June weather forecast and climate
Redwood City, CA

The intricate design of the organized Redwood City in California, with a scenic view of the harbor and the rest of the city
The intricate design of the organized Redwood City in California, with a scenic view of the harbor and the rest of the city

Weather in June

June, the first month of the summer, in Redwood City, is a pleasant month, with average temperature varying between 53.2°F (11.8°C) and 70.3°F (21.3°C).

Temperature

In Redwood City, the average high-temperature in June is essentially the same as in May - a pleasant 70.3°F (21.3°C). In June, in Redwood City, the average low-temperature is 53.2°F (11.8°C).

Humidity

The average relative humidity in Redwood City is 71%.

Rainfall

In Redwood City, it is raining for 1.8 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, in Redwood City, there are 73.4 rainfall days, and 11.89" (302mm) of precipitation is accumulated.

Ocean temperature

In June, the average ocean temperature in Redwood City is 54°F (12.2°C).
Note: Swimming in 54°F (12.2°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

June has the longest days of the year in Redwood City, with an average of 14.7h of daylight.

Sunshine

In Redwood City, the average sunshine in June is 11.7h.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 average humidity in June in Redwood City?

In Redwood City, California, the average relative humidity in June is 71%.

How much does it rain in Redwood City in June?

In June, in Redwood City, California, the rain falls for 1.8 days. Throughout June, 0.12" (3mm) of precipitation is accumulated.

How cold is the water in June in Redwood City?

In June, the average ocean temperature in Redwood City, California, is 54°F (12.2°C). Swimming in 54°F (12.2°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.

When are the longest days in Redwood City?

The month with the longest days in Redwood City is June, with an average of 14.7h of daylight.

How many hours of daylight does Redwood City have in June?

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

How many hours of sunshine does Redwood City have in June?

In Redwood City, California, the average sunshine in June is 11.7h.

What are the months with the highest UV index in Redwood City?

June through September, with an average maximum UV index of 5, are months with the highest UV index in Redwood City, California.

What is the UV index intensity in June in Redwood City?

In June, the average daily maximum UV index in Redwood City is 5. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in June
Redwood City, CA

Average temperature in June - Redwood City, CA
  • Average high temperature in June: 70.3°F

The warmest months (with the highest average high temperature) are July and August (73°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in June: 53.2°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 (46°F).

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Average pressure in June
Redwood City, CA

Average pressure in June - Redwood City, 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
Redwood City, CA

Average wind speed in June - Redwood City, CA
  • Average wind speed in June: 6.8mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.5mph).

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Average humidity in June
Redwood City, CA

Average humidity in June - Redwood City, CA
  • Average humidity in June: 71%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in June
Redwood City, CA

Average rainfall in June - Redwood City, CA
  • Average rainfall in June: 0.12"

The wettest month (with the highest rainfall) is February (2.36").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in June
Redwood City, CA

Average rainfall days in June - Redwood City, CA
  • Average rainfall days in June: 1.8 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).

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Average sea temperature in June
Redwood City, CA

Average sea temperature in June - Redwood City, CA
  • Average sea temperature in June: 53.9°F

The best months for swimming (with the highest average sea temperature) are August and September (57.7°F).
The coldest month (with the lowest average sea temperature) is April (53.4°F).

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Average daylight in June /
Average sunshine in June
Redwood City, CA

Average daylight in June / Average sunshine in June - Redwood City, 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: 11.7h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in June
Redwood City, CA

Average sunshine days in June - Redwood City, CA
  • Average sunshine days in June: 26.3 days

The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is March (17.5 days).

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Average UV index in June
Redwood City, CA

Average UV index in June - Redwood City, CA
  • Average UV index in June: 5

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

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Average cloud cover in June
Redwood City, CA

Average cloud cover in June - Redwood City, CA
  • Average cloud cover in June: 14

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in June
Redwood City, CA

Average visibility in June - Redwood City, 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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