June weather forecastSwansea, CA
June
Weather in June
June, the first month of the summer in Swansea, is a moderately hot month, with an average temperature varying between 62.6°F (17°C) and 81°F (27.2°C).Temperature
The rise of average high-temperatures is seen in June, with an increase from a pleasant 68.9°F (20.5°C) in May to a warm 81°F (27.2°C). During June, Swansea consistently records a temperature low averaging a refreshing 62.6°F (17°C).Humidity
In June, the average relative humidity is 20%.Rainfall
June and September are months with the least rain when the rain falls for 2.7 days and typically aggregates up to 0.16" (4mm) of rain.Snowfall
In Swansea, snow does not fall in May through October.Daylight
June has the longest days of the year, with an average of 14h and 36min of daylight.On the first day of June, sunrise is at 5:34 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:13 pm PDT.
Sunshine
The month with the most sunshine is June, with an average of 12.2h of sunshine.UV index
In Swansea, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in June transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. 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
Swansea, CA
- Average high temperature in June: 81°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in June: 62.6°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).
Average pressure in June
Swansea, CA
- Average pressure in June: 29.83"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in June
Swansea, CA
- Average wind speed in June: 7.6mph
The windiest months (with the highest average wind speed) are April, May and June (7.6mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity in June
Swansea, CA
- Average humidity in June: 20%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (19%).
Average rainfall in June
Swansea, CA
- Average rainfall in June: 0.16"
The wettest month (with the highest rainfall) is December (0.67").
The driest months (with the least rainfall) are June and September (0.16").
Average rainfall days in June
Swansea, CA
- Average rainfall days in June: 2.7 days
The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is September (2.3 days).
Average snowfall in June
Swansea, CA
- Average snowfall in June: 0"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Swansea, CA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Swansea, CA
- Average daylight in June: 14h and 36min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in June: 12h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 18min).
Average sunshine days in June
Swansea, CA
- Average sunshine days in June: 24.7 days
The month with the most sunshine days is October (27.7 days).
The month with the least sunshine days is July (20 days).
Average UV index in June
Swansea, CA
- Average UV index in June: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in June
Swansea, CA
- Average cloud cover in June: 6
The month with the most cloud cover is January (Cloud cover 16).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in June
Swansea, 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).
