September weather forecast
Nipomo, CA

Share

Weather in September

September, the first month of the autumn in Nipomo, is also a moderately hot month, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 59.7°F (15.4°C).

Temperature

In Nipomo, temperatures reach their average annual highs in September, measuring 82°F (27.8°C) and a minimum average of 59.7°F (15.4°C).

Heat index

September's average heat index is estimated at 84.2°F (29°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Nipomo, the average relative humidity in September is 56%.

Rainfall

In Nipomo, California, during September, the rain falls for 1.5 days and regularly aggregates up to 0.08" (2mm) of precipitation. In Nipomo, during the entire year, the rain falls for 39.5 days and collects up to 5.51" (140mm) of precipitation.

Daylight

In September, the average length of the day in Nipomo, California, is 12h and 23min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:46 pm PDT.

Sunshine

The average sunshine in September is 11.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
[Resources]

Frequently asked questions

What is the warmest month in Nipomo?

September is the month that records the highest temperatures in Nipomo, California, with averages ranging from a high of 82°F (27.8°C) to a low of 59.7°F (15.4°C).

What is the usual temperature for Nipomo in September?

The high-temperature, in September, in Nipomo, records 82°F (27.8°C), while the low-temperature is 59.7°F (15.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is estimated at 84.2°F (29°C).

What is the average humidity in September in Nipomo?

The average relative humidity in September in Nipomo, California, is 56%.

How much does it rain in Nipomo in September?

In Nipomo, in September, it is raining for 1.5 days, with typically 0.08" (2mm) of accumulated precipitation.

How many hours of daylight does Nipomo have in September?

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

What time are sunrise and sunset in September in Nipomo?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of the month, in Nipomo, sunrise is at 6:56 am and sunset at 6:46 pm PDT.

How long on average sun shines in September in Nipomo?

The average sunshine duration in September in Nipomo is 11.3h.

What is the UV index reading in September in Nipomo?

In Nipomo, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Nipomo, CA

Average temperature in September - Nipomo, CA
  • Average high temperature in September: 82°F

The warmest month (with the highest average high temperature) is September (82°F).
The month with the lowest average high temperature is December (62.2°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is September (59.7°F).
The coldest month (with the lowest average low temperature) is February (45.1°F).

[Resources]

Average pressure in September
Nipomo, CA

Average pressure in September - Nipomo, CA
  • Average pressure in September: 29.91"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

[Resources]

Average wind speed in September
Nipomo, CA

Average wind speed in September - Nipomo, CA
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are April and May (6.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

[Resources]

Average humidity in September
Nipomo, CA

Average humidity in September - Nipomo, CA
  • Average humidity in September: 56%

The month with the highest relative humidity is March (67%).
The month with the lowest relative humidity is October (55%).

[Resources]

Average rainfall in September
Nipomo, CA

Average rainfall in September - Nipomo, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is March (1.34").
The driest month (with the least rainfall) is June (0").

[Resources]

Average rainfall days in September
Nipomo, CA

Average rainfall days in September - Nipomo, CA
  • Average rainfall days in September: 1.5 days

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (0.7 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Nipomo, 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 48min).

  • Average sunshine in September: 11h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

[Resources]

Average sunshine days in September
Nipomo, CA

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

The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is February (21.6 days).

[Resources]

Average UV index in September
Nipomo, CA

Average UV index in September - Nipomo, CA
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

[Resources]

Average cloud cover in September
Nipomo, CA

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

The months with the most cloud cover are February and March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).

[Resources]

Average visibility in September
Nipomo, CA

Average visibility in September - Nipomo, 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]

Nipomo, California, USA

Weather forecast for your location

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