Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
As Redwood City welcomes May, the average high-temperature is noted at a still comfortable 65.3°F (18.5°C), closely aligning with the preceding month. In Redwood City, May nights cool down to an average of 50.2°F (10.1°C).Humidity
In Redwood City, the average relative humidity in May is 73%.Rainfall
In Redwood City, in May, it is raining for 5.3 days, with typically 0.59" (15mm) of accumulated 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 May, the average ocean temperature is 54°F (12.2°C).Note: Dipping into 54°F (12.2°C) below 50°F (10°C) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 55.4°F (13°C) feels cold to the bone.
Daylight
In Redwood City, the average length of the day in May is 14h and 13min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:24 pm PDT.
Sunshine
In May, the average sunshine is 10.7h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 4 in May translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May in Redwood City?
How many days does it rain in May?
How cold is the water in May?
What is the average length of the day in May in Redwood City?
When are sunrise and sunset in May?
How many hours of sunshine does Redwood City have in May?
How high is the UV index in May?
Average temperature in May
Redwood City, CA
- Average high temperature in May: 65.3°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 May: 50.2°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 May
Redwood City, CA
- Average pressure in May: 29.98"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 May
Redwood City, CA
- Average wind speed in May: 7.3mph
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 May
Redwood City, CA
- Average humidity in May: 73%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Redwood City, CA
- Average rainfall in May: 0.59"
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 May
Redwood City, CA
- Average rainfall days in May: 5.3 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 May
Redwood City, CA
- Average sea temperature in May: 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 May /
Average sunshine in May
Redwood City, CA
- Average daylight in May: 14h and 1min
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 May: 10h 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 May
Redwood City, CA
- Average sunshine days in May: 23.2 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 May
Redwood City, CA
- Average UV index in May: 4
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 May
Redwood City, CA
- Average cloud cover in May: 25
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 May
Redwood City, CA
- Average visibility in May: 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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