September weather forecast
Encinitas, CA

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Weather in September

September, the first month of the autumn in Encinitas, is still a warm month, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 64.6°F (18.1°C).

Temperature

With the advent of September, Encinitas's high-temperatures adjust to a still moderately hot 76.3°F (24.6°C), closely aligning with the preceding month. Encinitas's nights in September cool down to an average low-temperature of 64.6°F (18.1°C).

Humidity

The average relative humidity in September is 69%.

Rainfall

In Encinitas, California, during September, the rain falls for 4.3 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Encinitas, during the entire year, the rain falls for 63.5 days and collects up to 6.65" (169mm) of precipitation.

Ocean temperature

In September, the average ocean temperature is 66.9°F (19.4°C).
Note: Swimming is not a pleasurable activity for the majority in water at 66.9°F (19.4°C). Breathing control gets harder as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September in Encinitas, California, sunrise is at 6:24 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:34 pm PDT.

Sunshine

In Encinitas, California, the average sunshine in September is 10.4h.

UV index

In Encinitas, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the average September temperature in Encinitas?

The high-temperature, in September, in Encinitas, is 76.3°F (24.6°C), while the low-temperature averages to 64.6°F (18.1°C).

What is the average humidity in September in Encinitas?

In September, the average relative humidity is 69%.

How much does it rain in Encinitas in September?

In September, in Encinitas, California, the rain falls for 4.3 days. Throughout September, 0.31" (8mm) of precipitation is accumulated.

What is the ocean temperature in September in Encinitas?

In Encinitas, California, the average seawater temperature in September is 66.9°F (19.4°C). For swimming, a surface water temperature of 66.9°F (19.4°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in September in Encinitas?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Encinitas?

On the first day of September in Encinitas, California, sunrise is at 6:24 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:34 pm PDT.

How many hours of sunshine does Encinitas have in September?

In Encinitas, California, the average sunshine duration in September is 10.4h.

How high is the UV index in September in Encinitas?

The average daily maximum UV index in September in Encinitas, California, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Encinitas, CA

Average temperature in September - Encinitas, CA
  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The months with the lowest average high temperature are February and December (62.6°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is February (51.8°F).

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Average pressure in September
Encinitas, CA

Average pressure in September - Encinitas, CA
  • Average pressure in September: 29.88"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).

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Average wind speed in September
Encinitas, CA

Average wind speed in September - Encinitas, CA
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).

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Average humidity in September
Encinitas, CA

Average humidity in September - Encinitas, CA
  • Average humidity in September: 69%

The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (60%).

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Average rainfall in September
Encinitas, CA

Average rainfall in September - Encinitas, CA
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in September
Encinitas, CA

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

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is October (3.4 days).

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Average sea temperature in September
Encinitas, CA

Average sea temperature in September - Encinitas, CA
  • Average sea temperature in September: 66.9°F

The best month for swimming (with the highest average sea temperature) is August (68°F).
The coldest months (with the lowest average sea temperature) are January and February (58.7°F).

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

Average daylight in September / Average sunshine in September - Encinitas, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Encinitas, CA

Average sunshine days in September - Encinitas, CA
  • Average sunshine days in September: 22.1 days

The month with the most sunshine days is October (24.9 days).
The month with the least sunshine days is July (19.8 days).

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Average UV index in September
Encinitas, CA

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

The months with the highest UV index are July 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
Encinitas, CA

Average cloud cover in September - Encinitas, CA
  • Average cloud cover in September: 12

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in September
Encinitas, CA

Average visibility in September - Encinitas, 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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Encinitas, California, USA

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