Last updated: March 19, 2025
October in Dehiwala-Mount Lavinia, Sri Lanka, welcomes the onset of the monsoon season, characterized by high humidity levels averaging 81%. Expect daytime temperatures to peak at a balmy 30°C (86°F), while the average hovers around a comfortable 27°C (81°F), with nighttime lows dipping to 24°C (76°F). This month witnesses substantial rainfall, with a whopping 343 mm (13.5 in) spread over 29 days, creating a lush and vibrant landscape. Visitors should be prepared for frequent showers, making it an ideal time for enjoying the city's rich natural beauty and vibrant cultural experiences.
In October, Dehiwala-Mount Lavinia enjoys a pleasant tropical climate characterized by mild temperatures, where the minimum dips to around 24°C (76°F) and the maximum reaches up to 30°C (86°F). This month marks a subtle transition in the weather patterns, as the average temperature remains steady at 27°C (81°F), mirroring the consistent warmth experienced throughout the year. As the transition from the wet season approaches, there’s a slight drop in maximum temperatures compared to the peak summer months, inviting both locals and visitors to enjoy outdoor activities in the refreshing ocean breeze and vibrant greenery that the region offers. Overall, October presents an ideal blend of warmth and comfort, perfect for exploration and relaxation.
October is a significant month for precipitation in Dehiwala-Mount Lavinia, Sri Lanka, marking the peak of the rainy season with a striking 343 mm (13.5 in) of rainfall over 29 days. This substantial downpour is part of a broader trend observed from May through October, where monthly rainfalls regularly exceed 200 mm, showcasing the region's transition from the drier months at the beginning of the year. The increase in precipitation is particularly notable when compared to the preceding months, with October seeing a sharp rise from September’s 238 mm (9.4 in), underscoring the arrival of heavier rains. As this month unfolds, residents and visitors can expect frequent showers that invigorate the lush landscapes, contributing to the region's vibrant ecological diversity.
In October, Dehiwala-Mount Lavinia experiences a humidity level of 81%, which reflects a slight decrease from the higher peaks of previous months, particularly August and September, where humidity reached 83% and 82% respectively. The overall trend throughout the year shows a gradual rise in humidity from the drier month of February at 73% to the more humid season in the middle of the year. Interestingly, October marks a subtle shift as the monsoon season starts to recede, while still maintaining a relatively high humidity that characterizes the coastal climate of this vibrant region. As November approaches, humidity remains consistently high at 80%, signaling the year's transition towards a more stable, humid climate as the year draws to a close.
In October, Dehiwala-Mount Lavinia experiences a UV Index of 13, maintaining its classification as extreme with a consistent burn time of just 10 minutes. This month follows a pattern established throughout the year, where the UV Index hovers predominantly in the extreme category from January through September, peaking in April with an impressive value of 15. This trend indicates the urgency for protective measures against sun exposure, as the sun's intensity remains formidable. As the year progresses into November and December, there is a slight alleviation in UV levels, yet vigilance is still essential. For more detailed information on UV levels, visit Dehiwala-Mount Lavinia UV Index.
UV Risk Categories
In October, Dehiwala-Mount Lavinia enjoys about 305 hours of sunshine, continuing a trend of abundant sunlight seen throughout the year. This month marks a slight dip compared to the peak sunshine hours of 336 in March and 334 in April, yet it remains favorable for travel and outdoor activities. Following a vibrant summer, October's sunshine still outshines many months, including November's 283 hours. As the year transitions into the cooler months, visitors can relish the lingering warmth and golden rays, making it an ideal time to explore this beautiful coastal town of Sri Lanka.
In October, the likelihood of sunny weather in Dehiwala-Mount Lavinia is relatively low, with only a 16% chance of sun. This trend aligns with the months preceding it, particularly August and September, which experience even less sunshine, suggesting that the monsoon season still lingers in the air. As the year progresses, there is a noticeable increase in sunny days from November, which offers just a slight glimmer of hope for sun seekers in the immediate months ahead. Consequently, October is best embraced with a flexible mindset, ready for those rare sunny breaks amidst the prevailing clouds.
