Saint-Louis Temperature by Month

Saint-Louis in Senegal enjoys a stable climate, with daytime temperatures staying close to 30°C (86°F) throughout the year. Explore the full monthly breakdown below.

In Saint-Louis temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 28°C (82°F) in January to a very warm 33°C (91°F) in October. Nighttime lows range from 26°C (79°F) in October to 19°C (66°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Saint-Louis by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. October, the city's warmest month, gets 260 hours of sunshine.

The chart below shows the average temperature throughout the year:

Saint-Louis's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Saint-Louis, January is the coolest month, with average highs of 28°C (82°F) and humidity around 44%, considered moderate. In October, the warmest month, temperatures average 33°C (91°F) with 71% humidity, conditions that feel high. For a full picture, see our humidity page.

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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Saint-Louis's weather, including monthly rainfall, sunshine hours, and humidity, visit our Saint-Louis climate page.