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
The arrival of May coincides with an average high-temperature of a still enjoyable 67.6°F (19.8°C), indicating a minimal shift from April's 64.6°F (18.1°C). The low-temperature average for Alameda during May stands at a cool 50.2°F (10.1°C).Humidity
In Alameda, the average relative humidity in May is 71%.Rainfall
In Alameda, in May, it is raining for 4.8 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, in Alameda, there are 67.2 rainfall days, and 6.1" (155mm) of precipitation is accumulated.Ocean temperature
April through June, with an average ocean temperature of 53.1°F (11.7°C), are months with the coldest seawater.Note: Diving into 53.1°F (11.7°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
The average length of the day in May is 14h and 14min.On the first day of May, sunrise is at 6:12 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:24 pm PDT.
Sunshine
In Alameda, the average sunshine in May is 10.8h.UV index
April through September, with an average maximum UV index of 5, are months with the highest UV index in Alameda. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are May temperatures in Alameda?
What is the average humidity in May in Alameda?
How much does it rain in Alameda in May?
What are the months with the coldest ocean in Alameda?
How cold is the water in May in Alameda?
What is the average length of the day in May in Alameda?
When is the sunrise / sunset in May in Alameda?
How long on average sun shines in May in Alameda?
What are the months with the highest UV index in Alameda?
What is the UV index intensity in May in Alameda?
Average temperature in May
Alameda, CA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is September (75.9°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 (56.5°F).
The coldest month (with the lowest average low temperature) is January (45°F).
Average pressure in May
Alameda, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in May
Alameda, CA
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are October and November (5.2mph).
Average humidity in May
Alameda, CA
- Average humidity in May: 71%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (65%).
Average rainfall in May
Alameda, CA
- Average rainfall in May: 0.31"
The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in May
Alameda, CA
- Average rainfall days in May: 4.8 days
The month with the highest number of rainy days is March (11.4 days).
The month with the least rainy days is August (1.3 days).
Average sea temperature in May
Alameda, CA
- Average sea temperature in May: 53.1°F
The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).
Average daylight in May /
Average sunshine in May
Alameda, 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 5min
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 54min).
Average sunshine days in May
Alameda, CA
- Average sunshine days in May: 22.3 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in May
Alameda, CA
- Average UV index in May: 5
The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in May
Alameda, CA
- Average cloud cover in May: 24
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
Alameda, 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).
Alameda, California, USA
Weather forecast for your location
2. Allow the app to use your location
