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Bay Saint Louis (MS) Weather and Climate: A Comprehensive Guide

The temperature in Bay Saint Louis can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and mild during the cooler months. It also experiences much rainfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

Visitors to Bay Saint Louis can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 32°C in August. In January, the coolest month of the year, temperatures drop to a moderate 16°C.

At night, you can expect cooler temperatures, with averages dropping to around 5°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Bay Saint Louis is known for its substantial rainfall, with annual precipitation reaching 1607 mm. Bay Saint Louis can be quite wet during August, receiving approximately 191 mm of precipitation over 18 rainy days.

In contrast November, experiences much drier conditions, with 73 mm of rainfall, spread across 7 rainy days. For more details, please visit our Bay Saint Louis Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Bay Saint Louis (MS)

Sat   Dec 21
12°C | 1°C
N 6 m/s
clear and no rain

clear and no rain

Sun   Dec 22
14°C | 0°C
NE 4 m/s
clear and no rain

clear and no rain

Mon   Dec 23
19°C | 2°C
E 4 m/s
clear and no rain

clear and no rain

The best time of year to visit Bay Saint Louis in the United States of America

During the months of March, April, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Bay Saint Louis?
    Most rainfall (rainy season) is seen in April, July, August and December.
  • Which is the warmest month in Bay Saint Louis?
    August has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Bay Saint Louis?
    The coldest month is January with an average maximum temperature of 16°C.
  • Which is the wettest month in Bay Saint Louis?
    August tops the wettest month list with 191 mm of rainfall.
  • Which is the driest month in Bay Saint Louis?
    November is the driest month with 73 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.