June weather forecastSimi Valley, CA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Simi Valley, California, with an average temperature varying between 75.6°F (24.2°C) and 57.7°F (14.3°C).Temperature
The onset of June introduces a subtle rise in the average high-temperature, nudging from an agreeable 70.2°F (21.2°C) in May to a moderately hot 75.6°F (24.2°C). In the month of June, Simi Valley records a consistent average low-temperature of 57.7°F (14.3°C).Humidity
The most humid month in Simi Valley is June, with an average relative humidity of 62%.Rainfall
The month with the least rainfall is June, when the rain falls for 1.5 days and typically collects 0.08" (2mm) of precipitation.Daylight
June has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of June, sunrise is at 5:43 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:11 pm PDT.
Sunshine
June and July, with an average of 12.1h of sunshine, are months with the most sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In June, an average UV index of 6 transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Simi Valley, CA
- Average high temperature in June: 75.6°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in June: 57.7°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (46.4°F).
Average pressure in June
Simi Valley, CA
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in June
Simi Valley, CA
- Average wind speed in June: 4.8mph
The windiest month (with the highest average wind speed) is December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in June
Simi Valley, CA
- Average humidity in June: 62%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (50%).
Average rainfall in June
Simi Valley, CA
- Average rainfall in June: 0.08"
The wettest month (with the highest rainfall) is February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in June
Simi Valley, CA
- Average rainfall days in June: 1.5 days
The month with the highest number of rainy days is March (8 days).
The months with the least rainy days are June and August (1.5 days).
Average daylight in June /
Average sunshine in June
Simi Valley, CA
- Average daylight in June: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in June: 12h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in June
Simi Valley, CA
- Average sunshine days in June: 23.8 days
The month with the most sunshine days is August (25.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in June
Simi Valley, CA
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in June
Simi Valley, CA
- Average cloud cover in June: 7
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in June
Simi Valley, CA
- Average visibility in June: 6mi
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).
