 days, contributing to a high humidity level of 80%.
In contrast, March offers slightly warmer conditions, with nighttime temperatures starting at 23°C (74°F) and daytime highs reaching up to 32°C (90°F). Precipitation decreases to 118 mm (4.7 inches), spread over 16 days, resulting in lower humidity levels of 74%. For more detailed information, you can check Kalutara weather in March.
Overall, while both months are warm, March generally experiences less rainfall and humidity, making it a drier and somewhat hotter time of year compared to December.
Comparing the weather in December and April reveals some notable differences. December tends to be slightly cooler, with average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F), while April sees warmer conditions, with temperatures averaging between 24°C (76°F) and 33°C (91°F). In terms of precipitation, December experiences higher rainfall at 188 mm (7.4 in) over 19 days, compared to April's 144 mm (5.7 in) spread over 24 days. Additionally, December has a higher humidity level at 80%, whereas April's humidity is lower at 74%. For a detailed look at the weather in April, you can check Kalutara weather in April.
In December, the weather features a warm climate with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F), averaging 26°C (80°F). The month experiences significant rainfall, with 188 mm (7.4 in) of precipitation over 19 days, and humidity levels around 80%.
In contrast, May brings even warmer temperatures, with minimums at 25°C (77°F) and maximums reaching 31°C (88°F), averaging 28°C (82°F). However, it also sees a notable increase in precipitation, totaling 347 mm (13.7 in) spread over 30 days, while humidity dips slightly to 76%. For more detailed information about the weather patterns in May, you can check Kalutara weather in May.
When comparing the weather in December and June, we see that both months maintain a tropical climate, but they differ in several key aspects. December has a slightly lower temperature range, with minimums around 22°C (72°F) and average highs of 30°C (87°F), while June's temperatures start at a higher minimum of 25°C (77°F) and have an average of 27°C (81°F), peaking at the same 30°C (86°F). However, June is significantly wetter, receiving 330 mm (13.0 in) of rainfall over 29 days compared to December's 188 mm (7.4 in) over 19 days, contributing to a nearly identical humidity level of around 80-82%. For more detailed insights about June weather, you can visit Kalutara weather in June.
In comparing the weather between December and July, we see that both months experience warm temperatures, with July slightly warmer overall. December has average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F), while July’s temperatures range from a minimum of 25°C (77°F) to a maximum of 30°C (86°F). However, July experiences more precipitation, accumulating 263 mm (10.4 in) over 29 days compared to December's 188 mm (7.4 in) over 19 days. Both months also have high humidity levels, with December at 80% and July slightly higher at 82%. For a more detailed look at conditions in July, you can visit Kalutara weather in July.
December and August both experience warm temperatures, but December tends to be slightly cooler with average temperatures ranging from 22°C (72°F) to a maximum of 30°C (87°F), while August has a minimum of 24°C (76°F) and a maximum of 29°C (85°F). However, August sees significantly more rainfall, with 296 mm (11.6 in) over 29 days compared to December's 188 mm (7.4 in) over 19 days. Additionally, the humidity is slightly higher in August at 83%, compared to 80% in December. For more specific details regarding the weather conditions in August, you can check Kalutara weather in August.
In comparing the weather between December and September, both months showcase warm temperatures, with December having a slightly cooler average temperature range. December's minimum temperature is 22°C (72°F) compared to September's 24°C (75°F), but both months peak at 30°C (86°F to 87°F). However, September experiences significantly more rainfall, totaling 277 mm (10.9 in) over 27 days, while December sees 188 mm (7.4 in) across 19 days. Additionally, the humidity levels are quite similar, with December at 80% and September at 82%. For more detailed insights on September weather, you can visit Kalutara weather in September.
When comparing the weather in December and October, we see some notable differences. December typically has slightly cooler temperatures, with a minimum of 22°C (72°F) and an average of 26°C (80°F), while October starts off warmer, with a minimum of 24°C (75°F) and an average of 27°C (80°F). However, October experiences significantly more rainfall, totaling 324 mm (12.7 in) over 30 days compared to December's 188 mm (7.4 in) spread across just 19 days. Humidity levels remain similar in both months, with December at 80% and October slightly higher at 81%. For more detailed insights into October's weather, you can refer to Kalutara weather in October.
As we compare the weather in December to that of November, we notice some notable differences. December experiences slightly lower minimum temperatures, averaging 22°C (72°F), while November starts at a minimum of 23°C (74°F). Both months maintain the same average temperature of 26°C (80°F) and reach a maximum of 30°C (86°F in November and 87°F in December). However, December is characterized by reduced precipitation, totaling 188 mm (7.4 in) over 19 days, compared to November’s higher 292 mm (11.5 in) over 26 days. Humidity levels remain steady at 80% for both months. For more detailed information, check out Kalutara weather in November.
In December, Kalutara's weather showcases a distinct shift, with higher humidity levels and a noticeable increase in rainfall compared to the preceding months. With average temperatures ranging from a comfortable 22°C at night to a warm 30°C during the day, this time of year delivers a tropical ambiance that’s ideal for both relaxation and exploration. However, with precipitation occurring on nearly two-thirds of the days, it's wise for travelers to keep an umbrella handy. This blend of warmth and frequent showers characterizes December as a transitioning month towards the wetter season, culminating in a unique experience for visitors. For a deeper dive into the nuances of the weather, explore Kalutara Climate.