Napa Valley in september: average Weather, Temperature and Climate

You want to visit Napa Valley in United States in september : check how are the weather and seasonal norms below.

Weather in Napa Valley in september 2019

The weather in Napa Valley in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.

Average weather throughout september

perfect weather

Weather at 7am
15°C

Clear/SunnyClear/Sunny
65% of time

Fog

18%

Partly Cloudy

9%

Cloudy

7%

Weather at 1pm
27°C

Clear/SunnyClear/Sunny
87% of time

Partly Cloudy

7%

Cloudy

5%

Heavy rain

2%

Weather at 7pm
28°C

Clear/SunnyClear/Sunny
91% of time

Partly Cloudy

5%

Cloudy

4%

Heavy rain

1%

Average weather 1-10 september

Weather at 7am
16°C

Clear/SunnyClear/Sunny
68% of time

Fog

14%

Partly Cloudy

10%

Cloudy

7%

Weather at 1pm
29°C

Clear/SunnyClear/Sunny
92% of time

Partly Cloudy

4%

Cloudy

3%

Heavy rain

1%

Weather at 7pm
30°C

Clear/SunnyClear/Sunny
96% of time

Partly Cloudy

3%

Cloudy

1%

Average weather 11-20 september

Weather at 7am
14°C

Clear/SunnyClear/Sunny
54% of time

Fog

25%

Partly Cloudy

10%

Cloudy

8%

Weather at 1pm
26°C

Clear/SunnyClear/Sunny
85% of time

Cloudy

9%

Partly Cloudy

3%

Heavy rain

1%

Weather at 7pm
27°C

Clear/SunnyClear/Sunny
87% of time

Cloudy

6%

Partly Cloudy

4%

Heavy rain

1%

Average weather 21-30 september

Weather at 7am
15°C

Clear/SunnyClear/Sunny
72% of time

Fog

14%

Partly Cloudy

7%

Cloudy

6%

Weather at 1pm
27°C

Clear/SunnyClear/Sunny
82% of time

Partly Cloudy

12%

Cloudy

3%

Heavy rain

2%

Weather at 7pm
28°C

Clear/SunnyClear/Sunny
90% of time

Partly Cloudy

7%

Cloudy

3%


Climate of Napa Valley in september

The climate of Napa Valley in september is perfect

The climate in september in Napa Valley is dry ; it never rains.

The climate nice in this location the month of september. The high seasonal norm is 31°C. The seasonal minimum is 19°C. Thus, the mean temperature average on this month of september in Napa Valley is 25°C. Note that seasonal normals in contrast with those observed in Napa Valley in the month of september with a maximum record of 47°C in 2017 and a minimum record of 11°C in 2017. You can expect to have about 13 days with temperatures up to 30°C, or 43 of time.

Day length in Napa Valley in september is 12:27. Sunrise is at 06:51 and sunset is at 19:18.

With a perfect weather, this month is recommended to go in that area.


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Seasonal average climate and temperature of Napa Valley in september

Check below seasonal norms These datas are compiled from the weather statements earlier years of september.

September
Outside temperature
Average temperature 25°C
Highest temperature 31°C
Lowest temperature 19°C
Highest record temperature 47°C
(2017)
Lowest record temperature 11°C
(2017)
Number of days at +30°C 13 day(s)
(43%)
Number of days at +18°C 30 day(s)
(100%)
Wind
Wind speed 14km/h
Wind temperature 19°C
Precipitation (rainfall)
Rainfall 3mm
Number of days with rainfall 1 day(s)
(2%)
Record daily rainfall 8mm
(2014)
Other climate data
Humidity 59%
Visibility 9.55km
Cloud cover 13%
Sunrise and sunset
Time of sunrise 06:51
Time of sunset 19:18
Length of day 12:27
Our opinion about the weather in september
Our opinion at whereandwhen.net perfect

How was the weather last september?

Here is the day by day recorded weather in Napa Valley in september 2018:

01-09-2018
Clear/Sunny
21°C to 31°C
02-09-2018
Clear/Sunny
22°C to 34°C
03-09-2018
Clear/Sunny
20°C to 33°C
04-09-2018
Clear/Sunny
20°C to 30°C
05-09-2018
Clear/Sunny
17°C to 28°C
06-09-2018
Clear/Sunny
20°C to 30°C
07-09-2018
Clear/Sunny
22°C to 34°C
08-09-2018
Partly Cloudy
21°C to 33°C
09-09-2018
Clear/Sunny
21°C to 33°C
10-09-2018
Clear/Sunny
21°C to 33°C
11-09-2018
Clear/Sunny
19°C to 30°C
12-09-2018
Clear/Sunny
17°C to 24°C
13-09-2018
Clear/Sunny
15°C to 24°C
14-09-2018
Clear/Sunny
17°C to 27°C
15-09-2018
Clear/Sunny
14°C to 23°C
16-09-2018
Clear/Sunny
16°C to 26°C
17-09-2018
Clear/Sunny
15°C to 25°C
18-09-2018
Clear/Sunny
16°C to 27°C
19-09-2018
Clear/Sunny
20°C to 31°C
20-09-2018
Clear/Sunny
21°C to 33°C
21-09-2018
Clear/Sunny
19°C to 31°C
22-09-2018
Clear/Sunny
19°C to 30°C
23-09-2018
Clear/Sunny
18°C to 29°C
24-09-2018
Clear/Sunny
19°C to 33°C
25-09-2018
Clear/Sunny
19°C to 34°C
26-09-2018
Clear/Sunny
21°C to 35°C
27-09-2018
Clear/Sunny
20°C to 34°C
28-09-2018
Clear/Sunny
14°C to 24°C
29-09-2018
Partly Cloudy
14°C to 21°C
30-09-2018
Clear/Sunny
17°C to 25°C

Map: other cities in California in september

Click over cities on the map for information about the weather in september.

Legend: Napa Valley perfect weather good tolerable bad very bad

Cities near Napa Valley:

Bodega Bay in septembergood weather
San Francisco in septembergood weather
Sacramento in septemberperfect weather
Moss Beach in septembergood weather
San Jose in septemberperfect weather
Fort Bragg in septembergood weather
Pacific Grove in septembergood weather
Lake Tahoe in septembergood weather
Redding in septemberperfect weather
Yosemite National Park in septembergood weather
California in september: See full list of cities

Recommended for you:


Weather data for Napa Valley in september:

Weather data for Napa Valley for september are derived from an average of the weather forecast since 2009 in Napa Valley. There is a margin of error and these forecasts are to be considered as general information only. The weather in Napa Valley can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Napa Valley.


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