Last updated: March 19, 2025
In Devinuwara, Sri Lanka, September brings a tropical climate characterized by high humidity levels averaging around 82%. The temperature typically ranges from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), with an overall average of 26°C (80°F). This month witnesses significant precipitation, with 209 mm (8.2 in) of rainfall spread over 26 days, making it one of the wetter months of the year. Travelers should prepare for frequent showers while enjoying the lush, rejuvenating landscape that thrives in this vibrant monsoon season.
In September, Devinuwara, Sri Lanka, experiences a delightful blend of warmth and gentle breezes, with temperatures ranging from a mild 23°C (74°F) at night to a comfortable 31°C (88°F) during the day. This marks a subtle transition as the average temperature hovers around 26°C (80°F), reflecting the region's consistent tropical climate. As the month progresses, you'll notice that the days start cooling slightly from the peak of summer, yet remain inviting enough for beachgoers and adventurers alike. The overall trend displays a slight dip in maximum temperatures compared to the hotter months of August and earlier, making September a wonderful time to explore the scenic beauty and vibrant culture of this coastal gem.
In September, Devinuwara experiences a significant uptick in precipitation, receiving an impressive 209 mm (8.2 in) of rain over 26 days. This increase is part of a broader trend as the region transitions into the heart of the monsoon season, with rainfall steadily climbing from the drier months early in the year. The month not only showcases a robust increase compared to August's 170 mm (6.7 in) but also sets the stage for even heavier downpours in October and November. This gradual buildup of moisture continues to be essential for the lush landscapes and vibrant ecosystems, highlighting the cyclical nature of Devinuwara’s climate as it navigates through its wettest season.
In September, Devinuwara experiences a notable humidity level of 82%, maintaining continuity with the slightly higher figures seen in August. This period marks a peak in humidity that begins in the warmer summer months, particularly as the region transitions into October, which sees a similar humid atmosphere at 83%. The humidity in September closely aligns with the overall trend of elevated moisture levels characteristic of the coastal climate, highlighting the gradual increase from the drier values observed at the start of the year. As the year progresses, the fluctuating but generally consistent humidity reflects the tropical essence of Sri Lanka, making September a month where the air feels lush and vibrant.
In September, the UV Index in Devinuwara, Sri Lanka, remains high at 14, classifying it within the extreme exposure category. Sun-seekers should be particularly mindful of their time outdoors, as the potential for sunburn is rapid, with a burn time of only 10 minutes. This trend of elevated UV levels is consistent throughout the year, with January to April peaking at 15 and gradually tapering slightly in June before climbing again during the late summer months. Despite the minor fluctuations, the UV Index remains persistently alarming, underscoring the necessity for sun protection strategies. For a detailed overview of the UV Index throughout the year, visit Devinuwara UV Index.
UV Risk Categories
September in Devinuwara, Sri Lanka, offers a delightful blend of warm sunshine and vibrant coastal charm, with approximately 317 hours of sunlight gracing the skies. This month marks a slight dip from the peak sunshine of 339 hours seen in July, yet it remains robust compared to the waning days of November, which sees only 294 hours. The trend throughout the year showcases a fairly consistent abundance of sunlight, with an impressive peak in the early months, particularly March and April, when daylight stretches lastingly. With its idyllic weather and expansive blue skies, September continues to be a prime time for visitors seeking the sun-kissed beauty that defines this serene coastal town.
In September, Devinuwara, Sri Lanka, enjoys a 21% chance of sunny weather, marking a slight uptick from the low of 8% in August. This pattern of fluctuating sunshine throughout the year reveals distinct seasonal variations, with the sun's presence peaking in April and December at 44%. Following the rainier months of May through July, where the likelihood of sun dips significantly, September offers a hopeful transition as the weather begins to stabilize. While it's not the sunniest month, the gradual increase in sunlight hints at the promise of clearer days ahead, making it a worthwhile time for visitors seeking a balance of sun and sea.
