April weather forecastPort San Luis, CA
April
Weather in April
April, the same as March, is another enjoyable spring month in Port San Luis, California, with an average temperature ranging between max 67.8°F (19.9°C) and min 48.2°F (9°C).Temperature
Port San Luis's weather, upon April's arrival, documents an average high-temperature of a still comfortable 67.8°F (19.9°C), nearly identical to the prior month. Port San Luis observes an average nighttime temperature of 48.2°F (9°C) during April.Humidity
In Port San Luis, the average relative humidity in April is 65%.Rainfall
In Port San Luis, during April, the rain falls for 6.8 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 57 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Daylight
In April, the average length of the day is 13h and 6min.On the first day of April, sunrise is at 6:48 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:48 pm PDT.
Sunshine
The average sunshine in April is 10.8h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 5 in April transforms into this advice:
Ensure safety - Recommendations to avert sunburn are presented. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Port San Luis, CA
- Average high temperature in April: 67.8°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 April: 48.2°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 April
Port San Luis, CA
- Average pressure in April: 30.02"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 April
Port San Luis, CA
- Average wind speed in April: 6.8mph
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 April
Port San Luis, CA
- Average humidity in April: 65%
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 April
Port San Luis, CA
- Average rainfall in April: 0.63"
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 April
Port San Luis, CA
- Average rainfall days in April: 6.8 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 April /
Average sunshine in April
Port San Luis, CA
- Average daylight in April: 13h and 6min
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 April: 10h and 48min
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 April
Port San Luis, CA
- Average sunshine days in April: 22.3 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 April
Port San Luis, CA
- Average UV index in April: 5
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 April
Port San Luis, CA
- Average cloud cover in April: 20
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 April
Port San Luis, 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).
