Weather in San Juan: September
 |
Average day temperature: | 69.8°F |
| Average night temperature: | 56.6°F | |
 |
Number of sunny days: | 26 days |
| Day length: | 11.5 - 12.4 hours | |
 |
Number of rainy days: | 0 days |
| Precipitation totals: | 0.1 in. | |
| more information | ||
14 days
forecast
forecast
| San Juan |
weather in
October
October
| San Juan |
Air temperature in September, °F
Show year:
2026
2025
2024
The highest day temperature during September of 2026 was 90°F. At the same time the lowest night temperature was 34°F. Daily and nightly averages during September were 63.1°F and 59.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in San Juan in September is 0.1 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 9.1 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 10.4.
Best time for vacation in San Juan
San Juan on a weather map
Places in Argentina:
Name
°F
24 Hours Forecast
San Juan
Local time: 08:10
October 06, tuesday
0900
64°F
NW
5 mph
5 mph
1200
72°F
NW
2 mph
2 mph
1500
81°F
W
5 mph
5 mph
1800
84°F
W
5 mph
5 mph
2100
77°F
N
7 mph
7 mph
October 07, wednesday
0000
70°F
N
8 mph
8 mph
0300
63°F
N
21 mph
21 mph
0600
61°F
N
16 mph
16 mph
