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 sea temperature 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
Entering April, Rio del Mar's average high-temperature reads a comfortable 63.1°F (17.3°C), indicating a close resemblance to the previous month's climate. Rio del Mar observes an average nighttime low-temperature of 47.3°F (8.5°C) during the month of April.Humidity
In Rio del Mar, the average relative humidity in April is 73%.Rainfall
In Rio del Mar, during April, the rain falls for 9 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 77.9 rainfall days, and 14.45" (367mm) of precipitation is accumulated.Ocean temperature
The month with the coldest seawater is April, with an average ocean temperature of 53.8°F (12.1°C).Note: Immersing oneself in 53.8°F (12.1°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
The average length of the day in April in Rio del Mar is 13h and 10min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:30 pm. On the last day of April, in Rio del Mar, sunrise is at 6:13 am and sunset at 7:56 pm PDT.
Sunshine
The average sunshine in April in Rio del Mar is 10h.UV index
In April, the average daily maximum UV index in Rio del Mar is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, a daily UV index of 4 turns into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rio del Mar in April?
What is the average humidity in April in Rio del Mar?
How many days does it rain in April in Rio del Mar?
When is the ocean coldest in Rio del Mar?
What is the water temperature in April in Rio del Mar?
How many hours of daylight does Rio del Mar have in April?
When is the sunrise / sunset in April in Rio del Mar?
How many hours of sunshine does Rio del Mar have in April?
How high is the UV index in April in Rio del Mar?
Average temperature in April
Rio del Mar, CA
- Average high temperature in April: 63.1°F
The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in April: 47.3°F
The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in April
Rio del Mar, CA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in April
Rio del Mar, CA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in April
Rio del Mar, CA
- Average humidity in April: 73%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in April
Rio del Mar, CA
- Average rainfall in April: 0.94"
The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Rio del Mar, CA
- Average rainfall days in April: 9 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).
Average sea temperature in April
Rio del Mar, CA
- Average sea temperature in April: 53.8°F
The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).
Average daylight in April /
Average sunshine in April
Rio del Mar, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in April
Rio del Mar, CA
- Average sunshine days in April: 19.9 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).
Average UV index in April
Rio del Mar, CA
- Average UV index in April: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and November (UV index 3).
Average cloud cover in April
Rio del Mar, CA
- Average cloud cover in April: 30
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility in April
Rio del Mar, 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).
Rio del Mar, California, USA
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