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
Tustin observes an average high-temperature of an agreeable 68.7°F (20.4°C) in April, barely different from 66.2°F (19°C) in March. An average minimum temperature of 54.1°F (12.3°C) is recorded during the month of April.Humidity
In Tustin, the average relative humidity in April is 65%.Rainfall
In Tustin, in April, it is raining for 5.6 days, with typically 0.35" (9mm) of accumulated precipitation. Throughout the year, there are 51.9 rainfall days, and 4.13" (105mm) of precipitation is accumulated.Daylight
In April, the average length of the day is 13h and 3min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:12 pm. On the last day of April, sunrise is at 6:02 am and sunset at 7:34 pm PDT.
Sunshine
The average sunshine in April in Tustin is 11h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in April leads to these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Tustin?
What is the average humidity in April in Tustin?
How many days does it rain in April in Tustin?
What is the average length of the day in April in Tustin?
When are sunrise and sunset in April in Tustin?
How many hours of sunshine does Tustin have in April?
How high is the UV index in April in Tustin?
Average temperature in April
Tustin, CA
- Average high temperature in April: 68.7°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 (63.1°F).
- Average low temperature in April: 54.1°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is February (50.7°F).
Average pressure in April
Tustin, CA
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Tustin, CA
- Average wind speed in April: 6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.8mph).
Average humidity in April
Tustin, CA
- Average humidity in April: 65%
The month with the highest relative humidity is June (70%).
The month with the lowest relative humidity is November (55%).
Average rainfall in April
Tustin, CA
- Average rainfall in April: 0.35"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
Tustin, CA
- Average rainfall days in April: 5.6 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).
Average daylight in April /
Average sunshine in April
Tustin, CA
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in April
Tustin, CA
- Average sunshine days in April: 21.7 days
The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in April
Tustin, CA
- Average UV index in April: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in April
Tustin, CA
- Average cloud cover in April: 20
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in April
Tustin, 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).
Tustin, California, USA
Weather forecast for your location
2. Allow the app to use your location