January Weather in Kelaniya, Sri Lanka

Last updated: March 19, 2025

January in Kelaniya, Sri Lanka offers a warm tropical climate, with maximum temperatures reaching up to 36°C (96°F) and an inviting average of 27°C (81°F), perfect for those who enjoy warm weather. The minimum temperature dips to 19°C (66°F) during the cooler nights, providing a comfortable respite. Rainfall is moderate, with 68 mm (2.7 in) of precipitation spread over 6 days, leading to lush greenery. Humidity hovers around 77%, enhancing the tropical feel of the month and making January a vibrant time to experience the natural beauty of Kelaniya.

January Temperature in Kelaniya

In January, Kelaniya, Sri Lanka experiences a range of temperatures that set the tone for the warm, tropical climate of the region. With a minimum of 19°C (66°F) and soaring to an impressive 36°C (96°F), it embraces a lively average of 27°C (81°F). This month marks the beginning of a gradual increase in warmth, as temperatures rise steadily from January through March, peaking at 37°C (99°F) over the next two months. As the year progresses, the minimum temperatures also begin to climb, starting at 19°C in January and reaching 24°C (75°F) by August. Despite the heat, the consistent averages around 27°C (81°F) provide a pleasant backdrop for outdoor activities. By February, the trend solidifies with even higher peaks and a sense of tropical vibrancy flourishing. Overall, January in Kelaniya offers a captivating taste of the warm climate that defines the months to come.

January Weather in Kelaniya: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Kelaniya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec818383838282818181808080
Data source: Temperature data for Kelaniya generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Kelaniya

In January, Kelaniya, Sri Lanka, experiences relatively mild precipitation, with an average of 68 mm (2.7 in) falling over just 6 days. This marks the beginning of the year with a lighter rainfall pattern compared to subsequent months. As the seasons progress, February slightly decreases to 61 mm (2.4 in), but by March, the precipitation begins to escalate dramatically, reaching 122 mm (4.8 in) over 17 days. This increase paves the way for the wetter months ahead, with April and May showcasing substantial rainfall, peaking at 284 mm (11.2 in) in May, as the region transitions into its wet season. Notably, the number of rainy days climbs significantly as the year unfolds, culminating in October's peak, where intense showers contribute to a total of 377 mm (14.9 in) over 30 days. This striking upward trend underscores Kelaniya's distinct seasonal shifts, demonstrating an evolving landscape drenched in vibrant rainfall as the year progresses.

January Precipitation Trends in Kelaniya

The chart displays monthly precipitation patterns in Kelaniya, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6861123144284270205250245377358170
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Kelaniya

In January, Kelaniya, Sri Lanka experiences a humidity level of 77%, setting the tone for a relatively humid start to the year. As the months progress, this figure dips slightly in February to 73% but quickly stabilizes around the 74% mark through March and April. The humidity begins to rise again in May, reaching 76%, before escalating dramatically in the warmer months of June through August, where it peaks at an impressive 83%. Following the peak, humidity remains high, tapeing off to 82% in September and 80% in November and December. This pattern illustrates Kelaniya’s tropical climate, characterized by consistent high humidity, particularly from mid-year onwards, a crucial factor for residents and visitors alike.

January Average Humidity in Kelaniya

This chart illustrates the average monthly humidity levels in Kelaniya, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec77%73%74%74%76%82%82%83%82%81%80%80%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Kelaniya

In January, Kelaniya, Sri Lanka, experiences an extreme UV Index of 12, necessitating caution as skin can burn in just 10 minutes. This trend of high UV exposure continues into February, with an increase to 13, followed by an alarming peak of 15 in March, affirming the necessity for sun protection during this period. As the months progress towards April and May, the UV Index remains notably high at 14, before slightly easing to 13 in June and July. The UV levels again fluctuate as the year moves towards its end, but they remain within the extreme category for most months, with only November and December showing a modest decline. As such, residents and visitors alike should remain vigilant in protecting themselves from the sun's harsh rays throughout January. For more insights on UV exposure in Kelaniya, visit the comprehensive resource Kelaniya UV Index.

Maximum UV Index Levels in Kelaniya for January

The chart shows the monthly maximum UV Index (UVI) for Kelaniya in January, 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.
JanFebMarAprMayJunJulAugSepOctNovDec121315141413121314131110
Data source: Kelaniya January 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.

January Sunshine in Kelaniya

January in Kelaniya, Sri Lanka, welcomes 267 hours of brilliant sunshine, marking the beginning of an enchanting year. As the months unfold, the sunshine steadily increases, peaking in March and April with 331 hours each, creating a luminous backdrop for the vibrant landscape. Following this high, sunshine hours gradually decline but remain pleasantly generous, with February showcasing 310 hours and May close behind at 309 hours. The sunnier months almost paradoxically transition into a more moderate output in November’s 270 hours, illustrating the gentle ebb of daylight as the year draws to a close. This annual rhythm not only highlights the tropical charm of Kelaniya but also prepares visitors for varied experiences through its seasonal luminosity.