In Dehiwala-Mount Lavinia, Sri Lanka, the daylight duration exhibits a captivating rhythm throughout the year. From January to February, the sun graces the region with 11 hours of daylight, creating a gentle start to the year. As spring approaches in March, daylight extends to 12 hours, a trend that continues impressively through to September. This extended daylight fosters vibrant outdoor activities and a lively atmosphere. However, with the arrival of October, the duration subtly retreats back to 11 hours, mirroring the shorter days of the early year. As the year concludes in November and December, the daylight remains consistent at 11 hours, providing a harmonious close to the annual cycle of light in this enchanting locale.
As October settles in Dehiwala-Mount Lavinia, the winds bring a gentle shift, with an average speed of 4.2 m/s (9 mph). This month marks a slight decrease from the summer highs experienced in July and August, when gusts reached 5.8 m/s (13 mph) and 5.3 m/s (12 mph), respectively. Interestingly, the winds in October remain notably stronger than the calmer months earlier in the year—such as March, which languished at just 2.0 m/s (5 mph). As the year transitions toward its close, October's breezy ambiance serves as a reminder of the invigorating coastal whispers that define this vibrant Sri Lankan locale.
The weather in Dehiwala-Mount Lavinia changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Dehiwala-Mount Lavinia and find detailed weather information for every month.
When comparing the weather in October and January, October tends to be slightly warmer, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F) and an average of 27°C (81°F). In contrast, January experiences a minimum temperature of 22°C (73°F) and a maximum of 32°C (91°F), with the same average temperature of 27°C (81°F). However, October is significantly wetter, recording 343 mm (13.5 in) of precipitation over 29 days, while January sees much less rainfall, with only 59 mm (2.3 in) over just 7 days. Additionally, October boasts high humidity at 81%, compared to January’s 77%. For more detailed information, you can check Dehiwala-Mount Lavinia weather in January.
In comparing the weather between October and February, October presents a more humid and rainy atmosphere, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F) and a significant precipitation total of 343 mm (13.5 in) over 29 days. In contrast, February experiences slightly warmer conditions with an average temperature between 23°C (73°F) and 33°C (91°F), but it is much drier, yielding only 58 mm (2.3 in) of rainfall across 10 days, alongside lower humidity levels at 73%. This disparity in weather makes February a more favorable month for outdoor activities. For more detailed insights, you can visit Dehiwala-Mount Lavinia weather in February.
When comparing the weather between October and March, several key differences emerge. In October, temperatures are slightly cooler, with a minimum of 24°C (76°F) and a maximum of 30°C (86°F), whereas March sees warmer temperatures, peaking at 33°C (91°F). October is characterized by high humidity at 81% and substantial rainfall, averaging 343 mm (13.5 in) over 29 days, while March experiences less precipitation at 118 mm (4.6 in) over 19 days and lower humidity at 74%. For more detailed information on March weather, you can visit Dehiwala-Mount Lavinia weather in March.
October and April both experience warm temperatures, but October is slightly cooler on average, with a range from 24°C (76°F) to 30°C (86°F), compared to April's range of 25°C (77°F) to 32°C (91°F). In terms of precipitation, October sees significantly more rain, totaling 343 mm (13.5 in) over 29 days, while April has a much lower total of 133 mm (5.3 in) across 25 days. Additionally, the humidity levels in October are higher at 81%, compared to April's 74%. For more insights into the specifics of April weather in the region, you can check out Dehiwala-Mount Lavinia weather in April.
When comparing the weather in October and May, both months exhibit warm temperatures, but October tends to be slightly cooler. In October, temperatures range from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), with an average of 27°C (81°F). In contrast, May experiences slightly warmer conditions, with a minimum of 25°C (78°F), an average of 28°C (83°F), and a maximum of 32°C (90°F). Precipitation is notable in both months, with October receiving 343 mm (13.5 in) and May slightly less at 302 mm (11.9 in), with both experiencing rain on about 29 days. Additionally, October has higher humidity levels at 81%, compared to May's 76%. For more detailed insights on May weather, visit Dehiwala-Mount Lavinia weather in May.
