Last updated: March 19, 2025
In Negombo, Sri Lanka, May presents a warm and humid climate, with maximum temperatures reaching around 31°C (88°F) and averaging 28°C (83°F). The minimum temperature rarely drops below 25°C (78°F), creating a consistently tropical atmosphere. However, this month is characterized by significant rainfall, accumulating to 281 mm (11.1 in) over 29 days, making it one of the wetter periods of the year. With humidity levels lingering at 76%, visitors should be prepared for a lush, vibrant landscape, but also for the frequent showers that define this beautiful coastal town in May.
In May, Negombo, Sri Lanka, experiences pleasantly warm weather, with temperatures ranging from a minimum of 25°C (78°F) to a maximum of 31°C (88°F). The average temperature hovers around a comfortable 28°C (83°F), mirroring the consistent warmth seen throughout the preceding months. As the peak of the dry season approaches, the region enjoys slightly milder maximum temperatures compared to the hotter months of February and March, where highs frequently reached 33°C (91°F). This trend sets a welcoming stage for visitors looking to explore the beautiful beaches and vibrant local culture, while also hinting at the gradual onset of the upcoming monsoon season. With subtle fluctuations in temperature, May offers a delightful balance for those seeking sunny adventures in this coastal gem.
In May, Negombo, Sri Lanka, experiences a significant surge in precipitation, with a staggering 281 mm (11.1 in) of rainfall, making it one of the wettest months of the year. This dramatic increase reflects the onset of the monsoon season, resulting in nearly all of the 29 days seeing some form of rainfall. Following April's 130 mm (5.1 in), May's deluge not only highlights a trend of increasingly heavy rains during this time but also sets the stage for the even heavier downpours that follow in June and October. As the monsoon rains sweep across the region, they play a vital role in replenishing local ecosystems, though the prolonged wet conditions can lead to challenges for daily life and agriculture in the area.
In May, Negombo experiences a humidity level of 76%, which signifies a slight decrease compared to the preceding months of April and March, both at 74%. However, this uptick in humidity is reflective of the island's transition into the wetter season. The climate trends show that as the year progresses into the mid-year months, humidity levels tend to rise significantly, peaking at 82% in June and remaining consistent through July and August. This pattern indicates that while May maintains a moderately humid atmosphere, it sets the stage for the more intensely humid conditions that characterize the summer months in this coastal paradise.
In May, Negombo, Sri Lanka, continues to experience an extreme UV Index of 14, maintaining its trend of high UV exposure throughout the early months of the year. This level demands keen awareness, as the burn time remains a swift 10 minutes, similar to both April and March. As we transition from the peak of April's UV Index of 15, May serves as a reminder that the sun's intensity does not wane significantly. This consistent exposure underscores the importance of sun safety measures for both residents and visitors alike. For detailed UV Index information, visit Negombo UV Index.
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In Negombo, Sri Lanka, May shines with an impressive 312 hours of sunshine, perfectly in line with the vibrant weather pattern that characterizes this coastal gem. As the year progresses, sunshine hours experience a gentle fluctuation, peaking in March at 336 hours and gradually balancing out in late spring. Even in May, the sun graces the beaches, making it an ideal time for visitors to bask in the warmth. Following May, the sunshine remains abundant through June and July, showcasing an enviable consistency that highlights the region’s appeal. Overall, the sunshine trend hints at a delightful tropical climate, ensuring that Negombo remains a sun-soaked paradise throughout the year.
In Negombo, Sri Lanka, May marks a significant dip in the likelihood of sunny weather, with only a 17% chance of clear skies. This contrasts sharply with the sunnier months of February and December, where the chances soar to 54% and 55%, respectively. Following a relatively bright April at 47%, May's clouds begin to gather, hinting at the onset of the monsoon season. As spring transitions into a wetter climate, the chances of sun continue to decline through the subsequent months, creating a palpable shift in the weather pattern. Travelers and locals alike should prepare for less-than-ideal conditions, embracing the quieter charm of Negombo’s rainy May.
In Negombo, Sri Lanka, the daylight duration exhibits notable trends throughout the year. The first four months see a gradual transition as daylight extends from 11 hours in January and February to 12 hours by March and April. This consistent 12-hour daylight continues through the warmer months of May to September, creating a perfectly balanced rhythm that enhances both productivity and leisure under the tropical sun. As the year winds down, daylight begins to recede again, tapering back to 11 hours in October and returning to 11 hours by November and December. This pattern not only reflects the region's stable climate but also offers a brilliant backdrop for daily life and vibrant cultural activities.
In May, Negombo experiences a gentle breeze, with an average wind speed of 4.5 m/s (10 mph), making it a delightful time for outdoor activities. As the month unfolds, this breeze is noticeably stronger than in the preceding months of March and April, where winds were relatively calm. It hints at a seasonal uptick, as the winds become more pronounced leading into the summers of June and July, where speeds peak at 5.4 m/s (12 mph) and 5.9 m/s (13 mph), respectively. This trend suggests that May serves as a transition month, balancing between the calms of early spring and the invigorating gales of summer, all the while enchanting visitors with its warm, breezy charm.
The weather in Negombo changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May'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.
In comparing the weather between May and January, May emerges as significantly wetter and more humid, characterized by an average temperature of 28°C (83°F) and extensive rainfall of 281 mm (11.1 in) over 29 days. In contrast, January offers a drier experience with much less precipitation, totaling 44 mm (1.7 in) across just 5 days, alongside slightly cooler temperatures, averaging 27°C (80°F). Both months exhibit high humidity, with January at 77% and May at 76%. For a detailed look at January's weather specifics, you can refer to Negombo weather in January.
