April weather forecast
Saint Petersburg, FL

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Beautiful clear waterfront, scenic palm trees, and a straight road to St. Petersburg in Florida
Beautiful clear waterfront, scenic palm trees, and a straight road to St. Petersburg in Florida

Weather in April

Saint Petersburg, Florida, witnesses a noticeable transformation in its weather throughout April. Compared to March, the warming continues, evidenced by extended sunshine hours. Summing to the agreeable conditions, the sea temperature demonstrates a significant increment, heralding the beach season. Though the humidity metric remains stable, evaporation rates are likely to rise in stride with the temperature, subtly altering local vegetation. The exceptional element in April's weather concerns the rainfall, with a substantial rise to 1.22in, the first noteworthy surge of the year.

Temperature

A subtle rise in the average high-temperature is observed during April, adjusting from 73.6°F (23.1°C) in March to a still warm 79.9°F (26.6°C). During the nights in April, the temperature averages to a refreshing 67.5°F (19.7°C).

Humidity

In Saint Petersburg, the average relative humidity in April is 72%.

Rainfall

In April, the rain falls for 11.7 days. Throughout April, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 172.1 rainfall days, and 27.2" (691mm) of precipitation is accumulated.

Ocean temperature

In Saint Petersburg, Florida, in April, the average water temperature is 73°F (22.8°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73°F (22.8°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

In April, the average length of the day is 12h and 50min.
On the first day of the month, sunrise is at 7:19 am and sunset at 7:48 pm. On the last day of April, sunrise is at 6:51 am and sunset at 8:04 pm EDT.

Sunshine

The average sunshine in April in Saint Petersburg is 9.6h.

UV index

In April, the average daily maximum UV index in Saint Petersburg is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in April converts into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heed this! UV intensity is much stronger when reflected off sand and water.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

During April, Saint Petersburg experiences an average high-temperature of 79.9°F (26.6°C) and a low-temperature of 67.5°F (19.7°C).

What is the average humidity in April?

In April, the average relative humidity is 72%.

How many days does it rain in April?

In April, the rain falls for 11.7 days. Throughout April, 1.22" (31mm) of precipitation is accumulated.

What is the ocean temperature in April?

In Saint Petersburg, the average seawater temperature in April is 73°F (22.8°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 73°F (22.8°C).

What is the average length of the day in April?

The average day length in April is 12h and 50min.

What time are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 7:19 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:04 pm EDT.

How long on average sun shines in April?

The average sunshine duration in April is 9.6h.

What is the UV index intensity in April?

In April, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high 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
Saint Petersburg, FL

Average temperature in April - Saint Petersburg, FL
  • Average high temperature in April: 79.9°F

The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (67.6°F).

  • Average low temperature in April: 67.5°F

The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (55.2°F).

Average pressure in April
Saint Petersburg, FL

Average pressure in April - Saint Petersburg, FL
  • Average pressure in April: 30.02"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in April
Saint Petersburg, FL

Average wind speed in April - Saint Petersburg, FL
  • Average wind speed in April: 8.6mph

The windiest months (with the highest average wind speed) are January, March, October and November (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in April
Saint Petersburg, FL

Average humidity in April - Saint Petersburg, FL
  • Average humidity in April: 72%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is May (71%).

Average rainfall in April
Saint Petersburg, FL

Average rainfall in April - Saint Petersburg, FL
  • Average rainfall in April: 1.22"

The wettest month (with the highest rainfall) is July (5.24").
The driest months (with the least rainfall) are February and November (0.75").

Average rainfall days in April
Saint Petersburg, FL

Average rainfall days in April - Saint Petersburg, FL
  • Average rainfall days in April: 11.7 days

The month with the highest number of rainy days is July (26.2 days).
The month with the least rainy days is November (7 days).

Average sea temperature in April
Saint Petersburg, FL

Average sea temperature in April - Saint Petersburg, FL
  • Average sea temperature in April: 73°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).

Average daylight in April /
Average sunshine in April
Saint Petersburg, FL

Average daylight in April / Average sunshine in April - Saint Petersburg, FL
  • Average daylight in April: 12h and 5min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in April: 9h and 4min

The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in April
Saint Petersburg, FL

Average sunshine days in April - Saint Petersburg, FL
  • Average sunshine days in April: 16 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is July (3.1 days).

Average UV index in April
Saint Petersburg, FL

Average UV index in April - Saint Petersburg, FL
  • Average UV index in April: 6

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in April
Saint Petersburg, FL

Average cloud cover in April - Saint Petersburg, FL
  • Average cloud cover in April: 23

The month with the most cloud cover is December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 21).

Average visibility in April
Saint Petersburg, FL

Average visibility in April - Saint Petersburg, FL
  • 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).

Saint Petersburg, Florida, USA

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