Hambantota (Mattala) weather by month & the best time to visit
Sri Lanka · beach resort · tropical rainforest climate
The best time to visit Hambantota (Mattala) is July — its sunniest month (Sunshine Score 81/100), with June and August close behind. Hambantota (Mattala) averages about 2,589 hours of sunshine a year. Daytime highs around 30°C / 86°F and roughly 73 mm of rain in July.
When is the best time to visit Hambantota (Mattala)?
For sunshine, the best time to visit Hambantota (Mattala) is July, then June and August. The dullest month is April (67/100, 188 mm of rain). The full month-by-month picture is in the table below.
How sunny is Hambantota (Mattala)?
Hambantota (Mattala) gets a lot of sun: around 2,589 hours a year. Conditions barely change through the year — only 14 Sunshine Score points separate July from April. It ranks #5 of 6 destinations in Sri Lanka for annual sunshine, below the national median of 2,591 hours. Rain has a clear season: the wettest stretch, around November, carries about 42% of the annual 1,920 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 68 | 29° / 84°F | 22° / 72°F | 140 mm | 9 | 28° / 82°F |
| February | 75 | 30° / 86°F | 22° / 72°F | 105 mm | 10 | 29° / 84°F |
| March | 74 | 31° / 88°F | 23° / 73°F | 112 mm | 11 | 30° / 86°F |
| April | 67 | 31° / 88°F | 25° / 77°F | 188 mm | 11 | 31° / 88°F |
| May | 67 | 30° / 86°F | 25° / 77°F | 167 mm | 10 | 30° / 86°F |
| June | 77 | 30° / 86°F | 24° / 75°F | 91 mm | 10 | 28° / 82°F |
| July | 81 | 30° / 86°F | 24° / 75°F | 73 mm | 10 | 28° / 82°F |
| August | 77 | 31° / 88°F | 24° / 75°F | 94 mm | 11 | 27° / 81°F |
| September | 67 | 31° / 88°F | 24° / 75°F | 147 mm | 11 | 29° / 84°F |
| October | 67 | 30° / 86°F | 24° / 75°F | 250 mm | 10 | 29° / 84°F |
| November | 67 | 29° / 84°F | 24° / 75°F | 306 mm | 8 | 30° / 86°F |
| December | 67 | 28° / 82°F | 23° / 73°F | 247 mm | 8 | 29° / 84°F |
Sea temperature in Hambantota (Mattala) by month
The sea off Hambantota (Mattala) is warmest in April at around 31°C / 88°F, and coolest in August at 27°C / 81°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Hambantota (Mattala): questions and answers
What kind of destination is Hambantota (Mattala)?
Hambantota (Mattala) is a beach resort in Sri Lanka with a tropical rainforest climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Hambantota (Mattala) get a year?
Hambantota (Mattala) gets about 2,589 hours of sunshine a year, at its best around July.
When is the best time to visit Hambantota (Mattala)?
The sunniest time to visit Hambantota (Mattala) is July, when the Sunshine Score peaks at 81/100 (with June and August close behind). Expect daytime highs around 30°C / 86°F.
What is the least sunny month in Hambantota (Mattala)?
April is the least sunny month in Hambantota (Mattala), scoring 67/100 with about 188 mm of rain.
What is the sea temperature in Hambantota (Mattala)?
The sea in Hambantota (Mattala) ranges from about 27°C (August) to 31°C (April). Month-by-month sea temperatures are on this page.
How strong is the sun in Hambantota (Mattala)?
The typical midday UV index in Hambantota (Mattala) peaks around 11 (extreme) in March, easing to about 8 (very high) in November. Month-by-month midday UV values are in the UV column of the table on this page.
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