United StatesAverage weather for El Cajon in May
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.
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. There’s little chance of precipitation. The weather’s mostly sunny and dry.
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.
In May, there is an average of 27 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the West.
El Cajon in May |
New York | ||
|---|---|---|---|
 Average temperature |
22°C | 22°C | |
 Max. temperature |
24°C | 28°C | |
| Min. temperature |
20°C | -5°C | |
 Total precipitation |
27 mm | 105 mm | |
| Rainy days |
3 days | 14 days | |
April
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.
Is May a good time to visit El Cajon?
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.
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.
Check out the climate of El Cajon for all months and discover the best travel time
Daily Temperature in May in El Cajon
This chart shows the average daily high and low temperatures in May for El Cajon, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in El Cajon
The chart below shows the average daily precipitation in May for El Cajon, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 3 days of precipitation in El Cajon.
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.
Temperature in May in El Cajon over the years
This chart shows the average temperature in May in El Cajon, measured in degrees Celsius, over the past few years.
Total precipitation in May in El Cajon over the years
This chart shows the average precipitation in May in El Cajon, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
Weather experiences in May in El Cajon
Have you been to El Cajon in May?
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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.
