Climate averages 1991–2020
El Cajon weather
in June.
A warm, very dry month: the 5th warmest and one of the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in El Cajon: daytime highs average 24.5°C and nights cool to about 15.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 1.8 mm of rain on fewer than one day, which makes June a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 14 h 16 min on an average June day.
The nearest other city in this atlas is Chula Vista (21 km away). In June its highs average 21.2°C, 3.3°C cooler than El Cajon, with 1.8 mm of rain.
Among the 498 cities listed in the United States, El Cajon ranks joint 421st of 498 for the warmest June highs and joint 19th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; El Cajon is 3.4°C cooler than that mean.
From June to July, average highs rise by 2.7°C to 27.2°C, and monthly rainfall rises from 1.8 mm to 2.6 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
El Cajon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.9°C7.9°C | 7.9°C | 57 | 5.6 | 10.310 h |
| February | 17.7°C8.3°C | 8.3°C | 74 | 6.9 | 11.011 h |
| March | 18.6°C9.4°C | 9.4°C | 48 | 5.8 | 12.012 h |
| April | 20.2°C10.9°C | 10.9°C | 23 | 3.9 | 13.013 h |
| May | 21.7°C13.0°C | 13.0°C | 10 | 2.0 | 13.814 h |
| June, selected | 24.5°C15.1°C | 15.1°C | 1.8 | 0.6 | 14.314 h |
| July | 27.2°C17.7°C | 17.7°C | 2.6 | 0.7 | 14.114 h |
| August | 28.3°C18.7°C | 18.7°C | 1.8 | 0.5 | 13.413 h |
| September | 27.6°C17.8°C | 17.8°C | 4.4 | 0.9 | 12.412 h |
| October | 24.6°C14.6°C | 14.6°C | 15 | 2.5 | 11.411 h |
| November | 21.2°C11.0°C | 11.0°C | 24 | 3.3 | 10.511 h |
| December | 17.7°C7.9°C | 7.9°C | 47 | 5.3 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Chula Vista in JuneUnited States · 21 kmHigh 21.2°C · Low 15.0°C · 1.8 mm rain
- San Diego in JuneUnited States · 21 kmHigh 22.0°C · Low 14.9°C · 1.2 mm rain
- Tijuana in JuneMexico · 33 kmHigh 21.4°C · Low 15.3°C · 2.4 mm rain
- Escondido in JuneUnited States · 38 kmHigh 25.2°C · Low 15.1°C · 3.0 mm rain
- San Marcos in JuneUnited States · 43 kmHigh 23.2°C · Low 14.8°C · 2.5 mm rain
- Rosarito in JuneMexico · 49 kmHigh 21.6°C · Low 16.0°C · 1.0 mm rain
- Vista in JuneUnited States · 52 kmHigh 24.9°C · Low 15.6°C · 2.5 mm rain
- Oceanside in JuneUnited States · 59 kmHigh 22.1°C · Low 15.7°C · 1.7 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for El Cajon) is explained once on the El Cajon year overview and on the Sources, method and limits page.
Chula Vista lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.