Monthly Sunshine Duration in Kelaniya: January Highlighted

The January sunshine duration represents the total number of hours Kelaniya experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec267h310h331h331h309h322h330h325h300h291h270h307h
Data source: Kelaniya January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kelaniya During January

In Kelaniya, Sri Lanka, January welcomes a 21% chance of sunny weather, marking the beginning of the year with a modest promise of clear skies. As the months progress toward February, the likelihood of sunshine nearly doubles to 50%, revealing a seasonal trend of increasing brightness. While March and April maintain a promising forecast with chances of 31% and 42% respectively, the weather takes a dip as it transitions into the wetter months of May and June, where sunny chances fall to 16% and 18%. This pattern continues, with July and August experiencing the lowest probabilities of sunshine at 14% and 8%. However, the year eventually pivots back to clearer skies, as December shows a revitalized 53% chance of sun, capping off the year on a brighter note. Overall, January may not be the sunniest month, but it sets the stage for a gradual increase in sunshine as the season unfolds.

Percentage of Sunny Days in January in Kelaniya

The chart illustrates the percentage of sunny days in Kelaniya throughout the year, with January 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 Kelaniya experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%50%31%42%16%18%14%8%14%14%12%53%
Data source: Kelaniya January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kelaniya in January

In January, Kelaniya, Sri Lanka enjoys a balanced daylight duration of 11 hours, a reprieve that continues into February. However, as March rolls in, the days gradually lengthen, reaching 12 hours of daylight that persists through the subsequent months until September. This half of the year is characterized by a stable and generous amount of sunlight, perfect for outdoor activities and exploration. As October approaches, the daylight duration begins to taper off again, reverting to 11 hours in October, November, and December, drawing the year to a close with a touch of familiarity in its rhythm. This cyclical trend not only marks the passage of time in Kelaniya but also enriches its vibrant culture and nature.

Average Daylight Hours in Kelaniya for January

The chart illustrates the variation in daylight duration in Kelaniya throughout the year, with January 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 28m12h 19m12h 8m11h 56m11h 47m11h 42m
Data source: Kelaniya daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Kelaniya

In January, the winds in Kelaniya, Sri Lanka are typically gentle, averaging around 2.1 m/s (5 mph). This calmness sets the tone for the month, making it a pleasant time for outdoor activities. However, as the year progresses into February, a noticeable increase in wind speed to 2.9 m/s (6 mph) reflects the gradual shift towards breezier conditions. The winds fluctuate slightly in the following months, with March presenting a dip at 1.5 m/s (3 mph)—the calmest of the year. By the middle of the year, particularly in July, winds pick up significantly, reaching 3.5 m/s (8 mph), indicating a transition into a more dynamic atmosphere. While the trend suggests variable wind speeds throughout the seasons, January stands out for its serene breezes, laying the groundwork for the more vigorous winds that follow in the subsequent months.

Average January Wind Speed in Kelaniya

The chart displays monthly wind speed patterns in Kelaniya, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.1 m/s2.91.52.02.73.13.53.23.02.52.32.2
Data source: Kelaniya January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Kelaniya Compares to Other Months

The weather in Kelaniya changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Kelaniya and find detailed weather information for every month.

January and February showcase similar warm climates, with February experiencing slightly higher temperatures. While January has a minimum temperature of 19°C (66°F) and an average of 27°C (81°F), February's temperatures start a bit warmer with a minimum of 20°C (68°F) and an average of 28°C (83°F). February also records a maximum temperature of 37°C (99°F), just above January's peak of 36°C (96°F).

In terms of precipitation, January sees 68 mm (2.7 in) across 6 days, whereas February has a slightly lower rainfall of 61 mm (2.4 in) spread over 8 days. Humidity levels are marginally lower in February at 73%, compared to January’s 77%. For more detailed weather information, you can check Kelaniya weather in February.

In January, the weather is warm with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 36°C (96°F), averaging around 27°C (81°F). The month receives a total of 68 mm (2.7 in) of precipitation over approximately 6 days, with humidity levels averaging 77%.

Conversely, March experiences slightly warmer temperatures, with minimums reaching 22°C (73°F) and maximums peaking at 37°C (99°F), averaging 29°C (84°F). However, it also sees increased rainfall, totaling 122 mm (4.8 in) over 17 days, and a lower humidity level of 74%. For a detailed look at the weather in March, visit Kelaniya weather in March.

In January, the weather features warmer temperatures with a minimum of 19°C (66°F) and an average of 27°C (81°F), while April sees slightly higher minimum temperatures, starting at 23°C (74°F) and averaging 28°C (83°F). Although April is warmer, it also brings more rainfall, with precipitation rising from 68 mm (2.7 in) in January to 144 mm (5.7 in) in April, occurring over a significant increase in rainy days from 6 to 25. Additionally, while January maintains a higher humidity level at 77%, April's humidity edges down slightly to 74%. For more detailed weather conditions, you can check Kelaniya weather in April.

