September Weather in Dambulla, Sri Lanka

Last updated: March 19, 2025

September in Dambulla, Sri Lanka offers a warm tropical climate, with maximum temperatures reaching up to 35°C (94°F) and an average of 27°C (80°F). The month experiences a notable minimum temperature of 21°C (71°F), providing mild evenings. However, visitors should prepare for significant precipitation, totaling around 125 mm (4.9 in) over approximately 19 days, contributing to a humidity level of 81%. This combination creates a lush, vibrant landscape, making Dambulla a unique destination for those who enjoy the beauty of a hydrated environment amidst warm weather.

September Temperature in Dambulla

In September, Dambulla, Sri Lanka experiences a harmonious blend of warmth and comfort, with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 35°C (94°F). The daily average hovers around 27°C (80°F), mirroring the pleasant and stable climate characteristic of the preceding months. As the transition into the latter part of the year unfolds, September maintains consistent warmth, with only slight fluctuations compared to August. Notably, the minimum temperature gently decreases from the previous months, hinting at the subtle shift towards cooler days ahead. This month is ideal for visitors seeking to explore the stunning landscapes and rich cultural heritage, all while enjoying an inviting tropical climate.

September Weather in Dambulla: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Dambulla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec747578818181818080787775
Data source: Temperature data for Dambulla generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Dambulla

September in Dambulla, Sri Lanka, marks a significant transition in precipitation patterns, as the region receives 125 mm (4.9 in) of rain over approximately 19 days. This increase not only signals a break from the relatively drier months of July and August but also paves the way for the intense rainfall that follows in October and November. With a noticeable uptick in both rainfall and rainy days, September serves as a precursor to the upcoming monsoon season, setting the stage for the lush greenery that characterizes Sri Lanka's landscapes. As the month progresses, the cumulative effects of these showers are felt, revitalizing the local flora and fauna while preparing the region for the heavier deluges that lie ahead.

September Precipitation Trends in Dambulla

The chart displays monthly precipitation patterns in Dambulla, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1016891115144476963125312320208
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dambulla

In September, humidity levels in Dambulla, Sri Lanka, hover around a comfortable 81%, making it a transitional month between the wetter and drier seasons. This figure is emblematic of the general trend seen throughout the year: starting from a high of 80% in January, humidity gradually decreases to its lowest point of 69% during the drier months of March and April. However, as the year progresses, there is a notable increase, culminating in October's peak of 89%. September stands out as a month of relative balance, where the humidity begins to creep back up after the slightly drier summer months, setting the stage for the more humid conditions that follow in the latter part of the year. Overall, September offers a blend of warmth and moisture, perfect for experiencing the vibrant landscapes of Dambulla.

September Average Humidity in Dambulla

This chart illustrates the average monthly humidity levels in Dambulla, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%72%69%69%79%85%81%85%81%89%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dambulla

As September rolls into Dambulla, Sri Lanka, residents and visitors alike should brace for continued extreme UV Index levels, soaring at 14, comparable to the previous month, August. The persistent high UV Index—ranging consistently from 12 to 15 throughout the year—highlights the region's need for sun protection, with a brief burn time of just 10 minutes under the blazing sun. This trend not only underscores the intensity of sunlight in the area but also serves as a reminder to plan outdoor activities accordingly. For more detailed insights on UV exposure, visit Dambulla UV Index. Stay safe and protect your skin!

Maximum UV Index Levels in Dambulla for September

The chart shows the monthly maximum UV Index (UVI) for Dambulla in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec121315151413131414131211
Data source: Dambulla September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Dambulla

September in Dambulla, Sri Lanka, shines brightly with 312 hours of sunshine, marking a delightful transition into the fall season. This month typically experiences a slight dip in sunshine compared to the summer peak, yet it remains radiant and inviting, ensuring plenty of opportunities for outdoor adventures. As the year progresses, sunlight hours gradually decrease from July’s high of 339 hours, with September offering a perfect blend of warmth and comfortable weather. This trend highlights Dambulla's unique climate, where the sun remains a constant companion, even as the landscape begins to hint at the lush greens of the approaching monsoon. Whether you're exploring ancient rock temples or savoring local cuisine, September's gentle sunshine provides an enchanting backdrop for your Sri Lankan journey.

Monthly Sunshine Duration in Dambulla: September Highlighted

The September sunshine duration represents the total number of hours Dambulla experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec258h305h335h331h323h335h339h337h312h299h267h297h
Data source: Dambulla September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dambulla During September

In Dambulla, Sri Lanka, the likelihood of sunny weather in September presents a modest 19% chance. This figure aligns closely with the muted sun opportunities found in May and July, while notably lower than the brighter days seen in February and March. As the region transitions from the peak rainy season, September's weather often reflects the swan song of lingering clouds, making it less favorable for sunshine enthusiasts. However, as October approaches, the chance of sunny days dips slightly, indicating a shift towards the end of the drier months. Overall, September's weather offers a delicate balance of sunshine and clouds, ideal for those who appreciate a more temperate climate.

