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
As September unfolds in Newport Beach, the average high-temperature reaches a still moderately hot 76.1°F (24.5°C), hinting at a slight fluctuation from the previous month. An average low-temperature of 64.2°F (17.9°C) is noted during the nights in September in Newport Beach.Humidity
In Newport Beach, the average relative humidity in September is 68%.Rainfall
In Newport Beach, during September, the rain falls for 3.3 days and regularly aggregates up to 0.16" (4mm) of precipitation. In Newport Beach, during the entire year, the rain falls for 50.7 days and collects up to 3.74" (95mm) of precipitation.Ocean temperature
In September, the average ocean temperature in Newport Beach is 66.7°F (19.3°C).Note: Swimming in water with a temperature of 66.7°F (19.3°C) is not a pleasurable experience for the majority. As the temperature falls below 69.8°F (21°C), it becomes increasingly hard to control one's breathing.
Daylight
In Newport Beach, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:16 pm. On the last day of September, in Newport Beach, sunrise is at 6:45 am and sunset at 6:36 pm PDT.
Sunshine
The average sunshine in September is 10.5h.UV index
July through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What is the temperature in September in Newport Beach?
What is the average humidity in September in Newport Beach?
How many days does it rain in September in Newport Beach?
What is the ocean temperature in September in Newport Beach?
How many hours of daylight does Newport Beach have in September?
When are sunrise and sunset in September in Newport Beach?
How long on average sun shines in September in Newport Beach?
What are the months with the highest UV index in Newport Beach?
How high is the UV index in September in Newport Beach?
Average temperature in September
Newport Beach, CA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (52.3°F).
Average pressure in September
Newport Beach, CA
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in September
Newport Beach, CA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).
Average humidity in September
Newport Beach, CA
- Average humidity in September: 68%
The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).
Average rainfall in September
Newport Beach, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is December (0.79").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Newport Beach, CA
- Average rainfall days in September: 3.3 days
The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is June (1.6 days).
Average sea temperature in September
Newport Beach, CA
- Average sea temperature in September: 66.8°F
The best months for swimming (with the highest average sea temperature) are July and August (67.7°F).
The coldest month (with the lowest average sea temperature) is January (58.5°F).
Average daylight in September /
Average sunshine in September
Newport Beach, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 3min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Newport Beach, CA
- Average sunshine days in September: 24.5 days
The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.5 days).
Average UV index in September
Newport Beach, CA
- Average UV index in September: 6
The months with the highest UV index are July, August and September (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
Newport Beach, CA
- Average cloud cover in September: 11
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Newport 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).
Newport Beach, California, USA
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