May weather forecast and climate
Moss Beach, CA

Weather in May

The last month of the spring, May, is a comfortable month in Moss Beach, California, with average temperature fluctuating between 61°F (16.1°C) and 51.4°F (10.8°C).

Temperature

In May, the average high-temperature is almost the same as in April - an enjoyable 61°F (16.1°C). The average low-temperature, in May, is 51.4°F (10.8°C).

Humidity

In Moss Beach, the average relative humidity is 79%.

Rainfall

In Moss Beach, in May, it is raining for 7 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, there are 77.3 rainfall days, and 6.81" (173mm) of precipitation is accumulated.

Ocean temperature

In Moss Beach, in May, the average water temperature is 52.7°F (11.5°C).
Note: Swimming in 52.7°F (11.5°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.

Daylight

In Moss Beach, the average length of the day is 14.2h.

Sunshine

In Moss Beach, the average sunshine in May is 9.7h.

UV index

In Moss Beach, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Moss Beach?

The average high-temperature, in May, in Moss Beach, is 61°F (16.1°C), while the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in May in Moss Beach?

The average relative humidity in May in Moss Beach is 79%.

How much does it rain in Moss Beach in May?

In Moss Beach, California, during May, the rain falls for 7 days and regularly aggregates up to 0.39" (10mm) of precipitation.

What is the ocean temperature in May in Moss Beach?

In Moss Beach, the average seawater temperature in May is 52.7°F (11.5°C). Swimming in 52.7°F (11.5°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in May in Moss Beach?

In Moss Beach, California, the average length of the day in May is 14.2h.

How long on average sun shines in May in Moss Beach?

In Moss Beach, the average sunshine in May is 9.7h.

How high is the UV index in May in Moss Beach?

The average daily maximum UV index in May in Moss Beach is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in May
Moss Beach, CA

Average temperature in May - Moss Beach, CA
  • Average high temperature in May: 61°F

The warmest month (with the highest average high temperature) is September (67.5°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is September (56.8°F).
The coldest months (with the lowest average low temperature) are January and February (48.7°F).

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Average pressure in May
Moss Beach, CA

Average pressure in May - Moss Beach, CA
  • Average pressure in May: 29.98"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.92").

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Average wind speed in May
Moss Beach, CA

Average wind speed in May - Moss Beach, CA
  • Average wind speed in May: 9.1mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are August and September (6.8mph).

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Average humidity in May
Moss Beach, CA

Average humidity in May - Moss Beach, CA
  • Average humidity in May: 79%

The month with the highest relative humidity is August (82%).
Months with the lowest relative humidity are November and December (72%).

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Average rainfall in May
Moss Beach, CA

Average rainfall in May - Moss Beach, CA
  • Average rainfall in May: 0.39"

The wettest month (with the highest rainfall) is February (1.34").
The driest months (with the least rainfall) are June, July and September (0.12").

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Average rainfall days in May
Moss Beach, CA

Average rainfall days in May - Moss Beach, CA
  • Average rainfall days in May: 7 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is September (3.6 days).

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Average sea temperature in May
Moss Beach, CA

Average sea temperature in May - Moss Beach, CA
  • Average sea temperature in May: 52.7°F

The best month for swimming (with the highest average sea temperature) is September (56.9°F).
The coldest month (with the lowest average sea temperature) is June (52.4°F).

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Average daylight in May /
Average sunshine in May
Moss Beach, CA

Average daylight in May / Average sunshine in May - Moss Beach, CA
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in May: 9.7h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in May
Moss Beach, CA

Average sunshine days in May - Moss Beach, CA
  • Average sunshine days in May: 20.3 days

The month with the most sunshine days is October (24.5 days).
The month with the least sunshine days is August (18.7 days).

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Average UV index in May
Moss Beach, CA

Average UV index in May - Moss Beach, CA
  • Average UV index in May: 4

Months with the highest UV index are June, August and September (UV index 5).
Months with the lowest UV index are February and December (UV index 3).

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Average cloud cover in May
Moss Beach, CA

Average cloud cover in May - Moss Beach, CA
  • Average cloud cover in May: 33

The month with the most cloud cover is March (Cloud cover 39).
Months with the least cloud cover are September and October (Cloud cover 21).

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Average visibility in May
Moss Beach, CA

Average visibility in May - Moss Beach, CA
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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