Bay St. Louis, MS Weather


Reviews



Download our custom City Report to see exclusive
data on cost of living, crime, climate, and more.

The most pleasant months of the year for Bay St. Louis are October, April and May. In Bay St. Louis, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Bay St. Louis with an average high temperature of 89.5°, which ranks it as one of the coolest places in Mississippi. Any measurable snowfall is a rare occurance in Bay St. Louis. The most uncomfortably humid months are August, July and June.

Today's Weather - Bay St. Louis, MS

9 PM PST

Mostly Cloudy then Patchy Fog

72°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightMostly Cloudy then Patchy Fog69° / 82°SW 5 mph
Saturday NightChance Showers And Thunderstorms61° / 68°E 5 to 10 mph
Sunday NightRain Showers Likely then Partly Cloudy50° / 73°N 10 to 15 mph
Monday NightMostly Clear53° / 77°NE 5 mph
Tuesday NightClear59° / 80°SE 0 to 10 mph
Wednesday NightMostly Clear61° / 82°SE 0 to 10 mph
Thursday NightPartly Cloudy65° / 81°SE 5 to 10 mph

Weather Highlights

Summer High: the July high is around 90 degrees
Winter Low: the January low is 40
Rain: averages 64 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Bay St. Louis area is 4.2 (10=best), which means it is less comfortable than most places in Mississippi.

4.2 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January60° 40°
February63° 44°
March69° 49°
April75° 56°
May82° 65°
June87° 71°
July90° 73°
August89° 73°
September86° 68°
October78° 58°
November69° 49°
December62° 42°
Hot, Freezing, Rainy, Snowy Days: Bay St. Louis
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0890
February0380
March0170
April0060
May1060
June70110
July140130
August140120
September5090
October0060
November0270
December0680

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Schools
Compare Bay St. Louis, MS
cost of living
Compare food, housing, utilities, and more in Bay St. Louis, Mississippi to any other city in the US.