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 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 San Luis Obispo welcomes April, the average high-temperature is noted at a still enjoyable 67.8°F (19.9°C), closely aligning with the preceding month. Throughout April, San Luis Obispo witnesses a consistent average low-temperature of 48.2°F (9°C).Humidity
In April, the average relative humidity is 65%.Rainfall
In San Luis Obispo, during April, the rain falls for 6.8 days and regularly aggregates up to 0.63" (16mm) of precipitation. In San Luis Obispo, during the entire year, the rain falls for 57 days and collects up to 9.57" (243mm) of precipitation.Daylight
In April, the average length of the day in San Luis Obispo is 13h and 7min.On the first day of April, sunrise is at 6:47 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
In San Luis Obispo, the average sunshine in April is 10.8h.UV index
The average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 5 during April translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How much does it rain in April?
How many hours of daylight does San Luis Obispo have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does San Luis Obispo have in April?
How high is the UV index in April?
Average temperature in April
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, CA
- Average daylight in April: 13h and 1min
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 5min
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
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, 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
San Luis Obispo, 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).
San Luis Obispo, California, USA
Weather forecast for your location
2. Allow the app to use your location