Last updated: March 19, 2025
April in Kalutara, Sri Lanka, is characterized by a tropical climate that brings both warmth and moisture. With maximum temperatures reaching 33°C (91°F) and an average of 28°C (82°F), the days can be quite hot, while the nights offer a mild reprieve with a minimum of 24°C (76°F). Rainfall is a prominent feature during this month, with a total precipitation of 144 mm (5.7 in) spread across 24 days, contributing to a humidity level of 74%. This combination of heat and humidity creates an atmosphere that is vibrant yet challenging, making April a month of lush landscapes and fleeting showers in Kalutara.
April in Kalutara, Sri Lanka, marks a delightful transition into the warmer months, with temperatures reaching a maximum of 33°C (91°F). The month begins with a minimum temperature of 24°C (76°F), gradually settling into an average of 28°C (82°F). This trend of rising warmth is consistent with the previous months, where March featured similar maximums but slightly cooler averages. As April progresses, the charming tropical climate invites both locals and tourists to enjoy the vibrant atmosphere, with evenings still pleasantly warm. This increasing heat hints at the approaching peak of summer, while maintaining the tropical allure that Kalutara is renowned for.
April in Kalutara, Sri Lanka, marks a notable peak in precipitation, recording 144 mm (5.7 in) over 24 days of rain. This month serves as a transition into the region's wettest season, where the frequency and volume of rain begin to escalate significantly. Compared to the preceding months, April's rainfall is a 22% increase from March's 118 mm, highlighting a shift towards more persistent and heavier downpours. As the landscape shifts from the moderate wetness of the early year to the increasingly lush greenery of May, this transition emphasizes the critical role of April's rainfall in nurturing Kalutara's vibrant ecosystem. The frequent rain spells experienced throughout the month set the stage for the intense deluge that typically characterizes the following months, underscoring April's position as a significant precursor in the annual climatic rhythm.
In April, Kalutara, Sri Lanka, experiences a humidity level of 74%, maintaining a comfortable atmosphere that bridges the drier months of January through March and the more humid conditions that follow in May. This moderate humidity reflects a trend of stability in the region’s climate, with levels remaining fairly consistent in the preceding months. As the year progresses, humidity in Kalutara tends to rise, peaking during the monsoon months of June through August. Notably, April serves as a transitional month, hinting at the forthcoming increase in moisture while still offering relatively pleasant conditions for those who enjoy the tropical ambiance without the overwhelming stickiness of the peak season.
In April, Kalutara experiences its highest UV Index of the year at 15, falling into the extreme exposure category along with a consistently short burn time of just 10 minutes. This trend of elevated UV levels throughout the first half of the year, starting from January’s Index of 12 and peaking in April, emphasizes the importance of sun protection for both residents and visitors. The relentless rays maintain an extreme rating as they transition into May's slightly lower but still significant Index of 14. With these figures, it’s clear that vigilance against sun exposure is essential during this period. For more details and to plan your sun safety, check out the Kalutara UV Index.
UV Risk Categories
In April, Kalutara, Sri Lanka, basks in a delightful 329 hours of sunshine, continuing the trend of plentiful daylight that characterizes the early months of the year. Following a notable 332 hours in March, the sunshine slightly dips but remains impressive, highlighting the region's consistent warmth and inviting charm. As spring transforms into early summer, the sunshine hours remain robust with only a gradual decrease in the subsequent months. This ensures that even as the year progresses, Kalutara offers a wealth of bright days perfect for beach outings and exploration. With sunshine peaking in the first half of the year, April serves as a beautiful transition, making it an ideal time for both relaxation and adventure under the radiant Sri Lankan sun.
In April, Kalutara, Sri Lanka, enjoys a promising chance of sunny weather with a 44% likelihood of sunshine. This month marks a noticeable rebound from March's lower 32%, indicating a gradual transition towards more favorable conditions as the region approaches the peak of its dry season. Interestingly, April's sunshine probability is a marked improvement compared to the much gloomier months of June, July, and August, which see chances drop to 21% and below. As Sri Lanka gears up for warmer, sunnier days ahead, April represents a sweet spot for those hoping to bask in the sun before the rainy season sets back in during May, which plunges to just 16% sunshine chances. Thus, April's weather offers a delightful opportunity for both locals and travelers to relish the sun-drenched beauty of Kalutara.
