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
The warmest temperatures occur during September, when averages reach a peak of 79.5°F (26.4°C) and a low of 59.9°F (15.5°C).Humidity
In Pismo Beach, the average relative humidity in September is 59%.Rainfall
In Pismo Beach, California, during September, the rain falls for 1.8 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, in Pismo Beach, there are 47.6 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Ocean temperature
In Pismo Beach, in September, the average water temperature is 58.3°F (14.6°C).Note: Taking a dip in 58.3°F (14.6°C) can be perilous. Submersion in temperatures under 50°F (10°C) triggers severe cold shock accompanied by hyperventilation.
Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:47 pm PDT.
Sunshine
The average sunshine in September is 11.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What part of the year is the hottest in Pismo Beach?
What are September temperatures in Pismo Beach?
What is the average humidity in September in Pismo Beach?
How much does it rain in Pismo Beach in September?
What is the water temperature in September in Pismo Beach?
What is the average length of the day in September in Pismo Beach?
What time are sunrise and sunset in September in Pismo Beach?
How many hours of sunshine does Pismo Beach have in September?
What is the UV index reading in September in Pismo Beach?
Average temperature in September
Pismo Beach, CA
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°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 (46°F).
Average pressure in September
Pismo Beach, 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, August and September (29.91"Hg).
Average wind speed in September
Pismo Beach, CA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Pismo Beach, CA
- Average humidity in September: 59%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in September
Pismo Beach, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in September
Pismo Beach, CA
- Average rainfall days in September: 1.8 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in September
Pismo Beach, 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
Pismo Beach, 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 months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in September
Pismo Beach, CA
- Average sunshine days in September: 28.2 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in September
Pismo Beach, CA
- Average UV index in September: 5
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Pismo Beach, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Pismo Beach, 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).
Pismo Beach, California, USA
Weather forecast for your location
2. Allow the app to use your location
