Temperatures in January
It's pleasantly warm in January in El Cajon with an average temperature of 20°C. Temperatures this month range from a low of 18°C to a high of 23°C. At night, you can expect temperatures between 8°C and 11°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for El Cajon in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in El Cajon with mild temperatures, averaging around 21°C during the day and nights close to 10°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-January
By mid-January, the average daytime temperature stays the same at 21°C, with nights close to 11°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of January
By the end of January, the average daytime temperature in El Cajon will be around 21°C, with nights close to 10°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
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Precipitation in January
In January, there is an average of 71 mm of precipitation, spread over 5 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
The precipitation chance averages 18% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for El Cajon. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
El Cajon in January |
London | ||
|---|---|---|---|
 Average Temperature |
20°C | 8°C | |
 High Temp |
23°C | 9°C | |
| Low Temp |
18°C | 6°C | |
 Total Precipitation |
71 mm | 58 mm | |
| Rainy Days |
5 days | 9 days | |
December
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is January a good time to visit El Cajon?
Want nice weather? Then January is a great time to be in El Cajon. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for El Cajon in January
With 31°C, El Cajon hit the highest temperature in the last 10 years in January 2021. The lowest daytime temperature in this month was 11°C in 2021. The extreme night temperatures ranged from a low of 3°C to a high of 17°C.
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Daily Temperature in January in El Cajon
This chart shows the average daily temperatures, both day and night, for each day in January in El Cajon, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in El Cajon
The chart below shows the average daily precipitation in January for El Cajon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 5 days of rain in El Cajon.
Daily UV Index in January in El Cajon
This chart shows the average daily UV index in January 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 January in El Cajon Over the Years
This chart shows the average temperature in January in El Cajon, measured in degrees Celsius, over the past years.
Total Precipitation in January in El Cajon Over the Years
This chart shows the average precipitation in January in El Cajon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in January for El Cajon
Click on a specific day in January for detailed info on the typical 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 January in El Cajon
Have you been to El Cajon in January?
Share your weather experience in January in El Cajon.
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.
