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 snowfall in September
- Average snowfall 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
As August transitions into September, Amboy sees a gentle drop in the average high-temperature, transitioning from a very hot 97.2°F (36.2°C) to a hot 90.3°F (32.4°C). Throughout the nights in September, Amboy experiences an average low-temperature of 72.3°F (22.4°C).Humidity
In September, the average relative humidity is 25%.Rainfall
In Amboy, in September, it is raining for 4.1 days, with typically 0.28" (7mm) of accumulated precipitation. In Amboy, California, during the entire year, the rain falls for 42.3 days and collects up to 4.45" (113mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:27 pm PDT.
Sunshine
In Amboy, the average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 6 transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete 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
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Amboy have in September?
When are sunrise and sunset in September in Amboy?
How many hours of sunshine does Amboy have in September?
What is the UV index reading in September in Amboy?
Average temperature in September
Amboy, CA
- Average high temperature in September: 90.3°F
The warmest month (with the highest average high temperature) is July (98.1°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in September: 72.3°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).
Average pressure in September
Amboy, CA
- Average pressure in September: 29.83"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in September
Amboy, CA
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest months (with the lowest average wind speed) are August and September (6.2mph).
Average humidity in September
Amboy, CA
- Average humidity in September: 25%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Amboy, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Amboy, CA
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is July (6.9 days).
The month with the least rainy days is June (1.1 days).
Average snowfall in September
Amboy, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Amboy, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Amboy, 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 2min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Amboy, CA
- Average sunshine days in September: 24.3 days
The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (20.4 days).
Average UV index in September
Amboy, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in September
Amboy, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in September
Amboy, 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).
Amboy, California, USA
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