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United StatesThe weather in May in El Cajon
It's pleasantly warm in May in El Cajon with an average temperature of 22°C. Temperatures this month range from a low of 20°C to a high of 24°C. At night, you can expect temperatures between 14°C and 16°C.
Looking for great weather? May is a good time to be in El Cajon. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for El Cajon, 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 37°C in 2014, El Cajon reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 14°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 20°C.
Rainfall amount
In May, there is an average of 27 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the West.
Daily weather in May for El Cajon
Click on any day in May to get detailed info about the usual weather on that day in El Cajon. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| El Cajon | New York | |
|---|---|---|
| Average temperature | 22°C | 22°C |
| Max. temperature | 24°C | 28°C |
| Min. temperature | 14°C | -5°C |
| Total precipitation | 27 mm | 105 mm |
| Rainy days | 4 days | 14 days |
Start of May
The month of May starts in El Cajon with warm temps, averaging around 22°C during the day and nights around 15°C.
Mid May
By mid-May, daytime temps stay steady at around 22°C, with nights around 16°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 El Cajon is around 22°C, while nighttime temps are about 16°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 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 El Cajon for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in El Cajon, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in El Cajon
Temperature in May in El Cajon over the years
Precipitation charts
These charts show the average amount of precipitation in May in El Cajon, 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 El Cajon
Total precipitation in May in El Cajon over the years
Daily UV index in May in El Cajon
This chart shows the average daily UV index in May in El Cajon, 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 El Cajon
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Average weather in El Cajon by month
Click on a month below to see detailed weather info for El Cajon. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.