In September, Devinuwara enjoys a consistent 12 hours of daylight, maintaining the trend established in the preceding months of June, July, and August. This pattern reflects a stable and harmonious transition within the tropics, where daylight remains generous during the region's warmest season. As the year progresses into October, however, the daylight hours begin to taper off, dropping to 11 hours. This rhythmic shift illustrates the region's remarkable balance between light and darkness, creating a conducive environment for both vibrant daily activities and tranquil evenings as the year approaches its end.
In September, Devinuwara, Sri Lanka, enjoys a refreshing transition in its weather patterns, with an average wind speed of 5.0 m/s (11 mph). This marks a slight decrease from the peak winds of July and August, which recorded 5.8 m/s and 5.2 m/s respectively, yet it still embodies a lively breeze that invigorates the coastal landscape. The month stands as a pivotal point, leading into the more tranquil winds of October while maintaining a significant briskness compared to the earlier months of the year. This steady, moderate wind not only enhances the natural beauty of the region but also invites outdoor enthusiasts and nature lovers to soak in the picturesque surroundings, making September a delightful time to experience Devinuwara's coastal charm.
The weather in Devinuwara changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Devinuwara and find detailed weather information for every month.
In September, the weather tends to be warm and humid, with average temperatures around 26°C (80°F) and a maximum of 31°C (88°F). This month receives significant rainfall, totaling 209 mm (8.2 in), across 26 days, resulting in an humidity level of 82%. In contrast, January features slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 34°C (93°F), though the average remains the same at 26°C (80°F). Precipitation in January is much lower at 85 mm (3.3 in) over just 12 days, and humidity is slightly reduced to 80%. For more detailed insights, you can visit Devinuwara weather in January.
September and February present contrasting weather patterns. September typically experiences warmer days with average temperatures around 26°C (80°F), peaking at a maximum of 31°C (88°F), in addition to high humidity levels of 82%. However, this month is also marked by significant rainfall, with 209 mm (8.2 in) spread over 26 days. In contrast, February enjoys slightly cooler minimum temperatures of 21°C (71°F) and can reach highs of 35°C (95°F). The month is drier, with only 77 mm (3.0 in) of precipitation over 13 days, and has a lower humidity level of 77%. For more details, check out the Devinuwara weather in February.
In comparing the weather of September and March, we see some notable differences. September maintains a warm climate with temperatures averaging 26°C (80°F) and reaching highs of 31°C (88°F). However, it also experiences significant rainfall, with 209 mm (8.2 in) of precipitation over 26 days, leading to high humidity levels at 82%. In contrast, March feels slightly hotter, boasting an average temperature of 27°C (81°F) and peak temperatures of 34°C (94°F). The precipitation during this month is less, totaling 121 mm (4.8 in) over 21 days, accompanied by a lower humidity of 77%. For more details, you can check out Devinuwara weather in March.
In comparing the weather of September and April, both months share a minimum temperature of 23°C (74°F). However, April tends to be slightly warmer overall, with averages of 27°C (82°F) and a maximum of 33°C (92°F), compared to September's average of 26°C (80°F) and maximum of 31°C (88°F). Interestingly, September experiences more precipitation, totaling 209 mm (8.2 in) over 26 days, while April has 172 mm (6.8 in) over 25 days. Furthermore, the humidity is marginally higher in September at 82%, compared to April's 77%. For more detailed insights, you can check out Devinuwara weather in April.
When comparing the weather in September and May, both months exhibit warm temperatures, but May is slightly warmer overall. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), with an average of 26°C (80°F). Conversely, May sees a minimum of 24°C (75°F) and a maximum of 32°C (90°F), with an average of 27°C (82°F).
Precipitation is more prevalent in May, totaling 252 mm (9.9 in) over 29 days, whereas September experiences 209 mm (8.2 in) spread over 26 days. Additionally, the humidity in September is higher, at 82%, compared to 76% in May. For a detailed look at weather conditions, you can check Devinuwara weather in May.
