April weather forecast
Culebra, PR

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Weather in April

Culebra weather in April witnesses a rise in both land and sea temperatures. Such increases make for warm evenings and prime conditions for late-night beach walks. As temperatures rise, so does the humidity, resulting in the occasional heavier rainfall of 1.5" (38mm) during this month. April also brings more daylight, extending the day to 12.6 hours. Furthermore, strong winds are less frequent, with an average wind speed of 13.2mph (21.2km/h), creating a more enjoyable outdoor environment.

Temperature

Upon the onset of April, Culebra witnesses an average high-temperature of a still moderately hot 79.5°F (26.4°C), showing a close resemblance to the prior month. April's average low-temperature is a still warm 76.8°F (24.9°C), reflecting a minor difference from the day's peak temperatures.

Humidity

In Culebra, the average relative humidity in April is 76%.

Rainfall

In April, in Culebra, the rain falls for 18.3 days. Throughout April, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 253.1 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

Ocean temperature

In Culebra, in April, the average water temperature is 80.6°F (27°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In April, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 6:14 am and sunset at 6:34 pm. On the last day of April, in Culebra, sunrise is at 5:54 am and sunset at 6:42 pm AST.

Sunshine

In April, the average sunshine is 9.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In April, an average UV index of 7 transforms into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Alert! UV radiation becomes sharper due to reflections from sand and water.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

During April, Culebra experiences an average high-temperature of 79.5°F (26.4°C) and a low-temperature of 76.8°F (24.9°C).

What is the average humidity in April in Culebra?

In April, the average relative humidity is 76%.

How much does it rain in April?

In Culebra, in April, it is raining for 18.3 days, with typically 1.5" (38mm) of accumulated precipitation.

What is the ocean temperature in April?

In April, the average ocean temperature is 80.6°F (27°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in April?

The average day length in April is 12h and 34min.

When is the sunrise / sunset in April?

On the first day of April, sunrise is at 6:14 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 6:42 pm AST.

How long on average sun shines in April?

The average sunshine duration in April is 9.3h.

When is the highest UV index?

The months with the highest UV index are January through December, with an average maximum UV index of 7.

What are the months with the lowest UV index?

The months with the lowest UV index in Culebra are January through December, with an average maximum UV index of 7.

What is the UV index intensity in April in Culebra?

The average daily maximum UV index in April is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in April
Culebra, PR

Average temperature in April - Culebra, PR
  • Average high temperature in April: 79.5°F

The warmest month (with the highest average high temperature) is September (84°F).
The month with the lowest average high temperature is March (78.4°F).

  • Average low temperature in April: 76.8°F

The month with the highest average low temperature is October (81.5°F).
The coldest month (with the lowest average low temperature) is March (75.7°F).

Average pressure in April
Culebra, PR

Average pressure in April - Culebra, PR
  • Average pressure in April: 29.99"Hg

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The months with the lowest atmospheric pressure are October and November (29.91"Hg).

Average wind speed in April
Culebra, PR

Average wind speed in April - Culebra, PR
  • Average wind speed in April: 13.2mph

The windiest month (with the highest average wind speed) is July (15mph).
The calmest month (with the lowest average wind speed) is October (11.1mph).

Average humidity in April
Culebra, PR

Average humidity in April - Culebra, PR
  • Average humidity in April: 76%

The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are January, February, March, October, November and December (75%).

Average rainfall in April
Culebra, PR

Average rainfall in April - Culebra, PR
  • Average rainfall in April: 1.5"

The wettest month (with the highest rainfall) is September (4.45").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in April
Culebra, PR

Average rainfall days in April - Culebra, PR
  • Average rainfall days in April: 18.3 days

The month with the highest number of rainy days is November (25.5 days).
The months with the least rainy days are February, March and June (18.2 days).

Average sea temperature in April
Culebra, PR

Average sea temperature in April - Culebra, PR
  • Average sea temperature in April: 80.5°F

The best month for swimming (with the highest average sea temperature) is September (84.9°F).
The coldest month (with the lowest average sea temperature) is February (78.7°F).

Average daylight in April /
Average sunshine in April
Culebra, PR

Average daylight in April / Average sunshine in April - Culebra, PR
  • Average daylight in April: 12h and 4min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in April: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

Average sunshine days in April
Culebra, PR

Average sunshine days in April - Culebra, PR
  • Average sunshine days in April: 7.3 days

The months with the most sunshine days are March and April (7.3 days).
The month with the least sunshine days is November (2.4 days).

Average UV index in April
Culebra, PR

Average UV index in April - Culebra, PR
  • Average UV index in April: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in April
Culebra, PR

Average cloud cover in April - Culebra, PR
  • Average cloud cover in April: 35

The months with the most cloud cover are May and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 33).

Average visibility in April
Culebra, PR

Average visibility in April - Culebra, PR
  • 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).

Culebra, Puerto Rico, USA

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