May and February exhibit distinct weather patterns, showcasing the transition from warmer to wetter conditions. In May, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with an average of 28°C (83°F). This month also sees substantial rainfall, totaling 281 mm (11.1 in) over 29 days, leading to a higher humidity level of 76%. In contrast, February maintains a slightly cooler temperature range, with a minimum of 23°C (73°F) and a maximum of 33°C (91°F), averaging 27°C (82°F). February is characterized by significantly lower precipitation, with only 25 mm (1.0 in) falling across 5 days, and a humidity level of 73%. For a more detailed perspective on February weather, you can visit Negombo weather in February.
When comparing the weather in May and March, both months exhibit similar average temperatures, with March having a slightly higher maximum at 33°C (92°F) compared to May's peak of 31°C (88°F). However, May is characterized by significantly higher precipitation, totaling 281 mm (11.1 in) over 29 days, in contrast to March's 94 mm (3.7 in) over just 17 days. The humidity levels are also comparable, with May at 76% and March slightly lower at 74%. For a more detailed look at March weather, you can check Negombo weather in March.
In comparing the weather of May and April, both months feature similar minimum and average temperatures, maintaining a warm range around 25°C (78°F) and 28°C (83°F). However, April tends to be slightly warmer at its maximum, reaching up to 32°C (91°F), compared to May's peak of 31°C (88°F). A notable difference is in precipitation and number of rainy days; May experiences significantly higher rainfall, accumulating 281 mm (11.1 in) over 29 days, while April sees only 130 mm (5.1 in) across 25 days. Humidity levels are comparable, with May at 76% and April at 74%. For more details, you can visit Negombo weather in April.
May and June share similar temperature averages, with both months experiencing daytime highs around 31°C (88°F) and minimum temperatures close to 25-26°C (78°F). However, June tends to be slightly drier, with a total precipitation of 241 mm (9.5 in) compared to May's 281 mm (11.1 in), despite both months featuring rainfall on 29 days. Additionally, June's humidity is a bit higher at 82%, compared to May's 76%, making the air feel more muggy. For a detailed look at the weather specifics in June, you can visit Negombo weather in June.
In May, the weather showcases a slightly warmer range, with temperatures averaging around 28°C (83°F) and peaking at 31°C (88°F). This month experiences substantial rainfall, totaling 281 mm (11.1 in) over 29 days, contributing to a humidity level of 76%.
In contrast, July brings marginally cooler temperatures, with a maximum of 30°C (86°F) and an average of 28°C (82°F), while maintaining a minimum of 25°C (77°F). The precipitation drops significantly to 160 mm (6.3 in) over 25 days, resulting in a slightly higher humidity of 82%. For more detailed insights, check out Negombo weather in July.
May and August experience similar warm temperatures, with May slightly warmer, averaging 28°C (83°F) compared to August's 27°C (81°F). Both months have a minimum temperature of around 25°C (77°F), but May sees higher maximums at 31°C (88°F). Precipitation levels are notably different, with May receiving 281 mm (11.1 in) over 29 days, while August has less rainfall at 181 mm (7.1 in) across 27 days. Additionally, August is characterized by higher humidity at 83%, compared to May's 76%. For a more detailed overview of weather conditions in August, visit Negombo weather in August.
In comparing the weather of May and September, both months exhibit warm temperatures, with May having slightly higher averages. May’s temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), averaging around 28°C (83°F), while September has similar 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, May experiences significantly more rainfall, totaling 281 mm (11.1 in) over 29 days compared to September’s 227 mm (8.9 in) over 26 days. The humidity levels are also notable, being slightly higher in September at 82% compared to May’s 76%. For a more detailed view of September's climate, you can check Negombo weather in September.
May and October showcase similar warm temperatures, with both months experiencing minimums around 25°C (78°F) and average highs of about 28-31°C (83-88°F). However, October tends to be slightly cooler on average at 27°C (81°F) and features increased humidity at 81%, compared to May's 76%. Both months are characterized by high rainfall, but October sees a bit more precipitation, accumulating 330 mm (13.0 in) over the same number of rainy days as May, which records 281 mm (11.1 in). For a detailed look at October’s weather patterns, check out Negombo weather in October.
In comparing the weather between May and November, both months exhibit warm temperatures, with November experiencing slightly cooler averages. May's temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), while November maintains a similar range, with a minimum of 24°C (76°F) and a maximum still reaching 31°C (88°F). However, November tends to have a bit more precipitation, totaling 307 mm (12.1 in) over 24 days, compared to May's 281 mm (11.1 in) over 29 days. Additionally, November has slightly higher humidity levels at 80% compared to May's 76%. For more detailed insights, you can check Negombo weather in November.
In May, the weather is generally warmer with average temperatures peaking at 28°C (83°F) and maximums reaching 31°C (88°F), accompanied by significant rainfall of 281 mm (11.1 in) over 29 days, resulting in a humidity level of 76%. In contrast, December offers slightly cooler temperatures, with a min of 23°C (74°F) and an average of 27°C (81°F), while still hitting a maximum of 31°C (89°F). The precipitation is notably lower at 146 mm (5.8 in) across 15 days, and humidity rises slightly to 80%. For more detailed information on December weather, you can visit Negombo weather in December.
As May unfolds in Negombo, expect temperatures to reach a maximum of 31°C, accompanied by a warm average of 28°C and a comfortable minimum of 25°C. This month stands out due to its notable rainfall, accumulating around 281 mm across nearly every day. The humidity also climbs, creating a lush, tropical atmosphere not typically felt in the drier months. If you're planning a visit, be prepared for consistent showers and a vibrant, green landscape, making Negombo a unique experience during May. For more insights into what to expect throughout the year, check out Negombo Climate.