In comparing the weather of September and June, both months exhibit warm temperatures with September having a slightly lower average temperature than June. September's minimum temperature is 23°C (74°F), while June starts at 24°C (75°F). The maximum temperatures are similar, peaking at 31°C (88°F) in September and 32°C (89°F) in June. However, September experiences more rainfall, with 209 mm (8.2 in) over 26 days compared to June's 189 mm (7.4 in) across 28 days. The humidity levels are nearly identical, with September at 82% and June at 83%. For a more detailed look at the weather in June, you can visit Devinuwara weather in June.
In comparing the weather of September to July, we find that both months feature similar temperature ranges, with minimum temperatures around 23°C (74°F) and maximums peaking at 31°C (88°F). However, September tends to be slightly cooler on average at 26°C (80°F), compared to July's average of 27°C (81°F). Rainfall is noticeably higher in September, with 209 mm (8.2 in) recorded over 26 days, while July sees less precipitation at 156 mm (6.1 in) across 27 days. Furthermore, both months experience high humidity, with September slightly higher at 82% compared to July's 81%. For a closer look at July's weather patterns, you can visit Devinuwara weather in July.
In comparing the weather patterns of September and August, we observe that September experiences slightly cooler minimum temperatures at 23°C (74°F) compared to August's 24°C (75°F). However, the average temperatures remain similar, with September averaging 26°C (80°F) against August’s 27°C (80°F). Interestingly, September sees slightly higher maximum temperatures, reaching up to 31°C (88°F), while August peaks at 30°C (87°F). Precipitation is notably greater in September, totaling 209 mm (8.2 in) over 26 days, compared to August's 170 mm (6.7 in) over 27 days, indicating that September tends to be wetter on average. Both months share the same humidity level of 82%, creating a consistently humid climate. For more details on August's weather, you can visit Devinuwara weather in August.
September and October exhibit similar temperature patterns, with both months featuring a minimum of 23°C (74°F), an average of 26°C (80°F), and a maximum of 31°C (88°F). However, October sees an increase in precipitation, totaling 258 mm (10.2 in) over 27 days, compared to September's 209 mm (8.2 in) over 26 days. Additionally, October's humidity slightly rises to 83%, while September sits at 82%. This suggests that while temperatures remain consistent, October tends to be wetter and more humid. For more detailed insights about the weather during this month, visit Devinuwara weather in October.
In September, the weather features similar temperature ranges to November, with minimums around 23°C (74°F), average temperatures at 26°C (80°F), and maximums reaching up to 31°C (88°F). However, September experiences slightly less precipitation, totaling 209 mm (8.2 in) over 26 days, alongside a higher humidity level of 82%. In contrast, November sees a slight increase in maximum temperature to 31°C (89°F) and a higher precipitation total of 261 mm (10.3 in), maintaining the same number of rain days. Humidity in November is slightly lower at 81%. For a detailed look at the weather patterns in November, you can visit Devinuwara weather in November.
In September, the weather features a minimum temperature of 23°C (74°F) and an average of 26°C (80°F), reaching a maximum of 31°C (88°F). This month sees significant precipitation, with 209 mm (8.2 in) over 26 days, all while maintaining a high humidity level of 82%. In contrast, December experiences slightly warmer maximum temperatures, peaking at 32°C (89°F), with a similar minimum of 22°C (73°F) and an average of 26°C (80°F). Precipitation in December is somewhat less, totaling 188 mm (7.4 in) over 21 days, yet humidity remains consistently high at 82%. For more detailed information, you can check this link: Devinuwara weather in December.
September in Devinuwara brings a shift in weather, characterized by high humidity and frequent rainfall. This month typically experiences warmer temperatures compared to the rest of the year, with the heat intensified by the humidity level hovering around 82%. While the rains may be heavy, contributing to over 26 days of precipitation, they also offer a refreshing respite from the heat. As a transition month, September stands out for its blend of warmth and moisture, painting a vivid picture of tropical life. For a deeper dive into what to expect throughout the year, explore the comprehensive details at Devinuwara Climate.