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 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
Cypress's weather in September indicates an average high-temperature of a still warm 80.1°F (26.7°C), nearly consistent with the 81°F (27.2°C) of August. Cypress throughout September, experiences an average nighttime temperature of 64.8°F (18.2°C).Humidity
The average relative humidity in September is 61%.Rainfall
In Cypress, in September, during 1.2 rainfall days, 0.04" (1mm) of precipitation is typically accumulated. In Cypress, during the entire year, the rain falls for 33.7 days and collects up to 2.32" (59mm) of precipitation.Daylight
In Cypress, California, 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 7:17 pm. On the last day of September, in Cypress, sunrise is at 6:46 am and sunset at 6:37 pm PDT.
Sunshine
The average sunshine in September in Cypress is 10.6h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Cypress. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during September leads to these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Cypress in September?
What is the average humidity in September in Cypress?
How many days does it rain in September in Cypress?
How many hours of daylight does Cypress have in September?
When is the sunrise / sunset in September in Cypress?
How long on average sun shines in September in Cypress?
What is the month with the highest UV index in Cypress?
How high is the UV index in September in Cypress?
Average temperature in September
Cypress, CA
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in September: 64.8°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (51.6°F).
Average pressure in September
Cypress, 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
Cypress, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are September and October (5mph).
Average humidity in September
Cypress, 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 (54%).
Average rainfall in September
Cypress, CA
- Average rainfall in September: 0.04"
The wettest month (with the highest rainfall) is December (0.59").
The driest month (with the least rainfall) is June (0").
Average rainfall days in September
Cypress, CA
- Average rainfall days in September: 1.2 days
The month with the highest number of rainy days is March (5.6 days).
The month with the least rainy days is June (0.6 days).
Average daylight in September /
Average sunshine in September
Cypress, 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: 9h and 54min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Cypress, CA
- Average sunshine days in September: 26.9 days
The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (23 days).
Average UV index in September
Cypress, 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 February, November and December (UV index 4).
Average cloud cover in September
Cypress, CA
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Cypress, 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).
Cypress, California, USA
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