Avalon
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Avalon, CA

The first month of the autumn, September, is still a warm month in Avalon, California, with average temperature varying between 75°F (23.9°C) and 63.1°F (17.3°C).

Temperature

In Avalon, the average high-temperature is essentially the same as in August - a still moderately hot 75°F (23.9°C). In Avalon, the average low-temperature is 63.1°F (17.3°C).

Rainfall

In Avalon, California, 0.3" (7.1mm) of precipitation is typically accumulated. During the entire year, Avalon aggregates up to 11.9" (301.7mm) of precipitation.

Ocean temperature

In Avalon, in September, the average water temperature is 66.9°F (19.4°C).
Note: For most, swimming in 66.9°F (19.4°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in September is 12.4h.

What is the temperature in September in Avalon?

In Avalon, California, in September, the average high-temperature is 75°F (23.9°C), and the average low-temperature is 63.1°F (17.3°C).

How much does it rain in Avalon in September?

Throughout September, in Avalon, 0.3" (7.1mm) of precipitation is accumulated.

What is the ocean temperature in September in Avalon?

In Avalon, the average seawater temperature in September is 66.9°F (19.4°C). For most, swimming in 66.9°F (19.4°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in September in Avalon?

The average length of the day in September in Avalon, California, is 12.4h.
Average temperature in September - Avalon, CA
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is February (64.2°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is August (64.1°F).
Coldest months (with the lowest average low temperature) are January and December (49.3°F).

Average rainfall in September - Avalon, CA
  • Average rainfall in September: 0.3"

The wettest month (with the highest rainfall) is January (2.8").
Driest months (with the lowest rainfall) are June and July (0").

Average sea temperature in September - Avalon, CA
  • Average sea temperature in September: 66.9°F

The best month for swimming (with the highest average sea temperature) is August (67.7°F).
Coldest months (with the lowest average sea temperature) are January and February (58.7°F).

Average daylight in September - Avalon, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).