September weather forecast
Oceano Beach, CA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Oceano Beach, California, with an average temperature varying between 59.9°F (15.5°C) and 79.5°F (26.4°C).

Temperature

September, marked by an average high-temperature of 79.5°F (26.4°C) and a low-temperature of 59.9°F (15.5°C), is the warmest month.

Humidity

In Oceano Beach, the average relative humidity in September is 59%.

Rainfall

In Oceano Beach, during September, the rain falls for 1.8 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, in Oceano Beach, there are 47.6 rainfall days, and 6.93" (176mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Oceano Beach is 12h and 23min.
On the first day of September, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:47 pm PDT.

Sunshine

In September, the average sunshine is 11.3h.

UV index

In Oceano Beach, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What are the warmest months in Oceano Beach?

The month of September, characterized by an average high of 79.5°F (26.4°C) and a low of 59.9°F (15.5°C), is recognized as the warmest.

What is the temperature in September in Oceano Beach?

The high-temperature in Oceano Beach, California, during September is 79.5°F (26.4°C) and the low-temperature is 59.9°F (15.5°C).

What is the average humidity in September in Oceano Beach?

In Oceano Beach, California, the average relative humidity in September is 59%.

How many days does it rain in September in Oceano Beach?

In Oceano Beach, in September, during 1.8 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

What is the average length of the day in September in Oceano Beach?

The average day length in September is 12h and 23min.

When are sunrise and sunset in September in Oceano Beach?

On the first day of September in Oceano Beach, California, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:47 pm PDT.

How long on average sun shines in September in Oceano Beach?

In September, the average sunshine duration in Oceano Beach, California, is 11.3h.

How high is the UV index in September in Oceano Beach?

In September, the average daily maximum UV index in Oceano Beach is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Oceano Beach, CA

Average temperature in September - Oceano Beach, CA
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in September
Oceano Beach, CA

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

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Average wind speed in September
Oceano Beach, CA

Average wind speed in September - Oceano Beach, CA
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Oceano Beach, CA

Average humidity in September - Oceano Beach, CA
  • Average humidity in September: 59%

The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).

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Average rainfall in September
Oceano Beach, CA

Average rainfall in September - Oceano Beach, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in September
Oceano Beach, CA

Average rainfall days in September - Oceano Beach, CA
  • Average rainfall days in September: 1.8 days

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in September /
Average sunshine in September
Oceano Beach, CA

Average daylight in September / Average sunshine in September - Oceano Beach, 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 months with the least sunshine are February and December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Oceano Beach, CA

Average sunshine days in September - Oceano Beach, CA
  • Average sunshine days in September: 28.2 days

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).

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Average UV index in September
Oceano Beach, CA

Average UV index in September - Oceano Beach, CA
  • Average UV index in September: 5

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

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Average cloud cover in September
Oceano Beach, CA

Average cloud cover in September - Oceano Beach, CA
  • Average cloud cover in September: 7

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

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Average visibility in September
Oceano Beach, CA

Average visibility in September - Oceano Beach, 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).

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Oceano Beach, California, USA

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