Last updated: April 14, 2025
Sri Lanka's climate is characterized by marked temperature variations and seasonal precipitation patterns, creating a diverse and vibrant environment. In the Central region, temperatures dip to a minimum of 12°C (53°F) in January, while the North Central province can witness sweltering maximums of 39°C (102°F) in May. Rainfall is similarly variable; February sees the driest conditions in the Northern Province with only 22 mm (0.9 in) of precipitation, while November drenches the Sabaragamuwa region with a staggering 528 mm (20.8 in). Humidity levels, too, fluctuate significantly, with average minimums of 69% in Uva during April surging to an impressive 89% in October. This intricate interplay of temperature, precipitation, and humidity shapes the unique ecological tapestry of Sri Lanka.
Sri Lanka boasts a diverse array of climate zones, each defined by its unique Köppen-Geiger classifications. The vibrant Central region is characterized by a tropical rainforest climate (Af), while the Eastern Province offers a blend of tropical monsoon (Am), rainforest (Af), and savanna (As) climates. Moving to the North Central and North Western provinces, one can experience similar tropical monsoon and savanna climates, with the North Western also showcasing some areas of rainforest (Af). In the Northern Province, the climate is predominantly savanna (As), contrasting with the lush rainforest conditions found in the Sabaragamuwa, Southern, Uva, and Western provinces, all classified as Af. This rich climatic diversity contributes to Sri Lanka's enchanting landscapes and vibrant ecosystems, making it a fascinating destination for nature lovers.
| Climate Zone | Description |
|---|---|
| Af | Tropical rainforest climate with no dry season and high temperatures year-round. |
| Am | Tropical monsoon climate with heavy rainfall and high temperatures. |
| As | Tropical savanna climate with a dry season occurring in summer. |
Sri Lanka experiences a diverse range of temperatures throughout the year, showcasing a climatic tapestry that varies from the cool hills of the Central region to the sweltering plains of the North Central province. In January, temperatures start cool in the Central area at a minimum of 12°C (53°F), while the Western region sizzles at a maximum of 36°C (96°F). As the months progress into February and March, the heat intensifies, peaking at 38°C (100°F) in Sabaragamuwa by March. April and May bring consistent warmth, with highs remaining around 38°C (101°F) to 39°C (102°F) in the North Central region. This trend continues into the summer months, with July and August also experiencing these high temperatures. Yet, as the year winds down into October and November, we see a slight cooling down, though the North Central province still hovers around 36°C (97°F). December brings a gentle decrease, with the Central region's minimum settling at 14°C (58°F). Overall, the temperature trends highlight Sri Lanka's tropical climate, where striking contrasts between cool mountain air and balmy coastal conditions create a unique and inviting environment year-round.
Sri Lanka's precipitation patterns reveal a fascinating contrast across different regions and months. The Northern Province experiences a relatively dry spell in February, with minimal rainfall peaking at just 22 mm (0.9 in), while the lush terrain of Sabaragamuwa receives a remarkable 528 mm (20.8 in) in November, showcasing the impact of monsoon dynamics. Moreover, rainfall frequency varies significantly; June sees a mere four wet days in the Northern Province, while the Western Province endures up to 29 rainy days in July. This combination of total precipitation and frequency illustrates the diverse climatic experiences across Sri Lanka, influencing agriculture, water resources, and local ecosystems throughout the year.
Sri Lanka's humidity levels exhibit significant variation throughout the year, particularly in the Uva province. In April, residents experience a more comfortable minimum humidity of 69%, marking the transition to drier conditions. However, as the monsoon season reaches its peak in October, humidity soars to a maximum of 89%, creating a lush and verdant landscape. This dramatic shift highlights the region's tropical climate, where moisture-rich air plays a crucial role in supporting its vibrant ecosystems. Understanding these humidity trends is essential for anyone looking to explore the beauty of Uva.
In March, Sri Lanka experiences notably high UV Index levels, with the North Central region recording an average daily maximum UVI of 15 and Uva slightly leading at 16. These figures highlight a significant trend of elevated UV radiation during this month, emphasizing the importance of sun safety measures in these areas. As seasonal changes approach, residents and visitors alike should remain vigilant about UV exposure, particularly in regions where the index peaks. This rising trend serves as a reminder of the need for protective gear and sunscreen when enjoying the vibrant outdoor activities Sri Lanka has to offer.
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Sunshine duration in Sri Lanka showcases notable variability across regions and months, reflecting the island's diverse climate. In January, the Southern region basks in 273 hours of sunlight, while the Central region enjoys 261 hours. As the seasons transition to March, the Western part shines brightly with an impressive 332 hours. However, it’s in July that the Eastern Province takes the lead, boasting an exceptional 349 hours of sunshine. This dynamic range not only highlights the geographical disparities in sunlight but also suggests that visitors can find ample sun year-round, dependent on their chosen destination.
When considering the likelihood of sunny weather in Sri Lanka, a clear trend emerges: certain times and regions offer markedly different chances of sunshine. For instance, the month of August in Sabaragamuwa sees a modest 7% likelihood of sunny skies, suggesting it's not the best time for sun-seekers in that area. In contrast, April in the Northern Province boasts a significantly higher probability of 60%, making it an ideal choice for those looking to bask in the sun. This stark contrast highlights the importance of timing and location when planning your sunny getaway in this beautiful island nation.
In Sri Lanka's Northern Province, daylight hours show a subtle yet intriguing variation throughout the year. December enjoys about 11 hours of sunshine, providing a cozy winter ambiance, while June boasts longer days with approximately 12 hours of daylight, creating an inviting atmosphere for outdoor activities. This gradual increase in daylight hours from winter to early summer not only enhances the region's vibrant landscapes but also signifies a shift towards more prolonged adventures and exploration as the seasons transition.