In January, the weather tends to be warm, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 36°C (96°F) and an average of 27°C (81°F). This month experiences around 68 mm (2.7 in) of precipitation over approximately 6 days, resulting in a fairly humid environment with humidity levels at 77%. In contrast, May sees slightly higher minimum temperatures of 24°C (75°F) and a similar average of 28°C (83°F), with a maximum of 34°C (93°F). However, May is significantly wetter, with precipitation measuring 284 mm (11.2 in) over 29 days, and humidity levels remain comfortably high at 76%. For more detailed insights into the weather in May, check out Kelaniya weather in May.

January and June exhibit distinctly different weather patterns. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 36°C (96°F), with an average of 27°C (81°F). The month also sees relatively low precipitation, totaling 68 mm (2.7 in) over just 6 days, accompanied by a humidity level of 77%. In contrast, June features a warmer minimum temperature of 24°C (76°F) and a more consistent average of 28°C (82°F), but with cooler maximum temperatures peaking at 32°C (90°F). This month is significantly wetter, with precipitation soaring to 270 mm (10.6 in) spread across 29 days, along with a slightly higher humidity level of 82%. For more details, you can check out Kelaniya weather in June.

In January, the weather is characterized by warm temperatures, with a minimum of 19°C (66°F), an average of 27°C (81°F), and a maximum reaching 36°C (96°F). The month sees a moderate level of precipitation at 68 mm (2.7 in) over six days, accompanied by a humidity level of 77%. In contrast, July experiences slightly warmer temperatures, with a minimum of 23°C (74°F) and a consistent average of 27°C (82°F), but a lower maximum of 32°C (89°F). However, July is significantly wetter, with 205 mm (8.1 in) of rainfall over 30 days and a humidity level of 82%. For a detailed view of July weather, visit Kelaniya weather in July.

In January, the weather is characterized by warmer temperatures, with a minimum of 19°C (66°F), an average of 27°C (81°F), and a maximum reaching 36°C (96°F). The month sees relatively low precipitation of 68 mm (2.7 in) over six days, accompanied by a humidity level of 77%. In contrast, August experiences cooler minimum temperatures of 24°C (75°F) and a moderate maximum of 31°C (88°F), while maintaining the same average of 27°C (81°F). However, August is marked by significantly higher rainfall, totaling 250 mm (9.8 in) spread across 29 days, resulting in increased humidity at 83%. For more detailed weather patterns, visit Kelaniya weather in August.

In comparison to January, September experiences notably warmer nights, with minimum temperatures rising from 19°C (66°F) to 23°C (73°F). Both months share the same average temperature of 27°C (81°F), but January's maximum reaches a hotter 36°C (96°F) compared to September's peak of 32°C (90°F). Precipitation in September is significantly higher, totaling 245 mm (9.6 in) over 27 days, compared to January's 68 mm (2.7 in) across just 6 days. Additionally, humidity levels spike slightly from 77% in January to 82% in September, contributing to a more oppressive atmosphere. For more insights, you can check Kelaniya weather in September.

In January, the weather tends to be warm and relatively dry, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 36°C (96°F), and an average of 27°C (81°F). The month also sees around 68 mm (2.7 in) of precipitation spread over approximately 6 days, resulting in a humidity level of 77%.

In contrast, October experiences a shift to cooler temperatures, with a minimum of 23°C (73°F) and a maximum of 32°C (89°F), maintaining a similar average of 27°C (80°F). However, October is significantly wetter, receiving 377 mm (14.9 in) of rain over the course of about 30 days, which raises the humidity slightly to 81%. For more information on October weather patterns, you can check Kelaniya weather in October.

When comparing the weather in January and November, several distinct differences emerge. January typically features a warm climate with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 36°C (96°F), accompanied by relatively low precipitation at 68 mm (2.7 in) over just 6 days, and an average humidity of 77%. In contrast, November experiences slightly higher temperatures, with a minimum of 22°C (72°F) and a maximum of 32°C (90°F), but sees significantly increased rainfall of 358 mm (14.1 in) across 26 days, as well as a marginally higher humidity level of 80%. For more insights into the rainy conditions, you can check out Kelaniya weather in November.

In comparing the weather of January and December, January experiences slightly warmer conditions with minimum temperatures around 19°C (66°F) and maximums reaching up to 36°C (96°F). In contrast, December has a minimal temperature of 20°C (69°F) and a cooler maximum of 34°C (94°F). Additionally, January sees significantly less precipitation at 68 mm (2.7 in) over just 6 days, while December is much wetter, with 170 mm (6.7 in) of rain falling over 16 days. Humidity levels are relatively similar, with January at 77% and December slightly higher at 80%. For more detailed information, you can check Kelaniya weather in December.

Compare Kelaniya's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Kelaniya

In January, Kelaniya experiences a unique blend of warmth and humidity that sets it apart from other months of the year. With average temperatures hovering around 27°C (81°F), this month showcases some of the region's hottest days, peaking at a sweltering 36°C (96°F). While the 77% humidity can make the heat feel even more intense, the rainfall is relatively modest with about 68 mm occurring over six days, providing much-needed relief. This month marks the transition into the drier season, making it a compelling time to experience the vibrant natural beauty of Kelaniya. For a comprehensive look at the climate throughout the year, visit Kelaniya Climate.