Ilhéus weather by month & the best time to visit
Brazil · beach resort · tropical monsoon climate

The best time to visit Ilhéus is September — its sunniest month (Sunshine Score 83/100), with August and October close behind. Ilhéus averages about 2,484 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 57 mm of rain in September.
When is the best time to visit Ilhéus?
For sunshine, the best time to visit Ilhéus is September, then August and October. The dullest month is March (70/100, 126 mm of rain). The full month-by-month picture is in the table below.
How sunny is Ilhéus?
Ilhéus gets a moderate 2,484 hours of sunshine a year. Conditions barely change through the year — only 13 Sunshine Score points separate September from March. It ranks #67 of 131 destinations in Brazil for annual sunshine, below the national median of 2,486 hours. The year's 1,194 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 75 | 28° / 82°F | 26° / 79°F | 100 mm | 13 | 28° / 82°F |
| February | 75 | 28° / 82°F | 26° / 79°F | 99 mm | 13 | 29° / 84°F |
| March | 70 | 28° / 82°F | 26° / 79°F | 126 mm | 11 | 30° / 86°F |
| April | 71 | 28° / 82°F | 26° / 79°F | 120 mm | 11 | 29° / 84°F |
| May | 73 | 27° / 81°F | 25° / 77°F | 112 mm | 9 | 29° / 84°F |
| June | 74 | 26° / 79°F | 24° / 75°F | 107 mm | 8 | 27° / 81°F |
| July | 77 | 25° / 77°F | 23° / 73°F | 92 mm | 8 | 27° / 81°F |
| August | 79 | 25° / 77°F | 23° / 73°F | 77 mm | 10 | 26° / 79°F |
| September | 83 | 26° / 79°F | 23° / 73°F | 57 mm | 10 | 27° / 81°F |
| October | 78 | 26° / 79°F | 24° / 75°F | 84 mm | 10 | 27° / 81°F |
| November | 71 | 27° / 81°F | 25° / 77°F | 123 mm | 11 | 27° / 81°F |
| December | 76 | 27° / 81°F | 26° / 79°F | 97 mm | 12 | 28° / 82°F |
Sea temperature in Ilhéus by month
The sea off Ilhéus is warmest in March at around 30°C / 86°F, and coolest in August at 26°C / 79°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
Head-to-head
How Ilhéus compares month by month: Ilhéus vs Salvador · Ilhéus vs Vitória da Conquista · Ilhéus vs Porto Seguro · all comparisons
Ilhéus: questions and answers
What kind of destination is Ilhéus?
Ilhéus is a beach resort in Brazil with a tropical monsoon climate — the sea reaches 30°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Ilhéus get a year?
Ilhéus gets about 2,484 hours of sunshine a year, at its best around September.
When is the best time to visit Ilhéus?
The sunniest time to visit Ilhéus is September, when the Sunshine Score peaks at 83/100 (with August and October close behind). Expect daytime highs around 26°C / 79°F.
What is the least sunny month in Ilhéus?
March is the least sunny month in Ilhéus, scoring 70/100 with about 126 mm of rain.
What is the sea temperature in Ilhéus?
The sea in Ilhéus ranges from about 26°C (August) to 30°C (March). Month-by-month sea temperatures are on this page.
How strong is the sun in Ilhéus?
The typical midday UV index in Ilhéus peaks around 13 (extreme) in January, easing to about 8 (very high) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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