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
Newark's average high-temperature in September sits at a still warm 79.2°F (26.2°C), showing little difference from the previous month. Nightly average temperatures in September reveal a significant dip from daytime highs in Newark, registering a consistent a moderate 56.3°F (13.5°C).Humidity
The months with the lowest humidity in Newark, California, are July and September, with an average relative humidity of 61%.Rainfall
Months with rainfall in Newark are January through June, September through December. September is the first month it rains in Newark. Throughout September, in the average 1.5 rainfall days, it receives 0.04" (1mm) of precipitation. Throughout the year, there are 43.5 rainfall days, and 2.36" (60mm) of precipitation is accumulated.Daylight
The average length of the day in September in Newark is 12h and 25min.On the first day of September, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine in Newark is 11.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 in September translates into these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the average September temperature in Newark?
What are the least humid months in Newark?
What is the average humidity in September in Newark?
When does it start to rain in Newark?
What is the average length of the day in September in Newark?
What time are sunrise and sunset in September in Newark?
How long on average sun shines in September in Newark?
What is the UV index intensity in September in Newark?
Average temperature in September
Newark, CA
- Average high temperature in September: 79.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is August (56.8°F).
The coldest months (with the lowest average low temperature) are January, February and December (43.7°F).
Average pressure in September
Newark, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Newark, CA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is May (6.2mph).
The calmest months (with the lowest average wind speed) are October and November (4.6mph).
Average humidity in September
Newark, CA
- Average humidity in September: 61%
The month with the highest relative humidity is March (72%).
The months with the lowest relative humidity are July and September (61%).
Average rainfall in September
Newark, CA
- Average rainfall in September: 0.04"
The wettest months (with the highest rainfall) are February and March (0.47").
The driest months (with the least rainfall) are July and August (0").
Average rainfall days in September
Newark, CA
- Average rainfall days in September: 1.5 days
The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is July (0.3 days).
Average daylight in September /
Average sunshine in September
Newark, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Newark, CA
- Average sunshine days in September: 28.1 days
The month with the most sunshine days is July (30.5 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in September
Newark, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Newark, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Newark, 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).
Newark, California, USA
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