In comparing the weather of October and June, both months experience relatively high temperatures, with October recording a minimum of 24°C and an average of 27°C, while June has a slightly warmer minimum of 25°C and an average of 28°C. Interestingly, both months peak at around 30°C, but October tends to have higher precipitation levels, totaling 343 mm over 29 days compared to June’s 269 mm over 28 days. Humidity remains quite similar, with October at 81% and June at 82%. For a closer look at June's specific weather characteristics, visit Dehiwala-Mount Lavinia weather in June.
October and July exhibit similar temperature ranges, with July showing a slightly higher minimum and average temperature, but both months peak at around 30°C (86°F). While precipitation levels in July are relatively low at 188 mm (7.4 in) over 26 days, October experiences a more significant amount of rainfall at 343 mm (13.5 in) across 29 days, resulting in a much wetter atmosphere. Humidity levels are comparable, with July at 82% and October at 81%. For a closer look at July's weather patterns, you can refer to Dehiwala-Mount Lavinia weather in July.
In comparing the weather of October and August, both months exhibit similar average temperatures, with October showing slightly lower minimum temperatures at 24°C (76°F) compared to August's 25°C (77°F). However, August has a maximum temperature of 29°C (85°F), which is just below October’s maximum of 30°C (86°F). Precipitation is significantly higher in October, with 343 mm (13.5 in) falling over 29 days, versus August’s 205 mm (8.1 in) over 27 days. The humidity levels remain relatively close, with September at 81% compared to August’s 83%. For more specific details about the conditions in August, you can refer to Dehiwala-Mount Lavinia weather in August.
In comparing the weather of October to that of September, we can observe a slight increase in precipitation and humidity levels. October experiences a minimum temperature of 24°C (76°F) and an average of 27°C (81°F), similar to September, which also has an average temperature of 27°C (81°F) but a slightly higher minimum of 25°C (77°F). However, October sees a notable rise in rainfall, with 343 mm (13.5 in) over 29 days, compared to September's 238 mm (9.4 in) over 26 days. The humidity in October is marginally lower at 81% against September's 82%. For a more detailed look at September’s weather, you can visit Dehiwala-Mount Lavinia weather in September.
October and November share similar temperature ranges, with both months featuring minimum temperatures around 24°C (76°F), average temperatures of 27°C (81°F), and maximum temperatures peaking at 30°C (86-87°F). However, November sees slightly less rainfall, accumulating 302 mm (11.9 in) compared to October's 343 mm (13.5 in), along with fewer rainy days—26 in November versus 29 in October. Humidity remains fairly consistent, with November registering at 80% compared to October's 81%. For more detailed information, you can explore Dehiwala-Mount Lavinia weather in November.
When comparing the weather between October and December, we observe some notable differences. In October, temperatures range from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), with an average of 27°C (81°F). The month is characterized by higher precipitation, totaling 343 mm (13.5 in) over 29 days, and humidity levels are relatively high at 81%. In contrast, December features slightly warmer days with temperatures peaking at 31°C (89°F) while maintaining an average of 27°C (81°F) and a minimum of 23°C (74°F). Additionally, precipitation drops significantly to 199 mm (7.8 in) spread over 18 days, with humidity remaining relatively stable at 80%. For more information about the weather specifics in December, you can check this link: Dehiwala-Mount Lavinia weather in December.
As October arrives in Dehiwala-Mount Lavinia, the weather transforms into a blend of warmth and humidity, significantly differing from the drier months earlier in the year. With temperatures averaging around 27°C (81°F) and a high of 30°C (86°F), the climate remains pleasantly warm, but it’s the heavy rainfall that sets October apart, bringing 343 mm (13.5 in) across 29 days. This elevated precipitation, combined with humidity levels soaring to 81%, creates a lush, vibrant atmosphere in the region, enhancing its tropical charm. For more insights into how the climate shapes this picturesque locale, visit Dehiwala-Mount Lavinia Climate.