September weather forecastMarina del Rey, CA
September
Weather in September
September, the first month of the autumn in Marina del Rey, is still a warm month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 63.7°F (17.6°C).Temperature
The shift into September uncovers an average high-temperature of a still warm 80.2°F (26.8°C), subtly different from the previous month. Throughout September, an average low-temperature of 63.7°F (17.6°C) is expected in Marina del Rey.Humidity
In September, the average relative humidity in Marina del Rey, California, is 61%.Rainfall
In Marina del Rey, during September, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, there are 48.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.Ocean temperature
In Marina del Rey, in September, the average water temperature is 66.7°F (19.3°C).Note: Most people do not find swimming enjoyable in water of 66.7°F (19.3°C). The task of controlling breathing becomes tougher as the temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In September, the average length of the day is 12h and 22min.On the first day of September in Marina del Rey, California, sunrise is at 6:28 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:38 pm PDT.
Sunshine
The average sunshine in September is 10.5h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Marina del Rey. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Marina del Rey, CA
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in September
Marina del Rey, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in September
Marina del Rey, CA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in September
Marina del Rey, CA
- Average humidity in September: 61%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (52%).
Average rainfall in September
Marina del Rey, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is January (1.54").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in September
Marina del Rey, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.8 days).
Average sea temperature in September
Marina del Rey, CA
- Average sea temperature in September: 66.7°F
The best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).
Average daylight in September /
Average sunshine in September
Marina del Rey, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 10h and 30min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days in September
Marina del Rey, CA
- Average sunshine days in September: 26.3 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in September
Marina del Rey, CA
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in September
Marina del Rey, CA
- Average cloud cover in September: 12
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Marina del Rey, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