Percentage of Sunny Days in September in Dambulla

The chart illustrates the percentage of sunny days in Dambulla throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Dambulla experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%35%38%47%19%25%18%8%19%16%16%39%
Data source: Dambulla September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dambulla in September

In Dambulla, Sri Lanka, September marks the continuation of a consistent trend in daylight duration, with the sun shining for an average of 12 hours each day. This steady daylight mirrors the preceding months from March through August, where longer daylight hours prevail. As the year progresses towards October, daylight begins to taper off, falling back to 11 hours. This pattern not only highlights the lush beauty of the region during September but also signals the slow transition towards the cooler months ahead, offering the perfect balance of light for exploring the vibrant landscapes and rich culture of Dambulla.

Average Daylight Hours in Dambulla for September

The chart illustrates the variation in daylight duration in Dambulla throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 42m11h 51m12h 4m12h 17m12h 28m12h 33m12h 30m12h 21m12h 8m11h 55m11h 45m11h 39m
Data source: Dambulla daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Dambulla

In September, Dambulla experiences a notable shift in wind patterns, with an average wind speed of 4.7 m/s (10 mph). This month continues the trend established in the preceding months of June and July, where the winds picked up significantly, reaching up to 5.2 m/s (12 mph) in July. As the year transitions into the latter months, there's a gradual decline in wind speed, yet September retains a refreshing breeze that hints at the changing seasons. This moderate wind serves as a reminder of the region's serene beauty, making it a perfect time for exploration and outdoor activities, while the air is still filled with the lingering warmth of the preceding summer months.

Average September Wind Speed in Dambulla

The chart displays monthly wind speed patterns in Dambulla, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.42.21.93.54.95.24.94.7 m/s3.22.62.3
Data source: Dambulla September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Dambulla Compares to Other Months

The weather in Dambulla 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 Dambulla and find detailed weather information for every month.

September and January present quite different weather patterns. In September, temperatures soar, with a minimum of 21°C (71°F) and average highs reaching 35°C (94°F). The month is also marked by considerable precipitation, averaging 125 mm (4.9 in) over 19 days, accompanied by high humidity levels of 81%. In contrast, January offers a cooler climate, with temperatures ranging from a minimum of 15°C (59°F) to an average maximum of 31°C (87°F). Rainfall is slightly less, totaling 101 mm (4.0 in) over just 12 days, and humidity is marginally lower at 80%. For specific details on January weather patterns, you can refer to Dambulla weather in January.

In September, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 35°C (94°F) and an average of 27°C (80°F). The month also sees considerable rainfall, with 125 mm (4.9 in) spread over 19 days, contributing to a higher humidity level of 81%. In contrast, February offers a milder climate, with cooler temperatures ranging from 15°C (59°F) to 32°C (90°F) and an average of 24°C (75°F). Precipitation is notably lower in February, measuring 68 mm (2.7 in) over 13 days and resulting in a humidity level of 72%. For more detailed weather insights for Dambulla in February, you can check this link: Dambulla weather in February.

In comparing the weather of September and March, we see some notable differences. September typically experiences slightly higher temperatures, with an average of 27°C (80°F) and maximums reaching up to 35°C (94°F), while March has an average temperature of 26°C (78°F) with similar maximums. However, September is characterized by greater humidity at 81% compared to March's 69%, contributing to a somewhat heavier-feeling atmosphere. Additionally, September sees more rainfall, totaling 125 mm (4.9 in) across 19 days, whereas March has only 91 mm (3.6 in) over 13 days, leading to a drier experience overall. For more specific details on March weather, you can visit Dambulla weather in March.

In comparing the weather of September and April, both months feature similar average temperatures around 27°C (81°F), but September tends to have a slightly warmer minimum temperature of 21°C (71°F) compared to April's 18°C (64°F). The maximum temperatures are comparable, reaching up to 35°C (94°F) in September and slightly higher at 35°C (96°F) in April. When it comes to precipitation, September sees more rainfall with 125 mm (4.9 in) across 19 days, while April has 115 mm (4.5 in) over 16 days. Additionally, humidity is higher in September at 81%, compared to April's more comfortable level of 69%. For more detailed information, you can check Dambulla weather in April.

