September weather - Autumn 2024 - Carmel-by-the-Sea, CA

Weather in September
Frequently asked questions
Average temperature in September
Average pressure in September
Average wind speed in September
Average humidity in September
Average rainfall in September
Average rainfall days in September
Average sea temperature in September
Average daylight in September
Average sunshine in September
Average sunshine days in September
Average UV index in September
Average cloud cover in September
Average visibility in September

Magnificent surroundings of luxurious homes in Carmel-by-the-Sea Town, California

Weather in September

In September, Carmel-by-the-Sea experiences a slight drop in maximum temperature to 69.6°F (20.9°C). This coincides with the start of the downward trend toward more fall-like weather conditions. However, the sunshine hours and daylight are still abundant, making it a pleasant time to visit the city. The sea temperature remains comfortable for swimming while the humidity levels begin to drop, resulting in cooler mornings and evenings.

Temperature

September, recording an average high temperature of 69.6°F (20.9°C) and a low temperature of 55.4°F (13°C), is Carmel-by-the-Sea's warmest month.

Humidity

In Carmel-by-the-Sea, the average relative humidity in September is 75%.

Rainfall

In Carmel-by-the-Sea, in September, during 2.4 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. Throughout the year, in Carmel-by-the-Sea, there are 70 rainfall days, and 11.93" (303mm) of precipitation is accumulated.

Ocean temperature

The months with the warmest seawater are August and September, with an average ocean temperature of 58.1°F (14.5°C).
Note: Immersing oneself in 58.1°F (14.5°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.

Daylight

The average length of the day in September in Carmel-by-the-Sea is 12h and 24min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:35 pm. On the last day of September, in Carmel-by-the-Sea, sunrise is at 7:02 am and sunset at 6:52 pm PDT.

Sunshine

In September, the average sunshine is 11h.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

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Frequently asked questions

What is the hottest time of year in Carmel-by-the-Sea?

With an average high-temperature of 69.6°F (20.9°C) and an average low-temperature of 55.4°F (13°C), September is the warmest month.

What are September temperatures in Carmel-by-the-Sea?

In September, in Carmel-by-the-Sea, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 55.4°F (13°C).

What is the average humidity in September in Carmel-by-the-Sea?

In Carmel-by-the-Sea, the average relative humidity in September is 75%.

How many days does it rain in September in Carmel-by-the-Sea?

In Carmel-by-the-Sea, in September, during 2.4 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

What months are the ocean warmest in Carmel-by-the-Sea?

August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater in Carmel-by-the-Sea, California.

How cold is the water in September in Carmel-by-the-Sea?

In September, the average ocean temperature in Carmel-by-the-Sea is 58.1°F (14.5°C). Swimming in 58.1°F (14.5°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Carmel-by-the-Sea have in September?

The average day length in September in Carmel-by-the-Sea, California, is 12h and 24min.

When is the sunrise / sunset in September in Carmel-by-the-Sea?

On the first day of September in Carmel-by-the-Sea, California, sunrise is at 6:39 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:52 pm PDT.

How long on average sun shines in September in Carmel-by-the-Sea?

The average sunshine duration in September is 11h.

When is the highest UV index in Carmel-by-the-Sea?

The months with the highest UV index in Carmel-by-the-Sea, California, are June through September, with an average maximum UV index of 5.

What is the UV index reading in September in Carmel-by-the-Sea?

In September, the average daily maximum UV index in Carmel-by-the-Sea is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

68.4°F 20.2°C

69.6°F 20.9°C

66.7°F 19.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.8mph 10.9km/h

6.6mph 10.6km/h

7.3mph 11.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

1.3

2.4

3.5

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

27.8

26.8

26.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Carmel-by-the-Sea, CA

Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is September (69.6°F).
The month with the lowest average high temperature is December (57°F).

Average low temperature in September: 55.4°F

The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

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Average pressure in September
Carmel-by-the-Sea, CA

Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.93"Hg).

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Average wind speed in September
Carmel-by-the-Sea, CA

Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in September
Carmel-by-the-Sea, CA

Average humidity in September: 75%

The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is November (70%).

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Average rainfall in September
Carmel-by-the-Sea, CA

Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in September
Carmel-by-the-Sea, CA

Average rainfall days in September: 2.4 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (1.3 days).

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Average sea temperature in September
Carmel-by-the-Sea, CA

Average sea temperature in September: 58.1°F

The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

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Average daylight in September /
Average sunshine in September
Carmel-by-the-Sea, CA

Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

Average sunshine in September: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in September
Carmel-by-the-Sea, CA

Average sunshine days in September: 26.8 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index in September
Carmel-by-the-Sea, CA

Average UV index in September: 5

The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Carmel-by-the-Sea, CA

Average cloud cover in September: 15

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 13).

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Average visibility in September
Carmel-by-the-Sea, 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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September weather forecast
Carmel-by-the-Sea, CA

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