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.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our Castanhal's climate page.

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).

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.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our Castanhal's climate page.

More climate data for Castanhal

Temperature Rainfall Sunshine Humidity

See the full Castanhal climate overview or explore weather in Brazil.