Mato Grosso weather in December
December is one of the least pleasant months in Mato Grosso: highs of 31°C (89°F) and about 183 mm (7.2 in) of rain on average. Nights average 23°C (73°F) and cloud cover 82% (NASA POWER, 2001–2025 averages). It is the 4th wettest month of the year and the 6th warmest. Compared with November, it is cooler and about as wet; January brings highs of 31°C (87°F) and 218 mm (8.6 in) of rain.
Figures are long-term averages for Cuiabá, the largest city in Mato Grosso. See below for other places.
Is December a good time to visit Mato Grosso?
least pleasant month Weather score 52/100.
December is one of the least pleasant months for weather in Mato Grosso. For better conditions, consider May–Jul.
Does it rain a lot in Mato Grosso in December?
Yes, it is one of the rainy months: about 183 mm (7.2 in) falls in an average December. It is the 4th wettest month of the year.
How warm is Mato Grosso in December?
Days average 31°C (89°F) and nights 23°C (73°F).
Mato Grosso weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 31°C (87°F) | 23°C (73°F) | 218 mm | 83% | least pleasant |
| February | 30°C (87°F) | 22°C (72°F) | 223 mm | 83% | least pleasant |
| March | 31°C (87°F) | 22°C (72°F) | 187 mm | 77% | least pleasant |
| April | 30°C (87°F) | 21°C (70°F) | 102 mm | 62% | fair |
| May | 30°C (85°F) | 19°C (66°F) | 48 mm | 50% | best |
| June | 31°C (87°F) | 18°C (64°F) | 9 mm | 31% | best |
| July | 32°C (90°F) | 17°C (63°F) | 11 mm | 25% | best |
| August | 35°C (96°F) | 19°C (67°F) | 15 mm | 28% | fair |
| September | 37°C (99°F) | 22°C (72°F) | 34 mm | 50% | fair |
| October | 36°C (96°F) | 23°C (74°F) | 115 mm | 73% | least pleasant |
| November | 33°C (92°F) | 23°C (73°F) | 169 mm | 77% | least pleasant |
| December | 31°C (89°F) | 23°C (73°F) | 183 mm | 82% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Mato Grosso in December
Weather can differ a lot within Mato Grosso: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Cuiabá | 31°C (89°F) | 23°C (73°F) | 183 mm | least pleasant |
| Várzea Grande | 31°C (89°F) | 23°C (73°F) | 183 mm | least pleasant |
| Rondonópolis | 31°C (88°F) | 22°C (72°F) | 240 mm | least pleasant |
| Sinop | 28°C (83°F) | 22°C (71°F) | 262 mm | least pleasant |
| Sorriso | 29°C (83°F) | 22°C (71°F) | 243 mm | least pleasant |
| Tangará da Serra | 30°C (86°F) | 22°C (72°F) | 213 mm | least pleasant |
| Lucas do Rio Verde | 29°C (83°F) | 22°C (71°F) | 235 mm | least pleasant |
| Cáceres | 32°C (89°F) | 23°C (74°F) | 163 mm | least pleasant |
| Barra do Garças | 30°C (87°F) | 21°C (70°F) | 234 mm | least pleasant |
| Nova Mutum | 29°C (83°F) | 22°C (71°F) | 241 mm | least pleasant |
| Pontes e Lacerda | 31°C (87°F) | 22°C (72°F) | 174 mm | least pleasant |
| Campo Verde | 28°C (83°F) | 20°C (69°F) | 228 mm | least pleasant |