June weather forecast
Redwood City, CA

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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 temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 53.2°F (11.8°C).

Temperature

June notes an average high-temperature of a pleasant 70.3°F (21.3°C), subtly differing from May's 65.3°F (18.5°C). The average temperature drops to a cool 53.2°F (11.8°C) during the night in the month of June.

Humidity

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

Rainfall

In Redwood City, during June, the rain falls for 1.8 days and regularly aggregates up to 0.12" (3mm) of precipitation. In Redwood City, during the entire year, the rain falls for 73.4 days and collects up to 11.89" (302mm) of precipitation.

Ocean temperature

In June, the average ocean temperature is 54°F (12.2°C).
Note: It is advised against swimming in 54°F (12.2°C) when it drops below 50°F (10°C). Such temperatures can cause extreme cold shock, leading to hyperventilation.

Daylight

With an average of 14h and 42min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:24 pm. On the last day of June, sunrise is at 5:51 am and sunset at 8:34 pm PDT.

Sunshine

The average sunshine in June is 11.7h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in June interprets into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What is the average June temperature?

In June, in Redwood City, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in June?

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

How many days does it rain in June?

In Redwood City, in June, it is raining for 1.8 days, with typically 0.12" (3mm) of accumulated precipitation.

How cold is the water in June in Redwood City?

In Redwood City, in June, the average water temperature 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?

The month with the longest days is June, with an average of 14h and 42min of daylight.

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

In Redwood City, the average day length in June is 14h and 43min.

When are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 5:49 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:34 pm PDT.

How long on average sun shines in June in Redwood City?

The average sunshine duration in June is 11.7h.

What is the month with the highest UV index?

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

What is the UV index reading in June?

The average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in June
Redwood City, CA

Average pressure in June - Redwood City, CA
  • Average pressure in June: 29.93"Hg

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

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).

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%).

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").

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).

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).

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: 14h and 4min

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

  • Average sunshine in June: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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).

Average UV index in June
Redwood City, CA

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

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

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).

Average visibility in June
Redwood City, CA

Average visibility in June - Redwood City, CA
  • Average visibility in June: 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).

Redwood City, California, USA

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