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Castanhal Weather in December
December in Castanhal brings very high temperatures around 34°C (93°F) during the day, dropping to 24°C (75°F) at night, with quite a bit of rainfall expected, averaging around 116 mm (4.6 in) for the month.
Rainfall in Castanhal in December
Rain is expected on roughly 27 days, totalling around 116 mm (4.6 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Castanhal in December
Daytime temperatures in Castanhal reach 34°C (93°F) in December, dropping to 24°C (75°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Castanhal in December
The area enjoys a balanced 157 hours of sunlight, ensuring it's neither too overcast nor too sunny.December in Castanhal has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Castanhal Temperature in December
Min Temperature
24°C (75°F)
Max Temperature
34°C (93°F)
Chance of Rain
90%
Precipitation
116 mm (4.6 in)
Rainy days
27 days
Humidity
83% *
Sunshine
157 hours *
Percentage Sunshine
*
* Data from: Belém, Brazil (62 KM, 39 Miles).
Castanhal Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castanhal - and find the best time to visit.
Best Places in Brazil in December
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Castanhal in December
Hot weather in December means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Castanhal in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Castanhal 3-Day Forecast
More climate data for Castanhal
Temperature Rainfall Sunshine Humidity
See the full Castanhal climate overview or explore weather in Brazil.
Popular in December
Where to go in December - average daytime high across popular destinations.
Fortaleza
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