Weather in San Juan in Autumn
| September | October | November | ||||
| Average day temperature: | 87.1°F | 86.3°F | 84.1°F | |||
| Average night temperature: | 79.2°F | 78.6°F | 77.2°F | |||
| Sea water temperature: | 84.8°F | 84.9°F | 83.8°F | |||
| Number of sunny days: | 7 days | 9 days | 5 days | |||
| Day length: | 12.0 - 12.5 h. | 11.5 - 12.0 h. | 11.1 - 11.5 h. | |||
| Number of rainy days: | 4 days | 5 days | 4 days | |||
| Precipitation totals: | 3.1 in. | 2.4 in. | 2.8 in. | |||
current
weather
weather
| San Juan |
monthly
weather
weather
| San Juan |
sea water
temperature
temperature
| San Juan |
14 days
forecast
forecast
| San Juan |
Day & Night air temperature, °F
September
October
November
0
14
28
42
56
70
84
98
112
83.2
85.3
86.3
77.3
78.5
79.3
| Day temperature | Night temperature |
Sea water temperature, °F
September
October
November
0
14
28
42
56
70
84
98
112
83.8
84.9
84.8
Precipitation total, in.
September
October
November
0.0
0.7
1.3
2.0
2.6
3.3
3.9
4.6
5.2
2.9
2.8
3.8
Sunny, partly cloudy and cloudy days
September
October
November
0
5
10
15
20
25
30
35
9
9
9
17
16
17
4
5
4
| Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
| San Juan |
weather in
spring
spring
| San Juan |
weather in
summer
summer
| San Juan |
weather in
autumn
autumn
| San Juan |
Wind speed, mph
September
October
November
0.0
1.6
3.3
4.9
6.6
8.2
9.8
11.5
13.1
9.2
8.3
9.6
Average sunny hours
September
October
November
0
1
2
3
4
5
6
7
6.2
6.2
6.4
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in San Juan
San Juan on a weather map
Leaflet | Tiles © Esri
Places in Puerto Rico:
Name
°F
24 Hours Forecast
San Juan
Local time: 22:12
April 06, sunday
0000
77°F
W
13 mph
13 mph
0300
75°F
W
12 mph
12 mph
0600
75°F
W
11 mph
11 mph
0900
77°F
W
14 mph
14 mph
1200
81°F
W
15 mph
15 mph
1500
79°F
W
15 mph
15 mph
1800
79°F
W
13 mph
13 mph
2100
77°F
W
11 mph
11 mph
