Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September, noted for its average high-temperature of 76.3°F (24.6°C) and an average low-temperature of 59.9°F (15.5°C), is considered the warmest month.Humidity
The months with the lowest humidity in Morro Bay are September and October, with an average relative humidity of 61%.Rainfall
In September, the rain falls for 1.6 days. Throughout September, 0.12" (3mm) of precipitation is accumulated. In Morro Bay, during the entire year, the rain falls for 53.7 days and collects up to 8.58" (218mm) of precipitation.Ocean temperature
In Morro Bay, in September, the average water temperature is 58.3°F (14.6°C).Note: Engaging in a swim in 58.3°F (14.6°C) can threaten life. Brief exposure to 55.4°F (13°C) waters is uneasy, and submersion below 50°F (10°C) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
In September, the average length of the day in Morro Bay, California, is 12h and 23min.On the first day of September in Morro Bay, sunrise is at 6:36 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:48 pm PDT.
Sunshine
In Morro Bay, the average sunshine in September is 11.3h.UV index
In Morro Bay, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What part of the year is the hottest in Morro Bay?
What is the usual temperature for Morro Bay in September?
What is the least humid month in Morro Bay?
What is the average humidity in September in Morro Bay?
How much does it rain in Morro Bay in September?
What is the ocean temperature in September in Morro Bay?
What is the average length of the day in September in Morro Bay?
When are sunrise and sunset in September in Morro Bay?
How many hours of sunshine does Morro Bay have in September?
What is the UV index reading in September in Morro Bay?
Average temperature in September
Morro Bay, CA
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is September (76.3°F).
The month with the lowest average high temperature is December (59.2°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).
Average pressure in September
Morro Bay, CA
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).
Average wind speed in September
Morro Bay, CA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).
Average humidity in September
Morro Bay, CA
- Average humidity in September: 61%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are September and October (61%).
Average rainfall in September
Morro Bay, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is January (1.81").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Morro Bay, CA
- Average rainfall days in September: 1.6 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.7 days).
Average sea temperature in September
Morro Bay, CA
- Average sea temperature in September: 58.3°F
The best months for swimming (with the highest average sea temperature) are August and October (58.6°F).
The coldest month (with the lowest average sea temperature) is April (54.3°F).
Average daylight in September /
Average sunshine in September
Morro Bay, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Morro Bay, CA
- Average sunshine days in September: 28.1 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in September
Morro Bay, CA
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in September
Morro Bay, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 7).
Average visibility in September
Morro Bay, 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).
Morro Bay, California, USA
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