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Castanhal Weather in September
With daytime temperatures of 34°C (93°F) and nighttime lows of 23°C (73°F), September in Castanhal brings very high temperatures during the day. Some rainfall is to be expected during the month.
Rainfall in Castanhal in September
Typically, you can expect about 20 days of rain this month, with 38 mm (1.5 in) on average. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Castanhal in September
September in Castanhal sees highs of 34°C (93°F) and lows of 23°C (73°F) overnight. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights are warm at 23°C (73°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Castanhal in September
Expect sunny days throughout the month, with an estimated 239 hours of sunshine. This makes it a pleasant time to visit Castanhal.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Castanhal.
Castanhal Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
34°C (93°F)
Chance of Rain
67%
Precipitation
38 mm (1.5 in)
Rainy days
20 days
Humidity
81% *
Sunshine
239 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 September
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in September →
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 September
Hot weather in September 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. Pack a light rain jacket or compact umbrella for occasional showers. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Castanhal in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Castanhal 3-Day Forecast
More climate data for Castanhal
Temperature Rainfall Sunshine Humidity
See the full Castanhal climate overview or explore weather in Brazil.
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