September weather forecast
Java, CA

Share

Weather in September

September, the first month of the autumn in Java, is still a hot month, with an average temperature fluctuating between 94.8°F (34.9°C) and 77.4°F (25.2°C).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's fiery hot 101.7°F (38.7°C) to a hot 94.8°F (34.9°C). In the month of September, Java experiences an average low-temperature of 77.4°F (25.2°C).

Humidity

The average relative humidity in September is 24%.

Rainfall

In Java, in September, it is raining for 4.3 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, in Java, there are 41.8 rainfall days, and 4.21" (107mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:12 am and sunset at 7:04 pm. On the last day of September, sunrise is at 6:33 am and sunset at 6:23 pm PDT.

Sunshine

In September, the average sunshine is 10.1h.

UV index

In September, the average daily maximum UV index in Java, California, is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
[Resources]

Frequently asked questions

How hot does it get in Java in September?

During September, Java experiences an average high-temperature of 94.8°F (34.9°C) and a low-temperature of 77.4°F (25.2°C).

What is the average humidity in September in Java?

The average relative humidity in September in Java is 24%.

How many days does it rain in September in Java?

In Java, California, during September, the rain falls for 4.3 days and regularly aggregates up to 0.43" (11mm) of precipitation.

How many hours of daylight does Java have in September?

In Java, California, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Java?

In September, on the first day of the month, sunrise is at 6:12 am and sunset at 7:04 pm. On the last day of the month, in Java, California, sunrise is at 6:33 am and sunset at 6:23 pm PDT.

How long on average sun shines in September in Java?

In Java, California, the average sunshine duration in September is 10.1h.

What is the UV index intensity in September in Java?

In Java, California, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Java, CA

Average temperature in September - Java, CA
  • Average high temperature in September: 94.8°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (59°F).

  • Average low temperature in September: 77.4°F

The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).

[Resources]

Average pressure in September
Java, CA

Average pressure in September - Java, CA
  • Average pressure in September: 29.82"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).

[Resources]

Average wind speed in September
Java, CA

Average wind speed in September - Java, CA
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

[Resources]

Average humidity in September
Java, CA

Average humidity in September - Java, CA
  • Average humidity in September: 24%

The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (14%).

[Resources]

Average rainfall in September
Java, CA

Average rainfall in September - Java, CA
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is July (0.67").
The driest month (with the least rainfall) is June (0.04").

[Resources]

Average rainfall days in September
Java, CA

Average rainfall days in September - Java, CA
  • Average rainfall days in September: 4.3 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.1 days).

[Resources]

Average daylight in September /
Average sunshine in September
Java, CA

Average daylight in September / Average sunshine in September - Java, 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 54min).

  • Average sunshine in September: 10h and 1min

The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

[Resources]

Average sunshine days in September
Java, CA

Average sunshine days in September - Java, CA
  • Average sunshine days in September: 22.8 days

The month with the most sunshine days is November (28.1 days).
The month with the least sunshine days is July (17.9 days).

[Resources]

Average UV index in September
Java, CA

Average UV index in September - Java, CA
  • Average UV index in September: 7

The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

[Resources]

Average cloud cover in September
Java, CA

Average cloud cover in September - Java, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

[Resources]

Average visibility in September
Java, CA

Average visibility in September - Java, 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).

[Resources]

Java, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location