September weather forecastBayo Vista, CA
September
Weather in September
September, the first month of the autumn in Bayo Vista, is also a moderately hot month, with an average temperature ranging between max 80.1°F (26.7°C) and min 56.3°F (13.5°C).Temperature
Bayo Vista's temperatures tend to hit their maximum during July and September, with an average high-temperature of 80.1°F (26.7°C).Humidity
The months with the lowest humidity in Bayo Vista are September and October, with an average relative humidity of 60%.Rainfall
In Bayo Vista, in September, it is raining for 2.1 days, with typically 0.08" (2mm) of accumulated precipitation. In Bayo Vista, during the entire year, the rain falls for 56.9 days and collects up to 4.88" (124mm) of precipitation.Ocean temperature
The month with the warmest seawater in Bayo Vista is September, with an average ocean temperature of 57°F (13.9°C).Note: Dipping into 57°F (13.9°C) below 50°F (10°C) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 55.4°F (13°C) feels cold to the bone.
Daylight
In Bayo Vista, California, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
In Bayo Vista, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bayo Vista, CA
- Average high temperature in September: 80.1°F
The warmest months (with the highest average high temperature) are July and September (80.1°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is January (43°F).
Average pressure in September
Bayo Vista, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Bayo Vista, CA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is May (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).
Average humidity in September
Bayo Vista, CA
- Average humidity in September: 60%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (60%).
Average rainfall in September
Bayo Vista, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (1.14").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Bayo Vista, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.9 days).
Average sea temperature in September
Bayo Vista, CA
- Average sea temperature in September: 57°F
The best month for swimming (with the highest average sea temperature) is September (57°F).
The coldest month (with the lowest average sea temperature) is April (52.6°F).
Average daylight in September /
Average sunshine in September
Bayo Vista, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Bayo Vista, CA
- Average sunshine days in September: 26 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is March (18.8 days).
Average UV index in September
Bayo Vista, CA
- Average UV index in September: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Bayo Vista, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Bayo Vista, 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).
