21.09
mon
mon
Day
95°F
S 5 mph
Precip.
7%
7%
Night
77°F
SW 6 mph
Precip.
10%
10%
22.09
tue
tue
Day
95°F
S 6 mph
Precip.
1%
1%
Night
77°F
SW 5 mph
Precip.
10%
10%
23.09
wed
wed
Day
95°F
S 8 mph
Precip.
1%
1%
Night
77°F
SW 5 mph
Precip.
20%
20%
24.09
thu
thu
Day
95°F
S 9 mph
Precip.
1%
1%
Night
77°F
SW 5 mph
Precip.
9%
9%
25.09
fri
fri
Day
95°F
S 8 mph
Precip.
1%
1%
Night
77°F
SW 5 mph
Precip.
14%
14%
26.09
sat
sat
Day
95°F
S 8 mph
Precip.
1%
1%
Night
79°F
SW 6 mph
Precip.
8%
8%
27.09
sun
sun
Day
95°F
S 8 mph
Precip.
1%
1%
Night
77°F
SW 4 mph
Precip.
7%
7%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 84.8°F. The highest and lowest sea temperatures during the month were 85.5°F and 84.4°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 84.0°F. The highest and lowest sea temperatures during the month were 85.1°F and 83.3°F.
Air temperature in Belem, °F
Precipitation total in Belem, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Belem
Belem on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Belem
Local time: 22:33
September 22, tuesday
0000
77°F
SW
6 mph
6 mph
0300
75°F
SW
3 mph
3 mph
0600
73°F
SW
3 mph
3 mph
0900
86°F
SW
6 mph
6 mph
1200
95°F
S
6 mph
6 mph
1500
90°F
S
10 mph
10 mph
1800
82°F
S
9 mph
9 mph
2100
81°F
SW
8 mph
8 mph
