Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
As Swansea welcomes April, the average high-temperature displays a subtle shift, adjusting from a cool 54.9°F (12.7°C) in March to an enjoyable 61.7°F (16.5°C). Swansea, in April, observes a steady average low-temperature of 44.2°F (6.8°C).Humidity
In Swansea, the average relative humidity in April is 31%.Rainfall
In Swansea, in April, during 5.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Swansea, during the entire year, the rain falls for 48 days and collects up to 4.92" (125mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows in Swansea. During 0.4 snowfall days, in April, Swansea aggregates 0.12" (3mm) of snow. Throughout the year, there are 4.5 snowfall days, and 3.07" (78mm) of snow is accumulated.Daylight
The average length of the day in April in Swansea is 13h and 9min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:14 pm. On the last day of April, in Swansea, sunrise is at 5:58 am and sunset at 7:39 pm PDT.
Sunshine
In Swansea, the average sunshine in April is 11.5h.UV index
In Swansea, California, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during April translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the temperature in April in Swansea?
What is the average humidity in April in Swansea?
How much does it rain in Swansea in April?
What is the last month it snows in Swansea?
How many hours of daylight does Swansea have in April?
When is the sunrise / sunset in April in Swansea?
How many hours of sunshine does Swansea have in April?
How high is the UV index in April in Swansea?
Average temperature in April
Swansea, CA
- Average high temperature in April: 61.7°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 April: 44.2°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 April
Swansea, CA
- Average pressure in April: 29.93"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 April
Swansea, CA
- Average wind speed in April: 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 April
Swansea, CA
- Average humidity in April: 31%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (19%).
Average rainfall in April
Swansea, CA
- Average rainfall in April: 0.51"
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 April
Swansea, CA
- Average rainfall days in April: 5.3 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 April
Swansea, CA
- Average snowfall in April: 0.12"
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 April
Swansea, CA
- Average snowfall days in April: 0.4 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 April /
Average sunshine in April
Swansea, CA
- Average daylight in April: 13h and 1min
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 April: 11h and 3min
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 April
Swansea, CA
- Average sunshine days in April: 22 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 April
Swansea, CA
- Average UV index in April: 4
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 April
Swansea, CA
- Average cloud cover in April: 13
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 April
Swansea, CA
- Average visibility in April: 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).
Swansea, California, USA
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