Last updated: March 19, 2025
January in Ratnapura, Sri Lanka showcases a tropical climate characterized by warm temperatures and significant rainfall. With a maximum temperature reaching 30°C (86°F) and an average of 23°C (74°F), the month offers a pleasant yet humid experience, with humidity levels hovering around 80%. Visitors should anticipate frequent showers, as the area receives approximately 241 mm (9.5 in) of precipitation over 18 days. This blend of warm weather and abundant moisture creates a lush, vibrant landscape, ideal for exploring the natural beauty of the region.
In January, Ratnapura, Sri Lanka, experiences a comfortable range of temperatures, with nightly lows averaging at 15°C (59°F) and daytime highs peaking around 30°C (86°F). This month showcases a delightful average temperature of 23°C (74°F), making it an ideal time for outdoor exploration. As the year progresses into February, a slight warming trend emerges, with minimum temperatures rising to 16°C (62°F) and maximums reaching 32°C (90°F). Notably, throughout the first few months, the temperature fluctuations remain relatively mild, staying between 15°C and 32°C. By May, although the minimum climbs to 20°C (68°F), the average holds steady at 24°C (76°F), signaling a more consistent warmth. The high temperatures continue through July and August, tapering off slightly as the year transitions into the latter months. Overall, January's mild climate sets the tone for a warm and inviting year in Ratnapura, perfect for those seeking both comfort and adventure.
In January, Ratnapura, Sri Lanka experiences significant rainfall, with a total precipitation of 241 mm (9.5 in) spread across 18 days. This marks the beginning of a remarkable wet season, setting the stage for even higher rainfall in the following months. As the year progresses, rainfall escalates dramatically, peaking in November with an extraordinary 643 mm (25.3 in), while February and March also witness notable increases, highlighting a clear upward trend in precipitation. Despite January's substantial rains, it serves as a precursor to the lush, vibrant landscape that unfolds as Ratnapura transitions deeper into its rainy season. Thus, January plays a crucial role in initiating the region's dynamic hydrological cycle, synonymous with its rich biodiversity and fertile soils.
In January, Ratnapura, Sri Lanka, experiences a high humidity level of 80%, setting the tone for a year characterized by substantial moisture. As the months progress, humidity begins to decline slightly, dropping to 72% in February and continuing its downward trend to 69% in both March and April. However, this respite from humidity is short-lived, with levels rising again in May to 79%. The wet season peaks in the following months, with June and August seeing some of the highest averages at 85%, creating a lush environment typical of tropical climates. Interestingly, September sees a slight decrease to 81%, only to climb once more, peaking at an astonishing 89% in October. The humidity remains high through to December, ending the year with 86%, highlighting Ratnapura's consistent tropical climate that supports a diverse ecosystem and vibrant landscapes year-round.
In January, Ratnapura, Sri Lanka, experiences a formidable UV Index of 12, categorized as extreme, with a quick burn time of just 10 minutes. This marks the beginning of a trend that escalates throughout the months, peaking in March, April, and May, where the UV Index reaches a blistering 15—the highest of the year. As the summer heat continues into June and July, the UV levels slightly dip to 13, but remain in the extreme category, maintaining a burn time of merely 10 minutes. In the latter part of the year, August through October hold steady around 14 to 13, while November and December provide a slight reprieve, dropping to 12 and 11, respectively. Regardless of the month, the extreme exposure levels in Ratnapura demand vigilance; check out the full yearly details at Ratnapura UV Index to stay informed and protected.
UV Risk Categories
January brings 268 hours of sunshine to Ratnapura, Sri Lanka, heralding the start of the year with a moderate glow. As the month transitions into February, sunshine increases to 309 hours, setting the stage for a radiant summer. The sun's embrace peaks in March with an impressive 333 hours, followed closely by April and June, both basking in 331 hours. This trend of abundant sunlight continues through July and August, where Ratnapura basks in an average of 336 and 334 hours, respectively. However, as the monsoon season approaches in the latter half of the year, the hours gradually decline, settling at 277 hours in November before reaching 306 hours in December. This seasonal ebb and flow of sunshine not only adds vibrancy to the landscape but also enriches the cultural tapestry of this beautiful region.
In Ratnapura, Sri Lanka, January typically greets you with a modest 15% chance of sunny weather, making it one of the more overcast months of the year. This trend of limited sunshine continues into May, which plunges to 13%, while the month of February marks a noticeable shift with a 36% chance of brighter days ahead. As we transition through the months, April often emerges with a 37% likelihood of sun, hinting that the dry season is approaching. However, the summer months are generally less favorable for sun-seekers, with chances dwindling further to 11% in July and a mere 6% in August. Notably, December offers a hopeful 40%, showcasing that while January might be cloudy, the promise of sunny days isn't far off.
