June weather forecast and climate
Half Moon Bay, CA

A warm and sunny day on a scenic beach in Half Moon Bay, California
A warm and sunny day on a scenic beach in Half Moon Bay, California

Weather in June

June, the first month of the summer, in Half Moon Bay, is a comfortable month, with average temperature ranging between max 63.7°F (17.6°C) and min 53.6°F (12°C).

Temperature

In June, the average high-temperature is practically the same as in May - a comfortable 63.7°F (17.6°C). The average low-temperature, in June, is 53.6°F (12°C).

Humidity

The average relative humidity in June is 79%.

Rainfall

June and July are months with the least rain when the rain falls for 3 days and typically aggregates up to 0.12" (3mm) of rain.

Daylight

With an average of 14.7h of daylight, June has the longest days of the year.

Sunshine

The average sunshine in Half Moon Bay is 11.2h.

UV index

Months with the highest UV index are June, August and September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in June in Half Moon Bay?

The average high-temperature, in June, in Half Moon Bay, is 63.7°F (17.6°C), while the average low-temperature is 53.6°F (12°C).

What is the average humidity in June in Half Moon Bay?

In Half Moon Bay, the average relative humidity in June is 79%.

How many days does it rain in June in Half Moon Bay?

In Half Moon Bay, during June, the rain falls for 3 days and regularly aggregates up to 0.12" (3mm) of precipitation.

What is the driest month in Half Moon Bay?

June and July are months with the least rain in Half Moon Bay when the rain falls for 3 days and typically aggregates up to 0.12" (3mm) of rain.

When are the longest days in Half Moon Bay?

With an average of 14.7h of daylight, June has the longest days of the year in Half Moon Bay.

How many hours of daylight does Half Moon Bay have in June?

In June, the average length of the day is 14.7h.

How long on average sun shines in June in Half Moon Bay?

In Half Moon Bay, California, the average sunshine in June is 11.2h.

What are the months with the highest UV index in Half Moon Bay?

Months with the highest UV index in Half Moon Bay are June, August and September, with an average maximum UV index of 5.

How high is the UV index in June in Half Moon Bay?

In June, the average daily maximum UV index in Half Moon Bay is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in June
Half Moon Bay, CA

Average temperature in June - Half Moon Bay, CA
  • Average high temperature in June: 63.7°F

The warmest month (with the highest average high temperature) is September (66.9°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in June: 53.6°F

The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).

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Average pressure in June
Half Moon Bay, CA

Average pressure in June - Half Moon Bay, CA
  • Average pressure in June: 29.93"

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 June
Half Moon Bay, CA

Average wind speed in June - Half Moon Bay, CA
  • Average wind speed in June: 8.4mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in June
Half Moon Bay, CA

Average humidity in June - Half Moon Bay, CA
  • Average humidity in June: 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 June
Half Moon Bay, CA

Average rainfall in June - Half Moon Bay, CA
  • Average rainfall in June: 0.12"

The wettest month (with the highest rainfall) is February (1.61").
The driest months (with the least rainfall) are June and July (0.12").

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Average rainfall days in June
Half Moon Bay, CA

Average rainfall days in June - Half Moon Bay, CA
  • Average rainfall days in June: 3 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is June (3 days).

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Average daylight in June /
Average sunshine in June
Half Moon Bay, CA

Average daylight in June / Average sunshine in June - Half Moon Bay, CA
  • Average daylight in June: 14.7h

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 June: 11.2h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in June
Half Moon Bay, CA

Average sunshine days in June - Half Moon Bay, CA
  • Average sunshine days in June: 23.4 days

The month with the most sunshine days is October (24.6 days).
Months with the least sunshine days are March and August (18.8 days).

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Average UV index in June
Half Moon Bay, CA

Average UV index in June - Half Moon Bay, CA
  • Average UV index in June: 5

Months with the highest UV index are June, August and September (UV index 5).
Months with the lowest UV index are January, February, March, April, May, July, October, November and December (UV index 4).

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Average cloud cover in June
Half Moon Bay, CA

Average cloud cover in June - Half Moon Bay, CA
  • Average cloud cover in June: 21

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 18).

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Average visibility in June
Half Moon Bay, CA

Average visibility in June - Half Moon Bay, CA
  • Average visibility in June: 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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