In April, Kalutara, Sri Lanka, enjoys a delightful 12 hours of daylight, continuing the trend established in March. This period of extended light complements the tropical climate, promoting vibrant outdoor activities. As the year progresses, daylight remains consistent throughout the following months, maintaining that same 12-hour duration from April to August. It’s noteworthy that daylight starts to wane again in October, returning to 11 hours, allowing residents and visitors to savor the warmth of Sri Lanka’s sun before transitioning to longer nights in the final months of the year. This rhythm of daylight not only enhances the beauty of the landscape but also underscores the region's tropical equatorial charm year-round.
In April, Kalutara experiences a refreshing average wind speed of 2.4 m/s (5 mph), offering a gentle breeze that complements the warm tropical climate. This mild wind is part of a noticeable trend; after a dip in March, wind speeds begin to pick up as the region transitions into the more blustery months of May and June. With each passing month leading into the peak of the windy season, Kalutara's atmosphere transforms, ushering in invigorating conditions that contrast beautifully with the lower speeds seen in the earlier months of the year. The subtle increase from April to May showcases the gradual shift towards the robust winds characteristic of the Sri Lankan coast, providing both locals and visitors with a delightful backdrop of movement and energy in this stunning coastal paradise.
The weather in Kalutara changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April'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.
April and January offer contrasting weather patterns. In April, temperatures reach a minimum of 24°C (76°F) and peak at 33°C (91°F), with an average of 28°C (82°F), making it noticeably warmer. Additionally, April experiences significant rainfall with 144 mm (5.7 in) over 24 days, resulting in higher humidity levels at 74%. In contrast, January is slightly cooler, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 31°C (89°F) and an average of 26°C (80°F). The month sees less precipitation, with just 76 mm (3.0 in) falling over 9 days and a higher humidity of 77%. For a detailed look at January weather, you can visit Kalutara weather in January.
In comparing the weather of April and February, we observe noticeable differences in both temperature and precipitation patterns. April features higher average temperatures, with a minimum of 24°C (76°F) and a maximum reaching 33°C (91°F), while February sees slightly lower temperatures, ranging from a minimum of 22°C (71°F) to a maximum of 32°C (90°F). Additionally, April experiences significantly more rainfall, totaling 144 mm (5.7 in) over 24 days compared to February's 65 mm (2.5 in) over just 11 days. The humidity remains relatively similar in both months, with April at 74% and February at 73%. For more detailed insights on February weather, you can visit Kalutara weather in February.
April experiences slightly warmer temperatures compared to March, with an average of 28°C (82°F) and a maximum reaching 33°C (91°F), while March has an average of 27°C (82°F) and a maximum of 32°C (90°F). Additionally, April sees increased precipitation, totaling 144 mm (5.7 in) over 24 days compared to March's 118 mm (4.7 in) over 16 days. Despite these changes, both months maintain a consistent humidity level of 74%. For more detailed information, you can check Kalutara weather in March.
In comparing the weather between April and May, we see a slight increase in minimum temperatures, with May starting at 25°C (77°F) compared to April's 24°C (76°F). Both months share the same average temperature of 28°C (82°F), but May experiences a lower maximum temperature of 31°C (88°F) versus April's 33°C (91°F). Notably, May has significantly higher precipitation, totaling 347 mm (13.7 in) over 30 days, compared to April's 144 mm (5.7 in) over 24 days. Humidity levels remain relatively close, rising slightly from 74% in April to 76% in May. For more details, you can check Kalutara weather in May.
April and June exhibit distinct weather patterns, with April generally warmer but drier than June. In April, temperatures range from a minimum of 24°C (76°F) to a maximum of 33°C (91°F), with an average temperature of 28°C (82°F) and a total precipitation of 144 mm (5.7 in) over 24 days. In contrast, June sees slightly cooler temperatures, with a minimum of 25°C (77°F), an average of 27°C (81°F), and a maximum of 30°C (86°F). However, it is significantly wetter, receiving 330 mm (13.0 in) of rain over 29 days, contributing to an increase in humidity to 82%. For more detailed weather insights, check out Kalutara weather in June.
