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 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
Cupertino transitions into May recording an average high-temperature of an agreeable 69.3°F (20.7°C), closely aligning with the preceding month's temperature. In the month of May, Cupertino experiences an average low-temperature of 48.9°F (9.4°C).Humidity
The average relative humidity in May is 69%.Rainfall
In Cupertino, in May, during 4 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, in Cupertino, there are 53.6 rainfall days, and 5.39" (137mm) of precipitation is accumulated.Daylight
The average length of the day in May is 14h and 11min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:22 pm PDT.
Sunshine
The average sunshine in May is 10.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Cupertino have in May?
When are sunrise and sunset in May?
How long on average sun shines in May in Cupertino?
What is the UV index intensity in May?
Average temperature in May
Cupertino, CA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is August (56.1°F).
The coldest months (with the lowest average low temperature) are February and March (44.2°F).
Average pressure in May
Cupertino, 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
Cupertino, CA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).
Average humidity in May
Cupertino, CA
- Average humidity in May: 69%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July, September and October (64%).
Average rainfall in May
Cupertino, CA
- Average rainfall in May: 0.28"
The wettest month (with the highest rainfall) is February (1.02").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Cupertino, CA
- Average rainfall days in May: 4 days
The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.8 days).
Average daylight in May /
Average sunshine in May
Cupertino, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
Cupertino, CA
- Average sunshine days in May: 24.6 days
The month with the most sunshine days is August (28.5 days).
The months with the least sunshine days are February and March (20.8 days).
Average UV index in May
Cupertino, CA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Cupertino, CA
- Average cloud cover in May: 23
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in May
Cupertino, 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).
Cupertino, California, USA
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