Bay Saint Louis (MS) Temperature by Month
Bay Saint Louis in Mississippi, United States of America sees significant seasonal temperature differences, with daytime highs between 16°C (61°F) in January and 32°C (90°F) in August, averaging 25°C (77°F) annually. Explore the full monthly breakdown below.
Bay Saint Louis Monthly Temperatures
The weather in Bay Saint Louis experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 24°C (75°F) in August to 5°C (41°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Bay Saint Louis by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Bay Saint Louis vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Bay Saint Louis vs World: Temperature Compared
Bay Saint Louis's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Bay Saint Louis's weather, including monthly rainfall, sunshine hours, and humidity, visit our Bay Saint Louis climate page.
