September Weather in Nuwara Eliya, Sri Lanka

Last updated: March 19, 2025

September in Nuwara Eliya, Sri Lanka offers a refreshing climate characterized by a maximum temperature of 26°C (79°F) and an average of 20°C (69°F), making it a delightful escape from the heat. As the lush landscape rejuvenates, the region experiences significant precipitation of 265 mm (10.4 in), spread over 27 days of the month. This high rainfall contributes to the humidity level of 81%, creating a misty, enchanting environment that enhances the natural beauty of this hill country. Visitors can expect both the charm of a cool, serene atmosphere and the vibrancy of the local flora flourishing in the wet conditions.

September Temperature in Nuwara Eliya

In September, Nuwara Eliya experiences a refreshing slight decline in temperatures, with minimums averaging around 15°C (60°F) and maximums peaking at 26°C (79°F). This transition marks a subtle shift towards the cooler end of the spectrum, as the average temperature hovers around 20°C (69°F). The climate remains quite temperate, with the day's warmth balancing against the cooler evenings, making it a perfect time for outdoor activities amidst the region's stunning scenery. As the month progresses, the temperatures hint at the approaching change of seasons, offering a serene escape without the sweltering heat that can characterize other parts of the year.

September Weather in Nuwara Eliya: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nuwara Eliya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec676869717170706969686867
Data source: Temperature data for Nuwara Eliya 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 Nuwara Eliya

September in Nuwara Eliya, Sri Lanka, marks a significant transition in precipitation patterns, showcasing a dramatic increase in rainfall. With 265 mm (10.4 in) of rain accumulating over 27 days, September is one of the wettest months of the year, setting the stage for the even heavier downpours that follow in October and November. This month acts as a bridge between the relatively drier months of August and the peak wet season, making it a critical time for local ecosystems. The consistent rainfall not only nourishes the lush greenery that Nuwara Eliya is famous for but also highlights a trend of increasing precipitation as the year progresses, culminating in an impressive October total of 393 mm (15.5 in). This shifting climate presents both challenges and opportunities for the region, intertwining the rhythm of nature with the lives of its inhabitants.

September Precipitation Trends in Nuwara Eliya

The chart displays monthly precipitation patterns in Nuwara Eliya, 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.
JanFebMarAprMayJunJulAugSepOctNovDec109105127197295142185199265393394180
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nuwara Eliya

In September, Nuwara Eliya experiences a relative humidity of 81%, continuing the trend of elevated moisture often seen during the preceding months of June and August, both of which recorded 85% humidity. This slight dip from the summer peak still maintains a significant level of humidity, typical for this floral hillside region. As the year progresses, the humidity levels peak again in October at 89%, suggesting a transition into even more humid conditions. Overall, the yearly pattern reveals that Nuwara Eliya remains consistently humid, particularly in the latter half of the year, creating a lush environment that is characteristic of its stunning greenery.

September Average Humidity in Nuwara Eliya

This chart illustrates the average monthly humidity levels in Nuwara Eliya, 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 Nuwara Eliya

As September rolls in Nuwara Eliya, the UV Index remains notably high at 15, marking it as an extreme exposure period. This trend of elevated UV levels has been consistent throughout the year, with values hovering between 13 and 16 from January to September, demonstrating that the region is prone to intense solar exposure. Consequently, the burn time remains at a mere 10 minutes, underscoring the importance of sun protection for both residents and visitors alike. If you plan to enjoy the beautiful landscapes of Nuwara Eliya during this time, be sure to take precautions against UV radiation. For a closer look at the UV trends throughout the year, check out Nuwara Eliya UV Index.

Maximum UV Index Levels in Nuwara Eliya for September

The chart shows the monthly maximum UV Index (UVI) for Nuwara Eliya 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.
JanFebMarAprMayJunJulAugSepOctNovDec131416151513131415131211
Data source: Nuwara Eliya 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 Nuwara Eliya

September in Nuwara Eliya, Sri Lanka, offers a splendid blend of sunshine, basking in approximately 309 hours of sunlight. This month stands out as a transition, following the impressive peaks of July and August, which boast 336 and 335 hours respectively. Despite a slight dip in daylight compared to the summer's zenith, September maintains its charm, remaining luminous and inviting. As the year progresses towards the cooler months, sunlight begins to wane, illustrated by the subsequent drop to 293 hours in October. Overall, September’s weather continues the region's trend of abundant sunshine, providing a perfect backdrop for exploring the lush landscapes of this picturesque hill country.

