September weather forecast
Ballico, CA

Share

Weather in September

The first month of the autumn, September, is also a hot month in Ballico, California, with an average temperature varying between 61.3°F (16.3°C) and 91.4°F (33°C).

Temperature

In September, the average high-temperature marginally decreases from a very hot 97.3°F (36.3°C) in August to a tropical 91.4°F (33°C). Significant variation from daytime temperatures marks September, with the month recording a nightly average of 61.3°F (16.3°C).

Humidity

In September, the average relative humidity is 38%.

Rainfall

The months with the least rainfall are June through September Rain falls for 1.1 days and accumulates 0.04" (1mm) of rain.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:46 pm PDT.

Sunshine

In September, the average sunshine is 11.5h.

UV index

In Ballico, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Deter overexposure. Protecting against the sun's effects is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

How hot does it get in September?

The high-temperature during September is 91.4°F (33°C) and the low-temperature is 61.3°F (16.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in May is computed to be 82.4°F (28°C).

What is the average humidity in September?

In September, the average relative humidity is 38%.

What is the driest month?

June through September are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 0.04" (1mm) of rain.

How much does it rain in September?

In September, the rain falls for 1.1 days. Throughout September, 0.04" (1mm) of precipitation is accumulated.

How many hours of daylight does Ballico have in September?

In Ballico, the average day length in September is 12h and 25min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm PDT.

How long on average sun shines in September?

In Ballico, the average sunshine duration in September is 11.5h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Ballico, CA

Average temperature in September - Ballico, CA
  • Average high temperature in September: 91.4°F

The warmest month (with the highest average high temperature) is July (98.6°F).
The month with the lowest average high temperature is December (56.1°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

Average pressure in September
Ballico, CA

Average pressure in September - Ballico, CA
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Ballico, CA

Average wind speed in September - Ballico, CA
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).

Average humidity in September
Ballico, CA

Average humidity in September - Ballico, CA
  • Average humidity in September: 38%

The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is July (34%).

Average rainfall in September
Ballico, CA

Average rainfall in September - Ballico, CA
  • Average rainfall in September: 0.04"

The wettest months (with the highest rainfall) are March and December (0.55").
The driest months (with the least rainfall) are June, July, August and September (0.04").

Average rainfall days in September
Ballico, CA

Average rainfall days in September - Ballico, CA
  • Average rainfall days in September: 1.1 days

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (0.5 days).

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

Average daylight in September / Average sunshine in September - Ballico, 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 3min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in September
Ballico, CA

Average sunshine days in September - Ballico, CA
  • Average sunshine days in September: 28.5 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is February (23 days).

Average UV index in September
Ballico, CA

Average UV index in September - Ballico, CA
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Ballico, CA

Average cloud cover in September - Ballico, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in September
Ballico, CA

Average visibility in September - Ballico, 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).

Ballico, California, USA

Weather forecast for your location

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