Climate and monthly weather forecastMission Viejo, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another enjoyable winter month in Mission Viejo, California, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 65.5°F (18.6°C). Entering January, the average high-temperature is recorded at a still comfortable 65.5°F (18.6°C), exhibiting a minimal shift from December's 63°F (17.2°C). Weather in January »Weather in February
February, the last month of the winter in Mission Viejo, is another comfortable month, with an average temperature fluctuating between 64°F (17.8°C) and 48.7°F (9.3°C). Mission Viejo experiences an average high-temperature of a still refreshing 64°F (17.8°C) in February, marking an insignificant shift from 65.5°F (18.6°C) in January. Weather in February »Weather in March
March, the first month of the spring in Mission Viejo, is still a comfortable month, with an average temperature varying between 66.2°F (19°C) and 50.4°F (10.2°C). Upon the beginning of March, Mission Viejo's high-temperatures register at a still comfortable 66.2°F (19°C), closely mirroring the preceding month. Weather in March »Weather in April
April in Mission Viejo, California, is a pleasant spring month, with an average temperature ranging between min 52.5°F (11.4°C) and max 68.5°F (20.3°C). During April, the average high-temperature is an agreeable 68.5°F (20.3°C), maintaining a close resemblance to that of the preceding month. Weather in April »Weather in May
May, the last month of the spring in Mission Viejo, is another pleasant month, with temperature in the range of an average high of 70.2°F (21.2°C) and an average low of 55.2°F (12.9°C). As Mission Viejo steps into May, the average high-temperature holds at a still agreeable 70.2°F (21.2°C), hinting at a minor fluctuation from the prior month. Weather in May »Weather in June
June, the first month of the summer in Mission Viejo, is a warm month, with an average temperature fluctuating between 57.4°F (14.1°C) and 74.1°F (23.4°C). Entering June, the average high-temperature is recorded at a moderately hot 74.1°F (23.4°C), exhibiting a minimal shift from May's 70.2°F (21.2°C). Weather in June »Weather in July
July, like June, in Mission Viejo, California, is another warm summer month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 79°F (26.1°C). The commencement of July records an average high-temperature of a still moderately hot 79°F (26.1°C), barely varying from June's 74.1°F (23.4°C). Weather in July »Weather in August
August, the last month of the summer in Mission Viejo, is also a moderately hot month, with an average temperature ranging between max 80.8°F (27.1°C) and min 64°F (17.8°C). August is the month when Mission Viejo sees the highest average temperatures, with a high of 80.8°F (27.1°C) and a low of 64°F (17.8°C). In August, the heat index is evaluated at 84.2°F (29°C). Weather in August »Weather in September
September, the first month of the autumn in Mission Viejo, is still a warm month, with an average temperature varying between 63.3°F (17.4°C) and 79.7°F (26.5°C). Mission Viejo indicates an average high-temperature of a still moderately hot 79.7°F (26.5°C) in September, showing minor variation from August's 80.8°F (27.1°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Mission Viejo, California, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 60.1°F (15.6°C). Mission Viejo experiences a subtle adjustment in high-temperatures to a still moderately hot 75.2°F (24°C) with the onset of October, maintaining near parity with September's 79.7°F (26.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another pleasant month in Mission Viejo, California, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 69.3°F (20.7°C). November is characterized by a slight reduction in average high-temperature, easing from a moderately hot 75.2°F (24°C) in October to a pleasant 69.3°F (20.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a comfortable month in Mission Viejo, California, with an average temperature fluctuating between 63°F (17.2°C) and 49.8°F (9.9°C). Mission Viejo experiences its lowest temperatures in December, with an average peak of 63°F (17.2°C) and a low of 49.8°F (9.9°C). Weather in December »Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Throughout the year, there are 64.1 rainfall days, and 5.67" (144mm) of precipitation is accumulated.
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
May and June, with an average relative humidity of 70%, are most humid months.
June is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.08" (2mm) of precipitation.
The month with the longest days is June, with an average of 14h and 18min of daylight.
The months with the highest UV index are June through September, with an average maximum UV index of 6.
July and August, with an average of 12h of sunshine, are months with the most sunshine.
Mission Viejo's warmest temperatures are experienced in August, with average high temperatures of 80.8°F (27.1°C) and lows of 64°F (17.8°C).
November is the least humid month in Mission Viejo, with an average relative humidity of 56%.
December is the month when Mission Viejo experiences its coldest temperatures, averaging a high of 63°F (17.2°C) and a low of 49.8°F (9.9°C).
December is the month with the most rainfall. Rain falls for 6.7 days and accumulates 0.98" (25mm) of precipitation.
The month with the shortest days is December, with an average of 10h and 0min of daylight.
December has the least sunshine of the year, with an average of 6.6h of sunshine.
Average temperature
Mission Viejo, CA
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63°F).
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure
Mission Viejo, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.94"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed
Mission Viejo, CA
- Average wind speed in January:
5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.6mph - Average wind speed in October:
4.7mph - Average wind speed in November:
4.9mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity
Mission Viejo, CA
The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall
Mission Viejo, CA
- Average rainfall in January:
0.63" - Average rainfall in February:
0.67" - Average rainfall in March:
0.67" - Average rainfall in April:
0.39" - Average rainfall in May:
0.35" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.35" - Average rainfall in September:
0.24" - Average rainfall in October:
0.35" - Average rainfall in November:
0.55" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is December (0.98").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days
Mission Viejo, CA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
8.4 days - Average rainfall days in April:
7 days - Average rainfall days in May:
5.8 days - Average rainfall days in June:
2.3 days
- Average rainfall days in July:
5.1 days - Average rainfall days in August:
3.1 days - Average rainfall days in September:
4.4 days - Average rainfall days in October:
4.7 days - Average rainfall days in November:
4.9 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.3 days).
Average daylight / Average sunshine
Mission Viejo, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 42min - Average sunshine in February:
6h and 42min - Average sunshine in March:
8h and 30min - Average sunshine in April:
10h and 42min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 30min - Average sunshine in October:
8h and 24min - Average sunshine in November:
7h and 0min - Average sunshine in December:
6h and 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days
Mission Viejo, CA
- Average sunshine days in January:
24.4 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
20.4 days - Average sunshine days in April:
20.2 days - Average sunshine days in May:
19.5 days - Average sunshine days in June:
22.3 days
- Average sunshine days in July:
22.7 days - Average sunshine days in August:
24.4 days - Average sunshine days in September:
22.1 days - Average sunshine days in October:
23.6 days - Average sunshine days in November:
22.9 days - Average sunshine days in December:
22.6 days
The months with the most sunshine days are January and August (24.4 days).
The month with the least sunshine days is May (19.5 days).
Average UV index
Mission Viejo, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover
Mission Viejo, CA
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility
Mission Viejo, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
