09.08
tue
tue
DAY
68°F
SE 4 mph
precip
2%
2%
NIGHT
58°F
N 4 mph
precip
22%
22%
09.09
wed
wed
DAY
70°F
NW 6 mph
precip
14%
14%
NIGHT
62°F
W 4 mph
precip
25%
25%
09.10
thu
thu
DAY
70°F
N 2 mph
precip
21%
21%
NIGHT
64°F
NW 5 mph
precip
32%
32%
09.11
fri
fri
DAY
66°F
W 2 mph
precip
91%
91%
NIGHT
62°F
E 21 mph
precip
36%
36%
09.12
sat
sat
DAY
56°F
NE 8 mph
precip
38%
38%
NIGHT
56°F
N 7 mph
precip
29%
29%
09.13
sun
sun
DAY
64°F
NW 7 mph
precip
13%
13%
NIGHT
56°F
NW 11 mph
precip
21%
21%
09.14
mon
mon
DAY
58°F
W 11 mph
precip
33%
33%
NIGHT
58°F
W 7 mph
precip
66%
66%
09.15
tue
tue
DAY
66°F
E 12 mph
precip
25%
25%
NIGHT
56°F
SE 5 mph
precip
32%
32%
09.16
wed
wed
DAY
62°F
N 7 mph
precip
2%
2%
NIGHT
50°F
W 4 mph
precip
8%
8%
09.17
thu
thu
DAY
68°F
NW 8 mph
precip
1%
1%
NIGHT
54°F
W 9 mph
precip
5%
5%
09.18
fri
fri
DAY
72°F
W 5 mph
precip
9%
9%
NIGHT
62°F
W 7 mph
precip
92%
92%
09.19
sat
sat
DAY
74°F
S 4 mph
precip
33%
33%
NIGHT
68°F
SW 2 mph
precip
82%
82%
09.20
sun
sun
DAY
76°F
E 12 mph
precip
17%
17%
NIGHT
60°F
N 7 mph
precip
10%
10%
09.21
mon
mon
DAY
66°F
NW 11 mph
precip
12%
12%
NIGHT
54°F
NW 11 mph
precip
68%
68%
Sea water
temperature
temperature
| Porto Alegre |
Weather in
September
September
| Porto Alegre |
7 day weather
forecast
forecast
| Porto Alegre |
10 day weather
forecast
forecast
| Porto Alegre |
14 day weather
forecast
forecast
| Porto Alegre |
Monthly weather
averages
averages
| Porto Alegre |
Current Weather
Conditions
Conditions
| Porto Alegre |
When is the Best
Time to Visit?
Time to Visit?
| Porto Alegre |
Porto Alegre Sea Water Temperature in September, °F
The average sea surface temperature in September 2025 for Porto Alegre was 65.8°F. The maximum and minimum values were 63.8°F and 67.6°F respectively.
Porto Alegre on the Weather Map
Brazil Resorts:
NAME
F°
| Angra dos Reis |  |
+66 |
| Balneario Camboriu |  |
+62 |
| Buzios |  |
+70 |
| Florianopolis | |
+64 |
| Fortaleza | |
+84 |
| Ilha de Itamaraca |  |
+82 |
| Joao Pessoa |  |
+82 |
| Natal | |
+80 |
| Recife | |
+78 |
| Rio de Janeiro | |
+70 |
| Santos | |
+66 |
| Sao Jose de Ribamar | |
+84 |
| Sao Paulo | |
+56 |
| Sao Sebastiao | |
+62 |
| Xangri-la | |
+60 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Porto Alegre
Local time: 17:49
08 sep, tuesday
| 1800 | |
66°F | N 4 mph |
| 2100 | |
62°F | NW 5 mph |
09 sep, wednesday
| 0000 | |
58°F | N 4 mph |
| 0300 | |
56°F | N 3 mph |
| 0600 | |
56°F | W 3 mph |
| 0900 | |
62°F | NW 4 mph |
| 1200 | |
70°F | NW 6 mph |
| 1500 |  |
70°F | N 11 mph |