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

September weather forecast and climate
Eureka, CA

The Lost Fisherman
The Lost Fisherman's Memorial in the scenic surroundings of Eureka, California
September, the first month of the autumn, in Eureka, is still a comfortable month, with temperature in the range of an average high of 63.7°F (17.6°C) and an average low of 50.4°F (10.2°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still comfortable 63.7°F (17.6°C). In Eureka, in September, the average low-temperature is 50.4°F (10.2°C).

Rainfall

In Eureka, during September, the rain falls for 4.4 days and regularly aggregates up to 0.6" (15mm) of precipitation. In Eureka, during the entire year, the rain falls for 127.5 days and collects up to 40.3" (1024.4mm) of precipitation.

Daylight

In September, the average length of the day in Eureka, California, is 12.4h.

Sunshine

In Eureka, California, the average sunshine in September is 7.3h.

What is the temperature in September in Eureka?

In September, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 50.4°F (10.2°C).

How much does it rain in Eureka in September?

In Eureka, during September, the rain falls for 4.4 days and regularly aggregates up to 0.6" (15mm) of precipitation.

How many hours of daylight does Eureka have in September?

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

How long on average sun shines in September in Eureka?

The average sunshine in September in Eureka, California, is 7.3h.
Average temperature in September - Eureka, CA
  • Average high temperature in September: 63.7°F

The warmest month (with the highest average high temperature) is August (64.3°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in September: 50.4°F

The month with the highest average low temperature is August (52.8°F).
The coldest month (with the lowest average low temperature) is December (40.6°F).

Average rainfall in September - Eureka, CA
  • Average rainfall in September: 0.6"

The wettest month (with the highest rainfall) is December (8.1").
The driest month (with the lowest rainfall) is July (0.2").

Average rainfall days in September - Eureka, CA
  • Average rainfall days in September: 4.4 days

The month with the highest number of rainy days is December (17.5 days).
The month with the lowest number of rainy days is July (2.7 days).

Average daylight in September / Average sunshine in September - Eureka, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 7.3h

The month with most sunshine is June (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 4.1h).