June weather forecastPort San Luis, CA
June
Weather in June
June, the first month of the summer in Port San Luis, is a moderately hot month, with an average temperature ranging between min 55°F (12.8°C) and max 76.6°F (24.8°C).Temperature
In Port San Luis, the onset of June comes with a modest high-temperature shift, transitioning from May's agreeable 71.2°F (21.8°C) to a warm 76.6°F (24.8°C). Port San Luis anticipates a pronounced temperature drop from daily highs during the nights of June, with an average low of 55°F (12.8°C).Humidity
The average relative humidity in June is 61%.Rainfall
June and August are months with the least rain when the rain falls for 1.1 days and typically aggregates up to 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 June, sunrise is at 5:49 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:21 pm PDT.
Sunshine
The months with the most sunshine are June through August, with an average of 12h of sunshine.UV index
The months with the highest UV index are June and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 6 in June suggests the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Port San Luis, CA
- Average high temperature in June: 76.6°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (60.3°F).
- Average low temperature in June: 55°F
The month with the highest average low temperature is September (60.3°F).
The coldest month (with the lowest average low temperature) is February (45.7°F).
Average pressure in June
Port San Luis, 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
Port San Luis, CA
- Average wind speed in June: 6.2mph
The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).
Average humidity in June
Port San Luis, CA
- Average humidity in June: 61%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are September and October (57%).
Average rainfall in June
Port San Luis, CA
- Average rainfall in June: 0.04"
The wettest month (with the highest rainfall) is March (2.01").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in June
Port San Luis, CA
- Average rainfall days in June: 1.1 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.6 days).
Average daylight in June /
Average sunshine in June
Port San Luis, 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
Port San Luis, CA
- Average sunshine days in June: 28.3 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is February (19.1 days).
Average UV index in June
Port San Luis, CA
- Average UV index in June: 6
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is February (UV index 3).
Average cloud cover in June
Port San Luis, CA
- Average cloud cover in June: 8
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 6).
Average visibility in June
Port San Luis, 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).





