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United StatesThe weather in May in Cupertino
It's pleasantly warm in May in Cupertino with an average temperature of 22°C. Temperatures this month range from a low of 20°C to a high of 25°C. At night, you can expect temperatures between 11°C and 14°C.
Looking for great weather? May is a good time to be in Cupertino. The temperatures are nice, and there’s little chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Cupertino, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2020, Cupertino reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 15°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 18°C.
Rainfall amount
In May, there is an average of 18 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the Northwest.
Daily weather in May for Cupertino
Click on any day in May to get detailed info about the usual weather on that day in Cupertino. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Cupertino | New York | |
|---|---|---|
| Average temperature | 22°C | 22°C |
| Max. temperature | 25°C | 28°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 18 mm | 105 mm |
| Rainy days | 3 days | 14 days |
Start of May
The month of May starts in Cupertino with warm temps, averaging around 23°C during the day and nights around 13°C.
Mid May
By mid-May, daytime temps drop to around 22°C, with nights around 13°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of May
By the end of May, the average daytime temperature in Cupertino is around 23°C, while nighttime temps are about 14°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
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UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Cupertino for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Cupertino, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Cupertino
Temperature in May in Cupertino over the years
Precipitation charts
These charts show the average amount of precipitation in May in Cupertino, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Cupertino
Total precipitation in May in Cupertino over the years
Daily UV index in May in Cupertino
This chart shows the average daily UV index in May in Cupertino, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Cupertino
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Average weather in Cupertino by month
Click on a month below to see detailed weather info for Cupertino. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.