June weather forecastGrover Beach, CA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Grover Beach, California, with an average temperature fluctuating between 75.4°F (24.1°C) and 55°F (12.8°C).Temperature
At the start of June, Grover Beach's average high-temperature reaches a moderately hot 75.4°F (24.1°C), subtly different from the preceding month. During June, the average low-temperature is a cool 55°F (12.8°C).Humidity
In June, the average relative humidity is 63%.Rainfall
The months with the least rainfall are June and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.Daylight
June has the longest days of the year, with an average of 14h and 30min of daylight.On the first day of the month, sunrise is at 5:49 am and sunset at 8:11 pm. On the last day of June, sunrise is at 5:51 am and sunset at 8:20 pm PDT.
Sunshine
The months with the most sunshine are June through August, with an average of 12h of sunshine.UV index
June and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In June, the maximum UV index of 6 translates into these guidelines:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Grover Beach, CA
- Average high temperature in June: 75.4°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in June: 55°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in June
Grover Beach, CA
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in June
Grover Beach, CA
- Average wind speed in June: 6.6mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in June
Grover Beach, CA
- Average humidity in June: 63%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in June
Grover Beach, CA
- Average rainfall in June: 0.04"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in June
Grover Beach, CA
- Average rainfall days in June: 1 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in June /
Average sunshine in June
Grover Beach, CA
- Average daylight in June: 14h and 30min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in June: 12h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in June
Grover Beach, CA
- Average sunshine days in June: 28.5 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in June
Grover Beach, CA
- Average UV index in June: 6
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in June
Grover Beach, CA
- Average cloud cover in June: 9
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in June
Grover Beach, 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).





