April weather forecast
Bay Saint Louis, MS

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Weather in April

April exhibits a significant leap in temperatures in comparison to March in Bay Saint Louis, Mississippi. This sees the city firmly lodged in the spring season with abundant flora. The weather is characterized by longer, sunnier days along with an increase in daily sunlight hours. April ushers in the start of regular temperatures above 60°F (15.6°C), making it an excellent time for outdoor activities. With the longest daily sunshine hours of 10.1, there is ample opportunity to explore the city's delights.

Temperature

With the onset of April, Bay Saint Louis experiences a subtle temperature shift, with the average high-temperature moving from a pleasant 69.4°F (20.8°C) in March to a warm 75.6°F (24.2°C). The temperature lowers to an average of 62.8°F (17.1°C) during April nights.

Humidity

The average relative humidity in April in Bay Saint Louis is 74%.

Rainfall

In Bay Saint Louis, in April, during 7.5 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Bay Saint Louis, there are 131.5 rainfall days, and 12.01" (305mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Bay Saint Louis.

Ocean temperature

In Bay Saint Louis, the average seawater temperature in April is 71.4°F (21.9°C).
Note: In water of 71.4°F (21.9°C), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in April is 12h and 56min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:16 pm. On the last day of April, in Bay Saint Louis, sunrise is at 6:14 am and sunset at 7:34 pm CDT.

Sunshine

In April, the average sunshine in Bay Saint Louis is 10.1h.

UV index

In April, the average daily maximum UV index in Bay Saint Louis is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 6 during April, leads to the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
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Frequently asked questions

What are the temperatures in Bay Saint Louis in April?

Bay Saint Louis in April has an average high-temperature of 75.6°F (24.2°C) and an average low-temperature of 62.8°F (17.1°C).

What is the average humidity in April in Bay Saint Louis?

In Bay Saint Louis, the average relative humidity in April is 74%.

How much does it rain in Bay Saint Louis in April?

In April, in Bay Saint Louis, the rain falls for 7.5 days. Throughout April, 0.59" (15mm) of precipitation is accumulated.

When it does not snow in Bay Saint Louis?

In Bay Saint Louis, Mississippi, snow does not fall in February through December.

How cold is the water in April in Bay Saint Louis?

In Bay Saint Louis, Mississippi, the average seawater temperature in April is 71.4°F (21.9°C). For swimming, a surface water temperature of 71.4°F (21.9°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 in Bay Saint Louis?

The average day length in April is 12h and 56min.

When is the sunrise / sunset in April in Bay Saint Louis?

On the first day of April in Bay Saint Louis, sunrise is at 6:45 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:34 pm CDT.

How many hours of sunshine does Bay Saint Louis have in April?

The average sunshine duration in April is 10.1h.

What is the UV index intensity in April in Bay Saint Louis?

In April, the average daily maximum UV index in Bay Saint Louis, Mississippi, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Bay Saint Louis, MS

Average temperature in April - Bay Saint Louis, MS
  • Average high temperature in April: 75.6°F

The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in April: 62.8°F

The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

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Average pressure in April
Bay Saint Louis, MS

Average pressure in April - Bay Saint Louis, MS
  • Average pressure in April: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in April
Bay Saint Louis, MS

Average wind speed in April - Bay Saint Louis, MS
  • Average wind speed in April: 8.9mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in April
Bay Saint Louis, MS

Average humidity in April - Bay Saint Louis, MS
  • Average humidity in April: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in April
Bay Saint Louis, MS

Average rainfall in April - Bay Saint Louis, MS
  • Average rainfall in April: 0.59"

The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is March (0.51").

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Average rainfall days in April
Bay Saint Louis, MS

Average rainfall days in April - Bay Saint Louis, MS
  • Average rainfall days in April: 7.5 days

The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is November (4.9 days).

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Average snowfall days in April
Bay Saint Louis, MS

Average snowfall days in April - Bay Saint Louis, MS
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average sea temperature in April
Bay Saint Louis, MS

Average sea temperature in April - Bay Saint Louis, MS
  • Average sea temperature in April: 71.5°F

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is January (56.8°F).

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Average daylight in April /
Average sunshine in April
Bay Saint Louis, MS

Average daylight in April / Average sunshine in April - Bay Saint Louis, MS
  • Average daylight in April: 12h and 5min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in April: 10h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in April
Bay Saint Louis, MS

Average sunshine days in April - Bay Saint Louis, MS
  • Average sunshine days in April: 20.6 days

The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is August (8 days).

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Average UV index in April
Bay Saint Louis, MS

Average UV index in April - Bay Saint Louis, MS
  • Average UV index in April: 6

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

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Average cloud cover in April
Bay Saint Louis, MS

Average cloud cover in April - Bay Saint Louis, MS
  • Average cloud cover in April: 30

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 23).

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Average visibility in April
Bay Saint Louis, MS

Average visibility in April - Bay Saint Louis, MS
  • 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).

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Bay Saint Louis, Mississippi, USA

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