April weather forecast
Carlsbad, CA

Share
The skyline and clear coastline of Carlsbad in California
The skyline and clear coastline of Carlsbad in California

Weather in April

April in Carlsbad is pleasing with stable, consistent weather conditions. Daily hours of sunshine rise, complemented by slightly longer days. The relative humidity remains steady from March, allowing for comfortable weather conditions. Remarkably, this month records a decreased rainfall of only 0.71" (18mm), prompting some drought concerns. However, the slight increase in sea temperature encourages more beach activities.

Temperature

A minor adjustment in Carlsbad's average high-temperature is noted with the start of April, touching a still comfortable 66.7°F (19.3°C) from March's 64.6°F (18.1°C). Throughout April, the average low-temperature records at a fresh 52.7°F (11.5°C).

Humidity

The average relative humidity in April in Carlsbad is 69%.

Rainfall

In Carlsbad, California, in April, it is raining for 6.8 days, with typically 0.71" (18mm) of accumulated precipitation. In Carlsbad, during the entire year, the rain falls for 68.2 days and collects up to 9.49" (241mm) of precipitation.

Ocean temperature

In April, the average ocean temperature is 60.4°F (15.8°C).
Note: For the majority, swimming in 60.4°F (15.8°C) does not offer a pleasant experience. Below 69.8°F (21°C), the difficulty in controlling breathing escalates.

Daylight

In April, the average length of the day is 13h and 2min.
On the first day of April, sunrise is at 6:35 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:31 pm PDT.

Sunshine

In Carlsbad, the average sunshine in April is 10.9h.

UV index

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during April leads to these advisories:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Carlsbad in April?

In Carlsbad, 66.7°F (19.3°C) is the average high-temperature and 52.7°F (11.5°C) is the average low-temperature during April.

What is the average humidity in April?

The average relative humidity in April is 69%.

How many days does it rain in April?

In Carlsbad, in April, during 6.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

What is the ocean temperature in April?

In Carlsbad, the average seawater temperature in April is 60.4°F (15.8°C). For swimming, a surface water temperature of 60.4°F (15.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in April?

The average day length in April is 13h and 2min.

When are sunrise and sunset in April in Carlsbad?

In April, on the first day of the month, sunrise is at 6:35 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:31 pm PDT.

How long on average sun shines in April?

The average sunshine duration in April is 10.9h.

How high is the UV index in April?

In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Carlsbad, CA

Average temperature in April - Carlsbad, CA
  • Average high temperature in April: 66.7°F

The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in April: 52.7°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

Average pressure in April
Carlsbad, CA

Average pressure in April - Carlsbad, CA
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).

Average wind speed in April
Carlsbad, CA

Average wind speed in April - Carlsbad, CA
  • Average wind speed in April: 6mph

The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).

Average humidity in April
Carlsbad, CA

Average humidity in April - Carlsbad, CA
  • Average humidity in April: 69%

The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (60%).

Average rainfall in April
Carlsbad, CA

Average rainfall in April - Carlsbad, CA
  • Average rainfall in April: 0.71"

The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is June (0.12").

Average rainfall days in April
Carlsbad, CA

Average rainfall days in April - Carlsbad, CA
  • Average rainfall days in April: 6.8 days

The month with the highest number of rainy days is March (8 days).
The month with the least rainy days is June (2.7 days).

Average sea temperature in April
Carlsbad, CA

Average sea temperature in April - Carlsbad, CA
  • Average sea temperature in April: 60.4°F

The best month for swimming (with the highest average sea temperature) is August (68°F).
The coldest months (with the lowest average sea temperature) are January and February (58.7°F).

Average daylight in April /
Average sunshine in April
Carlsbad, CA

Average daylight in April / Average sunshine in April - Carlsbad, CA
  • Average daylight in April: 13h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in April: 10h and 5min

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 36min).

Average sunshine days in April
Carlsbad, CA

Average sunshine days in April - Carlsbad, CA
  • Average sunshine days in April: 21.1 days

The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is February (20 days).

Average UV index in April
Carlsbad, CA

Average UV index in April - Carlsbad, CA
  • Average UV index in April: 5

The months with the highest UV index are 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
Carlsbad, CA

Average cloud cover in April - Carlsbad, CA
  • Average cloud cover in April: 22

The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 8).

Average visibility in April
Carlsbad, CA

Average visibility in April - Carlsbad, 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).

Carlsbad, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location