In comparing the weather between September and May, we find that both months feature similar average temperatures, with September experiencing a slight range of 21°C to 35°C (71°F to 94°F) and May ranging from 22°C to 36°C (71°F to 97°F). Humidity levels are quite comparable, with September at 81% and May slightly lower at 79%. However, May tends to receive more precipitation, totaling 144 mm (5.7 in) over 19 days, compared to September's 125 mm (4.9 in) over the same number of days. For further details on May's weather, you can check Dambulla weather in May.

When comparing the weather in September and June, both months feature warm temperatures, with average highs reaching around 27°C (81°F) and maximums peaking at similar levels of 34-35°C (94°F). However, September experiences slightly warmer minimum temperatures, averaging 21°C (71°F) compared to June's 22°C (72°F). Humidity levels are relatively high in both months, with September at 81% and June a touch higher at 85%. One notable difference is the precipitation; September sees a significantly greater amount at 125 mm (4.9 in) over 19 days, while June has only 47 mm (1.9 in) spread over 16 days. To learn more about the weather specific to June in Dambulla, visit Dambulla weather in June.

In comparing the weather of September and July, September tends to be slightly cooler, with average temperatures around 27°C (80°F) compared to July's average of 27°C (81°F), though the minimum temperatures are quite close at 21°C (71°F) for September and 22°C (73°F) for July. Both months experience similar maximum temperatures, peaking at 35°C (94°F) in September and 35°C (96°F) in July. However, September significantly sees more precipitation, with 125 mm (4.9 in) over 19 days, whereas July has only 69 mm (2.7 in) spread across 17 days. Notably, humidity levels remain constant at 81% in both months, contributing to a generally muggy atmosphere. For more detailed information, you can refer to Dambulla weather in July.

In comparing the weather patterns of September and August, both months exhibit similar average temperatures, with September showing a slight variation in the minimum and maximum. September's minimum temperature is slightly lower at 21°C (71°F), while the maximum reaches 35°C (94°F), slightly warmer than August's maximum of 34°C (93°F). Notably, September experiences significantly higher precipitation at 125 mm (4.9 in) over 19 days compared to August's 63 mm (2.5 in) over 16 days, suggesting a wetter climate as the seasons transition. Additionally, humidity levels are slightly lower in September at 81%, compared to August's higher humidity of 85%. For more detailed insights into weather conditions, you can check Dambulla weather in August.

In September, the weather features warm temperatures with a minimum of 21°C (71°F), an average of 27°C (80°F), and peak highs reaching 35°C (94°F). This month sees significant rainfall, totaling about 125 mm (4.9 in) across 19 days and maintaining a humidity level of 81%. In contrast, October experiences slightly lower average temperatures, with a minimum of 21°C (70°F) and a maximum of 33°C (91°F). However, it is considerably wetter, with precipitation soaring to 312 mm (12.3 in) over 24 days, and humidity increasing to 89%. For a more detailed outlook on October's weather patterns, you can check Dambulla weather in October.

In comparing the weather between September and November, we see notable differences in temperature and precipitation. September tends to be warmer, with minimum temperatures around 21°C (71°F) and average highs peaking at 35°C (94°F), while November cools down slightly with a minimum of 20°C (68°F) and an average high of 33°C (92°F). However, November experiences significantly more rain, with a total precipitation of 320 mm (12.6 in) across 25 days, compared to September's 125 mm (4.9 in) over 19 days. Additionally, humidity levels rise in November, reaching 88% compared to September's 81%. For more detailed insights, you can refer to Dambulla weather in November.

September and December present contrasting yet mild weather conditions. In September, temperatures range from a minimum of 21°C (71°F) to a maximum of 35°C (94°F), with an average of 27°C (80°F). While the month experiences significant precipitation at 125 mm (4.9 in) over 19 rainy days, humidity levels remain high at 81%. In contrast, December sees slightly cooler temperatures with a minimum of 18°C (64°F) and a maximum of 31°C (88°F), averaging 24°C (76°F). However, it tends to be wetter, with rainfall totaling 208 mm (8.2 in) across 21 days and humidity rising to 86%. For more detailed information, you can check Dambulla weather in December.

Compare Dambulla's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Dambulla

September in Dambulla presents a distinctive weather profile that sets it apart from other months. With maximum temperatures reaching a warm 35°C and an average of 27°C, it's evident that the warmth lingers, even as the region braces for the increased rainfall typical of this time—a total of 125 mm across 19 days. The high humidity at 81% can make the atmosphere feel quite sultry, creating a unique blend of tropical conditions. This transition into the wet season brings lush greenery and vibrant landscapes, inviting travelers to experience the natural beauty of Dambulla. For a detailed overview of climatic trends throughout the year, explore Dambulla Climate.