Amazonas weather in December
December is one of the least pleasant months in Amazonas: highs of 30°C (85°F) and about 213 mm (8.4 in) of rain on average. Nights average 25°C (76°F) and cloud cover 83% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 5th warmest. Compared with November, it is cooler and wetter; January brings highs of 29°C (83°F) and 224 mm (8.8 in) of rain.
Figures are long-term averages for Manaus, the largest city in Amazonas. See below for other places.
Is December a good time to visit Amazonas?
least pleasant month Weather score 48/100.
December is one of the least pleasant months for weather in Amazonas. For better conditions, consider Jul–Sep.
Does it rain a lot in Amazonas in December?
Yes, it is one of the rainy months: about 213 mm (8.4 in) falls in an average December. It is the 5th wettest month of the year.
How warm is Amazonas in December?
Days average 30°C (85°F) and nights 25°C (76°F).
Amazonas weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (83°F) | 24°C (76°F) | 224 mm | 85% | least pleasant |
| February | 28°C (83°F) | 24°C (75°F) | 236 mm | 86% | least pleasant |
| March | 28°C (83°F) | 24°C (75°F) | 268 mm | 87% | least pleasant |
| April | 28°C (83°F) | 24°C (76°F) | 262 mm | 85% | least pleasant |
| May | 28°C (83°F) | 24°C (76°F) | 205 mm | 81% | least pleasant |
| June | 28°C (83°F) | 24°C (75°F) | 119 mm | 69% | fair |
| July | 29°C (84°F) | 24°C (75°F) | 76 mm | 59% | best |
| August | 31°C (87°F) | 25°C (76°F) | 50 mm | 60% | best |
| September | 33°C (91°F) | 25°C (78°F) | 68 mm | 72% | best |
| October | 33°C (91°F) | 26°C (78°F) | 103 mm | 80% | fair |
| November | 31°C (88°F) | 26°C (78°F) | 135 mm | 83% | fair |
| December | 30°C (85°F) | 25°C (76°F) | 213 mm | 83% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Amazonas in December
Weather can differ a lot within Amazonas: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Manaus | 30°C (85°F) | 25°C (76°F) | 213 mm | least pleasant |
| Itacoatiara | 30°C (86°F) | 24°C (76°F) | 197 mm | fair |
| Manacapuru | 29°C (85°F) | 25°C (77°F) | 242 mm | least pleasant |
| Parintins | 31°C (88°F) | 26°C (78°F) | 185 mm | fair |
| Coari | 29°C (83°F) | 24°C (76°F) | 273 mm | least pleasant |
| Tefé | 28°C (83°F) | 24°C (75°F) | 233 mm | fair |
| Tabatinga | 28°C (83°F) | 24°C (74°F) | 280 mm | least pleasant |
| Maués | 31°C (88°F) | 24°C (75°F) | 189 mm | fair |
| Manicoré | 29°C (84°F) | 23°C (74°F) | 260 mm | least pleasant |
| Humaitá | 29°C (85°F) | 23°C (74°F) | 233 mm | least pleasant |
| São Gabriel da Cachoeira | 28°C (83°F) | 23°C (74°F) | 225 mm | fair |
| Iranduba | 30°C (86°F) | 25°C (76°F) | 210 mm | least pleasant |