March weather forecastBay Saint Louis, MS
March
Weather in March
The advent of March signals the transition from winter to spring in Bay Saint Louis, Mississippi. Weather conditions tend to be quite pleasant, with an underlying coolness to the air. Although temperatures continue to rise, precipitation is still relatively high, making for a humid month. With an average UV index of 5, it is vital to remember sun protection when outside. The upward trend in sea temperature continues, allowing for more water-related ventures at 63.3°F (17.4°C).Temperature
Bay Saint Louis's transition into March brings a slight rise in the average high-temperature, moving from an enjoyable 63.1°F (17.3°C) in February to a pleasant 69.4°F (20.8°C). March nights in Bay Saint Louis, Mississippi, observe an average temperature dip to a refreshing 56.8°F (13.8°C).Humidity
The average relative humidity in March is 76%.Rainfall
The month with the least rainfall is March, when the rain falls for 10.5 days and typically collects 0.51" (13mm) of precipitation.Snowfall
In Bay Saint Louis, snow does not fall in February through December.Ocean temperature
In March, the average ocean temperature is 63.3°F (17.4°C).Note: For most, swimming in 63.3°F (17.4°C) is not a pleasant experience. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), controlling one's breathing becomes more difficult.
Daylight
In March, the average length of the day is 12h and 1min.On the first day of the month, sunrise is at 6:22 am and sunset at 5:56 pm CST. On the last day of March, sunrise is at 6:46 am and sunset at 7:15 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
In March, the average sunshine is 7.9h.UV index
In March, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during March, leads to the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Bay Saint Louis, MS
- Average high temperature in March: 69.4°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 March: 56.8°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).
Average pressure in March
Bay Saint Louis, MS
- Average pressure in March: 30.09"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).
Average wind speed in March
Bay Saint Louis, MS
- Average wind speed in March: 8.7mph
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).
Average humidity in March
Bay Saint Louis, MS
- Average humidity in March: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in March
Bay Saint Louis, MS
- Average rainfall in March: 0.51"
The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is March (0.51").
Average rainfall days in March
Bay Saint Louis, MS
- Average rainfall days in March: 10.5 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).
Average snowfall days in March
Bay Saint Louis, MS
- Average snowfall days in March: 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).
Average sea temperature in March
Bay Saint Louis, MS
- Average sea temperature in March: 63.3°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).
Average daylight in March /
Average sunshine in March
Bay Saint Louis, MS
- Average daylight in March: 12h and 0min
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 March: 7h and 54min
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).
Average sunshine days in March
Bay Saint Louis, MS
- Average sunshine days in March: 18.5 days
The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is August (8 days).
Average UV index in March
Bay Saint Louis, MS
- Average UV index in March: 5
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).
Average cloud cover in March
Bay Saint Louis, MS
- Average cloud cover in March: 35
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 23).
Average visibility in March
Bay Saint Louis, MS
- Average visibility in March: 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).





