Climate averages 1991–2020
Mission Viejo weather
in June.
A warm, very dry month: the 5th warmest and the 3rd 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 Mission Viejo: daytime highs average 23.4°C and nights cool to about 15.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 1.5 mm of rain on fewer than one day, which makes June a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 20 min on an average June day.
The nearest other city in this atlas is Irvine (16 km away). In June its highs average 24.4°C, 1.0°C warmer than Mission Viejo, with 2.0 mm of rain.
Among the 498 cities listed in the United States, Mission Viejo ranks 452nd of 498 for the warmest June highs and 11th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Mission Viejo is 4.5°C cooler than that mean.
From June to July, average highs rise by 2.6°C to 26.1°C, and monthly rainfall falls from 1.5 mm to 1.3 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
Mission Viejo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.8°C8.4°C | 8.4°C | 66 | 5.5 | 10.210 h |
| February | 17.7°C8.9°C | 8.9°C | 79 | 6.3 | 11.011 h |
| March | 18.5°C10.1°C | 10.1°C | 46 | 5.7 | 12.012 h |
| April | 19.8°C11.4°C | 11.4°C | 20 | 2.9 | 13.013 h |
| May | 21.0°C13.4°C | 13.4°C | 7.7 | 1.7 | 13.914 h |
| June, selected | 23.4°C15.3°C | 15.3°C | 1.5 | 0.4 | 14.314 h |
| July | 26.1°C17.7°C | 17.7°C | 1.3 | 0.4 | 14.114 h |
| August | 27.2°C18.5°C | 18.5°C | 0.8 | 0.2 | 13.413 h |
| September | 26.6°C17.9°C | 17.9°C | 3.3 | 0.6 | 12.412 h |
| October | 24.1°C15.1°C | 15.1°C | 15 | 2.0 | 11.411 h |
| November | 21.0°C11.6°C | 11.6°C | 21 | 2.7 | 10.510 h |
| December | 17.6°C8.5°C | 8.5°C | 48 | 4.9 | 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
- Irvine in JuneUnited States · 16 kmHigh 24.4°C · Low 15.7°C · 2.0 mm rain
- Santa Ana, United States in JuneUnited States · 24 kmHigh 23.1°C · Low 15.2°C · 2.0 mm rain
- Huntington Beach in JuneUnited States · 31 kmHigh 23.0°C · Low 15.2°C · 1.8 mm rain
- Corona in JuneUnited States · 32 kmHigh 28.7°C · Low 15.6°C · 3.4 mm rain
- Anaheim in JuneUnited States · 34 kmHigh 25.0°C · Low 14.9°C · 1.8 mm rain
- Westminster (California), United States in JuneUnited States · 36 kmHigh 24.7°C · Low 15.0°C · 1.8 mm rain
- Fullerton in JuneUnited States · 38 kmHigh 27.2°C · Low 15.6°C · 1.8 mm rain
- Buena Park in JuneUnited States · 42 kmHigh 26.9°C · Low 15.4°C · 1.8 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 Mission Viejo) is explained once on the Mission Viejo year overview and on the Sources, method and limits page.