Manaus weather by month & the best time to visit
Brazil · major city break · tropical monsoon climate

The best time to visit Manaus is August — its sunniest month (Sunshine Score 81/100), with September and July close behind. Manaus averages about 1,928 hours of sunshine a year. Daytime highs around 30°C / 86°F and roughly 50 mm of rain in August.
When is the best time to visit Manaus?
For sunshine, the best time to visit Manaus is August, then September and July. The dullest month is January (62/100, 224 mm of rain). The full month-by-month picture is in the table below.
How sunny is Manaus?
Manaus gets a moderate 1,928 hours of sunshine a year. August (81/100) is noticeably better than January (62). It ranks #127 of 131 destinations in Brazil for annual sunshine, below the national median of 2,486 hours. The year's 1,959 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 |
|---|---|---|---|---|---|
| January | 62 | 28° / 82°F | 24° / 75°F | 224 mm | 9 |
| February | 62 | 28° / 82°F | 24° / 75°F | 236 mm | 9 |
| March | 62 | 28° / 82°F | 24° / 75°F | 268 mm | 9 |
| April | 62 | 28° / 82°F | 24° / 75°F | 262 mm | 9 |
| May | 62 | 28° / 82°F | 24° / 75°F | 205 mm | 8 |
| June | 68 | 28° / 82°F | 24° / 75°F | 119 mm | 8 |
| July | 76 | 29° / 84°F | 24° / 75°F | 76 mm | 9 |
| August | 81 | 30° / 86°F | 24° / 75°F | 50 mm | 9 |
| September | 77 | 32° / 90°F | 25° / 77°F | 68 mm | 9 |
| October | 71 | 32° / 90°F | 26° / 79°F | 103 mm | 9 |
| November | 65 | 31° / 88°F | 25° / 77°F | 135 mm | 8 |
| December | 62 | 29° / 84°F | 25° / 77°F | 213 mm | 8 |
Nearest destinations
Head-to-head
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Manaus: questions and answers
What kind of destination is Manaus?
Manaus is a major city break in Brazil with a tropical monsoon climate.
How many hours of sunshine does Manaus get a year?
Manaus gets about 1,928 hours of sunshine a year, at its best around August.
When is the best time to visit Manaus?
The sunniest time to visit Manaus is August, when the Sunshine Score peaks at 81/100 (with September and July close behind). Expect daytime highs around 30°C / 86°F.
What is the least sunny month in Manaus?
January is the least sunny month in Manaus, scoring 62/100 with about 224 mm of rain.
How strong is the sun in Manaus?
The typical midday UV index in Manaus peaks around 9 (very high) in January, easing to about 8 (very high) in May. Month-by-month midday UV values are in the UV column of the table on this page.
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