In comparing the weather between April and July, both months feature warm temperatures, but July tends to be slightly cooler overall. April's average temperature hovers around 28°C (82°F), with highs reaching up to 33°C (91°F), while July sees lower averages of 27°C (81°F) and maximums of 30°C (86°F). However, July experiences significantly more rainfall, with 263 mm (10.4 in) spread over 29 days compared to April's 144 mm (5.7 in) across 24 days. Furthermore, July has a higher humidity level at 82%, compared to April's 74%, making it feel more humid. For more detailed information, you can check Kalutara weather in July.
April and August present distinctly different weather patterns. In April, temperatures range from a minimum of 24°C (76°F) to a maximum of 33°C (91°F), with an average of 28°C (82°F). The month sees moderate rainfall, with 144 mm (5.7 in) over 24 days, and humidity levels at 74%. In contrast, August experiences cooler temperatures, with a maximum of 29°C (85°F) and an average of 27°C (80°F). However, it is significantly wetter, recording 296 mm (11.6 in) of precipitation spread over 29 days, coupled with higher humidity at 83%. For more details on the August weather, check out Kalutara weather in August.
In comparing the weather between April and September, both months share a similar minimum temperature of around 24°C (76°F). However, April typically enjoys slightly warmer average and maximum temperatures, averaging 28°C (82°F) and reaching heights of 33°C (91°F), while September's average drops to about 27°C (80°F) and peaks at 30°C (86°F). Precipitation levels reveal a stark contrast; April experiences 144 mm (5.7 in) over 24 days, whereas September sees a significant increase to 277 mm (10.9 in) across 27 days, accompanied by higher humidity levels at 82%. For more detailed insights on the climate in September, check out Kalutara weather in September.
In comparing the weather between April and October, we see some notable differences. April tends to be slightly warmer, with daytime temperatures ranging from a minimum of 24°C (76°F) to a maximum of 33°C (91°F) and boasting an average temperature of 28°C (82°F). In contrast, October experiences milder temperatures, with a range of 24°C (75°F) to 30°C (85°F) and an average of 27°C (80°F).
However, October is characterized by significantly higher precipitation, receiving 324 mm (12.7 in) over 30 days, compared to April's 144 mm (5.7 in) across 24 days. Additionally, October sees increased humidity levels, rising to 81%, which is higher than April's 74%. For more detailed insights, you can check Kalutara weather in October.
In April, temperatures in Kalutara range from a minimum of 24°C (76°F) to a maximum of 33°C (91°F), with an average of 28°C (82°F). The month experiences significant rainfall, totaling 144 mm (5.7 in) spread over 24 days, accompanied by a humidity level of 74%. In contrast, November presents slightly cooler temperatures, with a minimum of 23°C (74°F) and a maximum of 30°C (86°F), averaging at 26°C (80°F). However, it sees a much higher rainfall of 292 mm (11.5 in) over 26 days, and the humidity increases to 80%. This stark difference in precipitation and humidity makes November notably wetter and more humid compared to the warmth of April. For more details on November's weather, you can refer to Kalutara weather in November.
When comparing the weather in April and December, there are notable differences in temperature and precipitation. April typically enjoys warmer temperatures, with a minimum of 24°C (76°F) and an average of 28°C (82°F), reaching a maximum of 33°C (91°F). In contrast, December sees slightly cooler temperatures, with a minimum of 22°C (72°F), an average of 26°C (80°F), and a peak of 30°C (87°F). Despite the milder temperatures in December, it experiences higher precipitation, totaling 188 mm (7.4 in) over 19 days compared to April's 144 mm (5.7 in) across 24 days. Additionally, December tends to be more humid, with a humidity level of 80% compared to April's 74%. For more detailed insights on December's weather, you can check Kalutara weather in December.
April in Kalutara is characterized by a noticeable shift towards warmer and more humid conditions compared to other months. With maximum temperatures reaching a balmy 33°C, the average warmth sits comfortably around 28°C, making it one of the warmer months of the year. However, frequent rainfall—spreading over nearly three-quarters of the month—means that visitors should be prepared for wet days, as precipitation accumulates to 144 mm. This blend of heat and humidity sets April apart, creating a vibrant atmosphere that is both lively and lush. For more insights on the weather patterns, check out Kalutara Climate.