In Ratnapura, Sri Lanka, January marks the beginning of a consistent daylight pattern with 11 hours of sunlight, a duration that remains steady through February. As March arrives, daylight increases to 12 hours, establishing a pleasant equilibrium that persists from March through August. This stretch of longer days not only enhances outdoor activities but also enriches the region's vibrant natural beauty. By September, the daylight gradually tapers back to 11 hours, continuing through November and December. This cyclical rhythm of daylight duration not only defines the annual climate but also shapes the lifestyle and cultural practices of the people in Ratnapura, embracing the year with both bright days and the enchanting dusk of tropical evenings.
In January, Ratnapura enjoys a gentle breeze with an average wind speed of 1.1 m/s (2 mph), setting a peaceful tone for the start of the year. This tranquil air persists into February and March, where the wind continues to flutter softly at the same rate. However, as April approaches, a subtle shift occurs with speeds increasing slightly to 1.3 m/s (3 mph), hinting at the dynamic changes ahead in the later months. By May, the winds pick up further, reaching 1.9 m/s (4 mph), and continue to strengthen, culminating in July, where they peak at 2.5 m/s (6 mph). Following this zenith, a gradual decline begins, as wind speeds dip again by October to 1.7 m/s (4 mph) before rounding off the year back to a calm 1.0 m/s (2 mph) in December. This trend showcases a seasonal dance of breezes, with January heralding a serene start that transitions into refreshing gusts before mellowing out once more.
The weather in Ratnapura 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 Ratnapura and find detailed weather information for every month.
January and February exhibit relatively warm weather patterns, with February showing slightly higher temperatures. In January, temperatures range from a minimum of 15°C (59°F) to a maximum of 30°C (86°F), averaging around 23°C (74°F). In contrast, February sees a minimum of 16°C (62°F) and a maximum of 32°C (90°F), with an average of 24°C (75°F). Precipitation is more pronounced in February, with 289 mm (11.4 in) over 23 days, compared to January’s 241 mm (9.5 in) across 18 days. Additionally, February experiences lower humidity at 72%, compared to January's 80%. For more detailed information, you can check Ratnapura weather in February.
In comparing the weather of January and March, we observe a notable increase in temperatures. In January, the minimum temperature is 15°C (59°F), with an average of 23°C (74°F) and a maximum of 30°C (86°F). By March, these figures rise slightly, with a minimum of 17°C (62°F), an average of 24°C (75°F), and a maximum of 31°C (88°F). However, March experiences significantly higher precipitation, totaling 384 mm (15.1 in) over 29 days, compared to January's 241 mm (9.5 in) over 18 days. Additionally, the humidity is lower in March at 69%, contrasted with January's higher humidity level of 80%. For more detailed insights, you can check Ratnapura weather in March.
In January, the weather is quite warm with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 30°C (86°F), and an average of 23°C (74°F). However, this month is characterized by significant precipitation, totaling 241 mm (9.5 in) over 18 days, accompanied by high humidity levels of 80%.
In contrast, April sees slightly higher temperatures, with a minimum of 18°C (65°F), an average of 24°C (76°F), and a maximum of 31°C (88°F). While it remains warm, April is notably wetter, receiving 415 mm (16.3 in) of rain across 28 days, but the humidity drops to 69%. For more details on the April weather in the region, you can check this link: Ratnapura weather in April.
January and May in Ratnapura present distinct weather contrasts. January experiences a milder temperature range, with minimums around 15°C (59°F) and an average of 23°C (74°F), while May starts warmer, with minimums at 20°C (68°F) and an average of 24°C (76°F). Although both months reach a maximum of 30°C (86°F), May is noticeably wetter, receiving 431 mm (17.0 in) of precipitation over 29 days compared to January's 241 mm (9.5 in) over 18 days. Humidity levels remain fairly similar, with January at 80% and May slightly lower at 79%. For more insights on May's weather, check out this link: Ratnapura weather in May.
January and June exhibit notable differences in weather patterns, despite their proximity in the calendar year. In January, temperatures range from a mild 15°C (59°F) to a warm 30°C (86°F) with an average of 23°C (74°F). The month is characterized by significant rainfall, totaling 241 mm (9.5 in) over 18 days, accompanied by a humidity level of 80%. In contrast, June sees slightly higher minimum temperatures, starting at 20°C (68°F) and maxing out at 29°C (84°F), with a narrower average of 24°C (75°F). Although the total precipitation in June is somewhat less at 233 mm (9.2 in), it occurs over more days, totaling 28 days, and comes with increased humidity at 85%. For more detailed insights into the June weather in Ratnapura, you can visit Ratnapura weather in June.