Monthly Sunshine Duration in Nuwara Eliya: September Highlighted

The September sunshine duration represents the total number of hours Nuwara Eliya 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.
JanFebMarAprMayJunJulAugSepOctNovDec259h304h331h328h316h334h336h335h309h293h265h299h
Data source: Nuwara Eliya September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nuwara Eliya During September

In Nuwara Eliya, Sri Lanka, the likelihood of sunny weather sees a slight uptick in September, with a 13% chance of sun, making it one of the more promising months following the dismal August, which recorded only a 5% chance. This gradual increase is part of a broader trend where the chances of sunny days begin to rise again, particularly peaking in December at a notable 40%. January stands out with the least favorable conditions, while February and April offer a glimpse of hope with 33% and 31%, respectively. Overall, September represents a transitional period, hinting at the brighter days that await in the coming months.

Percentage of Sunny Days in September in Nuwara Eliya

The chart illustrates the percentage of sunny days in Nuwara Eliya 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 Nuwara Eliya experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%33%29%31%11%17%11%6%13%9%10%40%
Data source: Nuwara Eliya September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nuwara Eliya in September

As September unfolds in Nuwara Eliya, Sri Lanka, the region experiences a delightful consistency in daylight duration, enjoying 12 hours of sunlight. This trend of ample daylight began in March and has remained steady through the summer months, creating an ideal environment for outdoor activities and exploration. Following the vibrant summer, daylight hours gradually taper to 11 hours in October, marking a subtle transition towards the end of the year. This rhythmic pattern of sunlight not only enhances the beauty of the lush landscapes but also invites residents and visitors alike to bask in the enchanting ambiance of this hill station throughout the sunny September days.

Average Daylight Hours in Nuwara Eliya for September

The chart illustrates the variation in daylight duration in Nuwara Eliya throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 45m11h 53m12h 4m12h 15m12h 25m12h 30m12h 27m12h 19m12h 8m11h 57m11h 47m11h 43m
Data source: Nuwara Eliya daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Nuwara Eliya

In September, Nuwara Eliya experiences a gentle yet invigorating breeze, with an average wind speed of 2.5 m/s (6 mph). This marks a slight decline from the more robust winds of July and August, which peak at 3.0 m/s and 2.7 m/s, respectively. The transition into autumn sees winds calming down, but they still provide a refreshing delight against the backdrop of the lush landscape. Overall, the trend toward lighter winds in the latter part of the year emphasizes the tranquil charm of this Sri Lankan gem, making September an ideal time for leisurely strolls amidst its stunning natural beauty.

Average September Wind Speed in Nuwara Eliya

The chart displays monthly wind speed patterns in Nuwara Eliya, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.51.41.12.22.63.02.72.5 m/s1.91.71.5
Data source: Nuwara Eliya September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Nuwara Eliya Compares to Other Months

The weather in Nuwara Eliya 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 Nuwara Eliya and find detailed weather information for every month.

In September, the weather is marked by a mild average temperature of 20°C (69°F), with highs reaching up to 26°C (79°F) and lows around 15°C (60°F). However, this month sees considerable rainfall, with precipitation totaling 265 mm (10.4 in) over 27 days, contributing to a relatively high humidity level of 81%. In contrast, January offers a slightly cooler atmosphere, with average temperatures around 19°C (67°F), accompanied by similar highs of 26°C (80°F) and a lower minimum of 12°C (53°F). Rainfall is significantly less in January, totaling 109 mm (4.3 in) over just 12 days, and the humidity remains slightly lower at 80%. This shift from September’s abundant precipitation to January’s drier climate creates distinctly different experiences. For a closer look at January conditions, check out Nuwara Eliya weather in January.

September and February in Nuwara Eliya present distinct weather patterns, reflecting the transition from one season to another. September experiences a slightly warmer average temperature of 20°C (69°F) with maximums reaching 26°C (79°F), accompanied by high humidity at 81% and substantial rainfall of 265 mm (10.4 in) over 27 days. In contrast, February offers milder conditions, with temperatures averaging 20°C (68°F) and highs of 27°C (81°F), but considerably less rainfall at 105 mm (4.1 in) across just 14 days, and lower humidity at 72%. For more detailed information about February weather in Nuwara Eliya, visit Nuwara Eliya weather in February.

When comparing the weather in September and March, several key differences emerge. September tends to have milder temperatures, with averages around 20°C (69°F) and maximums reaching 26°C (79°F), while March experiences slightly warmer conditions, boasting a maximum temperature of 29°C (85°F) and an average of 21°C (70°F). However, September is characterized by significantly higher rainfall, with 265 mm (10.4 in) of precipitation over 27 days, compared to March's 126 mm (5.0 in) across just 16 days. Additionally, September's humidity at 81% feels much more oppressive than March's 69%, making for a more pleasant experience in the latter month. For more detailed information, you can explore Nuwara Eliya weather in March.

