World Resorts USA San Jose Weather

San Jose weather in September

Weather in San Jose: September

Average day temperature: 81.1°F
Average night temperature: 58.9°F
Sea water temperature: 62.9°F
Number of sunny days: 25 days
Day length: 11.8 - 13.0 hours
Number of rainy days: 0 days
Precipitation totals: 0.1 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 93°F. At the same time the lowest night temperature was 54°F. Day and night temperature averages during September were 82.3°F and 59.9°F.

Sea water temperature in San Jose in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 68.5°F. The highest and lowest sea temperatures during the month were 71.1°F and 65.3°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 Jose in September is 0.0 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 4.6 mph It makes September one of the least windy months of the year.

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: 10.1.

Best time for vacation in San Jose

Sunniest months:
July 29 days
August 29 days
June 26 days
Warmest months:
July 86.2 °F
August 85.8 °F
September 81.1 °F
Warmest sea temp:
September 62.9 °F
August 62.7 °F
July 62.4 °F
Coldest months:
December 56.5 °F
January 57.7 °F
February 59.4 °F
Rainiest months:
February 3 days
January 3 days
December 3 days
Windiest months:
May 6.5 mph
April 6.4 mph
June 6.3 mph

San Jose on a weather map

San Jose
+54°F
N 8 mph
Feels like: +50°F
Precip.: 0%
Places in USA:
Name
°F
+46°F
+43°F
+73°F
+73°F
+41°F
+55°F
+73°F
+66°F
+48°F
+50°F
+55°F
+64°F
+61°F
+54°F
+32°F
24 Hours Forecast
San Jose
Local time: 07:00
November 21, thursday
0900
55°F
N
9 mph
1200
59°F
N
9 mph
1500
61°F
N
7 mph
1800
57°F
N
6 mph
2100
54°F
N
6 mph
November 22, friday
0000
52°F
N
6 mph
0300
52°F
N
6 mph
0600
50°F
N
7 mph
Units of measurement: °C / °F