In January, the weather is generally warm, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 30°C (86°F), and an average of 23°C (74°F). This month sees significant precipitation, with 241 mm (9.5 in) occurring over 18 rainy days and humidity levels at 80%. In contrast, July experiences slightly higher minimum temperatures, with lows around 20°C (68°F) and an average of 24°C (75°F), though the maximum temperature is a bit lower at 28°C (83°F). Rainfall is also substantial in July, with 219 mm (8.6 in) spread over 29 days, and humidity remains high at 81%. For a more detailed comparison, you can check Ratnapura weather in July.
In January, the weather features a minimum temperature of 15°C (59°F) and a maximum of 30°C (86°F), with an average temperature of 23°C (74°F). It experiences significant rainfall, totaling 241 mm (9.5 in) over 18 days, and humidity levels remain relatively high at 80%. Conversely, August shows a slight increase in minimum temperature to 20°C (68°F) and a maximum of 28°C (83°F), with the same average temperature of 23°C (74°F). However, it sees increased precipitation, totaling 245 mm (9.6 in) across 27 days, alongside a marginally higher humidity level of 85%. For more specific details about August weather, you can check Ratnapura weather in August.
In January, the weather is characterized by warm temperatures ranging from a minimum of 15°C (59°F) to a maximum of 30°C (86°F), with an average of 23°C (74°F). This month experiences considerable rainfall, with 241 mm (9.5 in) of precipitation spread over 18 days and humidity levels around 80%. In contrast, September sees slightly higher temperatures, with minimums at 19°C (66°F) and maximums reaching 29°C (84°F), while maintaining the same average of 23°C (74°F). However, September is wetter, recording 287 mm (11.3 in) of precipitation over 26 days, and a humidity level that slightly increases to 81%. For more details on the weather conditions in September, you can visit Ratnapura weather in September.
In January, the weather typically features pleasant temperatures ranging from a minimum of 15°C (59°F) to a maximum of 30°C (86°F), with an average of 23°C (74°F). However, it is also characterized by significant rainfall, with 241 mm (9.5 in) of precipitation over 18 days and a humidity level of 80%. In contrast, October experiences slightly higher minimum temperatures at 19°C (66°F) and boasts a similar average of 23°C (74°F), but the maximum temperature is a bit cooler at 28°C (84°F). The month is notably wetter, with 475 mm (18.7 in) of rainfall spread over 29 days and increased humidity, reaching 89%. For more detailed information on the October weather in this region, you can visit Ratnapura weather in October.
In comparing the weather between January and November, January generally offers slightly milder temperatures, with a minimum of 15°C (59°F) and a maximum of 30°C (86°F), averaging around 23°C (74°F). However, it experiences considerable rainfall, totaling 241 mm (9.5 in) over approximately 18 days, with humidity levels around 80%. In contrast, November tends to be warmer at night with a minimum of 18°C (65°F) and slightly cooler daytime temperatures, peaking at 29°C (84°F). November is also significantly wetter, receiving 643 mm (25.3 in) of precipitation over 26 days and higher humidity at 88%. For more details on the weather during this month, you can check Ratnapura weather in November.
In January, the weather remains relatively warm with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 30°C (86°F), and an average of 23°C (74°F). This month experiences 241 mm (9.5 in) of precipitation over about 18 days, contributing to a humidity level of 80%. In contrast, December tends to be slightly warmer at night, with a minimum temperature of 17°C (63°F), while maintaining the same average and maximum temperatures. However, December sees a significant increase in rainfall, with 402 mm (15.8 in) over 27 days, resulting in higher humidity levels of 86%. For more detailed insights into December's weather, you can refer to Ratnapura weather in December.
January in Ratnapura experiences a warm atmosphere, characterized by mild temperatures that make it distinct from the cooler months. While the average temperature hovers around a pleasant 23°C, visitors should prepare for frequent rainfall, as the month sees about 18 days of precipitation contributing to a hefty 241 mm total. With humidity levels around a sticky 80%, the air feels lush and tropical, setting a dramatic contrast to the drier conditions that define other months. For those looking to explore Ratnapura's unique climate patterns, more insights can be found in the detailed Ratnapura Climate resource.