Nestled in the heart of Sri Lanka, Central Province boasts a climate that varies beautifully throughout the year. With January kicking off at a cool 12°C (53°F) and peaking at a sultry 37°C (99°F) by April and May, temperatures are generally pleasant. However, the region experiences significant rainfall, especially in October and November, when it receives over 400 mm (16.2 in) of precipitation, contributing to its lush greenery. While humidity levels remain high, fluctuating from 69% to 89%, the vibrant landscape remains a captivating draw for visitors. For more detailed insights, check out the full Central climate.
The Eastern Province of Sri Lanka experiences a tropical climate, characterized by warm temperatures year-round. January kicks off the year with pleasant conditions, where temperatures range from a cool 18°C (65°F) to a balmy 31°C (88°F). As the months progress, temperatures peak in May and June, often hitting maximums of 38°C (101°F) and 39°C (102°F), making them the warmest months. Rainfall is highest from October to December, with November seeing a remarkable 326 mm (12.8 in), contributing to elevated humidity levels that often exceed 80%. This dynamic climate supports a rich tapestry of biodiversity, making the area captivating for visitors; for more details, check out the Eastern Province climate.
In North Central Sri Lanka, the climate is characterized by warm temperatures and significant humidity throughout the year. Average temperatures fluctuate from a cozy 25°C (77°F) in January to a sizzling 29°C (84°F) from April through July, often peaking at 39°C (102°F) during the summer months. Rainfall varies dramatically, with the region experiencing its heaviest precipitation in October and November, accumulating over 270 mm (10.8 in) each month, while February tends to be the driest. Humidity remains high, particularly in the monsoon season, making the air feel more intense. For more detailed insights, explore North Central climate.
The climate in North Western Sri Lanka is characterized by a warm and humid atmosphere, making it an inviting destination year-round. Temperatures range from a cool 18°C (64°F) in January to a sweltering 38°C (100°F) in March and April, with averages hovering around 27-28°C (81-83°F) throughout much of the year. Rainfall peaks during the monsoon months of October and November, with more than 300 mm (12 inches) of precipitation, resulting in lush, verdant landscapes. Humidity remains high, particularly from June to October, often exceeding 80%, which can amplify the tropical experience. For a deeper dive into the region's climate, explore North Western climate.
The climate of Northern Province, Sri Lanka is characterized by a warm tropical ambiance marked by striking temperature variations throughout the year. With January temperatures ranging from a cool 17°C (63°F) to a sizzling 32°C (89°F), the province transitions to even warmer weather by April and May, where highs can reach 38°C (100°F). Rainfall is seasonal, peaking in November with 348 mm (13.7 in), while humidity hovers around 78% in January and can climb to 85% in August, creating a lush environment. The dry months of February and March provide a brief respite, making them ideal for exploration. For more details, visit Northern Province climate.
Nestled in the heart of Sri Lanka, Sabaragamuwa boasts a tropical climate characterized by warm temperatures and abundant rainfall throughout the year. From January to May, temperatures can soar up to 38°C (100°F), particularly in March, while the region experiences its heaviest rains from September to November, peaking at 528 mm (20.8 in) in November. Humidity levels remain high, especially during the wet months, often reaching 89% in October. The combination of heat and moisture creates a lush, vibrant environment, perfect for exploring Sri Lanka’s natural beauty. Discover more about the unique weather patterns of this region by visiting Sabaragamuwa climate.
The climate in Southern Sri Lanka is characterized by warm temperatures and seasonal rainfall, making it a tropical paradise year-round. Between January and April, temperatures hover between 20°C (69°F) and 35°C (95°F), offering an inviting atmosphere for visitors. However, as the monsoon season kicks in from May to October, rainfall significantly increases, peaking at 282 mm (11.1 in) in May, while humidity levels remain consistently high, around 76% to 83%. Despite the downpours, the lush greenery and vibrant landscapes that emerge provide stunning scenery, inviting exploration and adventure. For more insights on the region, check out the Southern climate.
Nestled in the heart of Sri Lanka, Uva experiences a diverse climate characterized by warm temperatures and seasonal rainfall. January begins the year fresh with lows around 13°C (57°F) and ample sunshine, gradually warming by April to highs reaching 37°C (99°F). The onset of the monsoon in May brings heavier showers, peaking in November with an impressive 326 mm (12.8 in) of rain, while humidity levels often hover around 80%. This unique weather pattern creates a lush environment that thrives under the tropical sun, making it a captivating destination for nature lovers and adventurers alike. For more details, visit Uva climate.
Nestled along the stunning coastline, Western Sri Lanka experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average daily temperatures hover around 27°C (81°F), with highs often reaching up to 37°C (100°F) in the peak months of February and March. The region sees its heaviest rainfall from May to October, with November alone recording over 348 mm (13.7 inches). Humidity levels can be high, especially during the monsoon season, making it feel even warmer. For a deeper dive into this vibrant climate, check out the detailed information at Western climate.
The climate of Sri Lanka showcases a striking diversity, with temperatures ranging from a cool 12°C (53°F) in January in the Central region to a scorching 39°C (102°F) in May in the North Central area. This variation plays a crucial role in shaping the island's ecosystems and agricultural practices. Precipitation patterns reveal a dramatic contrast as well, with a low of just 22 mm (0.9 in) in February in the Northern Province, escalating to an impressive 528 mm (20.8 in) in November in Sabaragamuwa. Coupled with humidity levels that fluctuate between a comfortable 69% in April in Uva, soaring to a steamy 89% in October, the island experiences a unique climatic rhythm that influences both daily life and the breathtaking landscapes. Overall, these trends illustrate Sri Lanka's complex interplay of temperature, rainfall, and humidity, contributing to its rich biodiversity and vibrant cultures.