When comparing the weather in September and April, we can observe some notable differences. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 26°C (79°F), with an average temperature of 20°C (69°F). This month also experiences higher levels of precipitation, totaling 265 mm (10.4 in) over 27 days, accompanied by a humidity level of 81%.

In contrast, April offers slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum reaching 29°C (85°F), resulting in an average of 21°C (71°F). April sees less rainfall at 197 mm (7.7 in) over 19 days, and a lower humidity of 69%. For a more detailed look at Nuwara Eliya's weather during this month, you can check Nuwara Eliya weather in April.

In comparing the weather between September and May, September tends to be slightly cooler, with average temperatures ranging from 15°C (60°F) to a maximum of 26°C (79°F), while May sees a bit warmer temperatures with averages between 16°C (62°F) and 28°C (82°F). Both months experience significant rainfall, but May has a higher total precipitation of 295 mm (11.6 in) compared to September's 265 mm (10.4 in), with May also having a slightly higher number of rainy days at 29 compared to September’s 27. The humidity levels are quite similar, with September at 81% and May at 79%. For more detailed information, you can check Nuwara Eliya weather in May.

When comparing the weather in September and June, both months showcase similar average temperatures, ranging from a minimum of about 15-16°C (60-61°F) to a maximum of 26°C (79-80°F). However, September experiences significantly higher precipitation with 265 mm (10.4 in) over 27 days, compared to June’s 142 mm (5.6 in), also spread across 27 days. Additionally, humidity levels are slightly lower in June at 85%, while September sees a humidity of 81%. For more detailed insights, you can refer to Nuwara Eliya weather in June.

When comparing the weather in September and July, both months exhibit high humidity levels around 81%, contributing to a consistently muggy atmosphere. July has slightly higher minimum temperatures, ranging from 17°C (62°F) to an average of 21°C (70°F), and maxing out at 27°C (81°F). In contrast, September sees a drop in minimum temperatures to 15°C (60°F) and a similar maximum of 26°C (79°F). Additionally, September experiences significantly more precipitation, with 265 mm (10.4 in) over 27 days, compared to July's 185 mm (7.3 in) during the same duration. For those interested in detailed July weather insights, you can refer to Nuwara Eliya weather in July.

In comparing the weather between August and September, September tends to be slightly cooler, with average temperatures ranging from a minimum of 15°C to a maximum of 26°C, while August showcases a minimum of 17°C and a similar maximum of 26°C. Both months experience the same maximum temperature, but September averages out to 20°C compared to August's 21°C. Precipitation levels also rise significantly in September, with 265 mm compared to August's 199 mm, although both months share the same number of rainy days at 27. Humidity levels are slightly lower in September at 81%, compared to 85% in August. For a closer look at how August weather specifically impacts the region, check out this link: Nuwara Eliya weather in August.

September and October showcase similar temperature patterns, with both months experiencing a minimum of 15°C and an average of 20°C. However, October sees an increase in rainfall, with precipitation rising from 265 mm in September to 393 mm, affecting 28 days compared to 27 days in September. Additionally, October's humidity climbs to 89%, up from 81% in September, contributing to a noticeably more muggy atmosphere. For more detailed weather insights, you can visit Nuwara Eliya weather in October.

In comparing the weather between September and November, both months exhibit similar average temperatures, with September having a slight edge at a minimum of 15°C and a maximum of 26°C, while November shows a minimum of 14°C and the same maximum, accompanied by a steady average of 20°C. However, November is characterized by a significant increase in precipitation, rising to 394 mm over 25 days compared to September's 265 mm over 27 days. Additionally, humidity levels in November are higher, reaching 88% compared to September's 81%. For more detailed information about weather patterns, you can explore Nuwara Eliya weather in November.

September and December in Nuwara Eliya offer a mild climate, but notable differences exist. In September, temperatures range from a minimum of 15°C to a maximum of 26°C, with an average of 20°C. The month is marked by significant precipitation, totaling 265 mm over 27 days, and a humidity level of 81%. In contrast, December features slightly lower temperatures, with a minimum of 14°C and a maximum of 25°C, maintaining the same average of 20°C. However, precipitation decreases to 180 mm over just 19 days, coupled with a higher humidity level of 86%. For more specific details, you can check Nuwara Eliya weather in December.

Compare Nuwara Eliya's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Nuwara Eliya

In September, Nuwara Eliya experiences a unique climate compared to other months, with average temperatures settling around a comfortable 20°C (69°F). The month is notably characterized by frequent rainfall—totaling 265 mm—making it one of the wettest periods of the year, with precipitation occurring on about 27 days. This high humidity level of 81% can create a lush and vibrant landscape but also means travelers should be prepared for regular showers. Whether you're seeking the refreshing coolness or the striking scenery that the rain brings, September's weather presents a distinctive charm that sets it apart. For more insights, explore Nuwara Eliya Climate.