The best times to visit St Louis for ideal weather are
January 1st to May 6th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
St Louis Travel Guide
Other St Louis Travel Info
Weather in St Louis
Average temperatures in St Louis vary little. Considering humidity, temperatures feel hot for most of the year with a very low chance of rain throughout the year. The area is less temperate than some — in the 37th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit St Louis, the hottest months are September, October, and then August. See average monthly temperatures below. The warmest time of year is generally early October where highs are regularly around 97.9°F (36.6°C) with temperatures rarely dropping below 78.4°F (25.8°C) at night.
St Louis Temperatures (Fahrenheit)
St Louis Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
St Louis Perceived Temperature (F)
St Louis Perceived Temperature (C)
Average St Louis Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in St Louis are April, May, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early September with an average of 2 days of significant precipitation the week of September 3rd.
When can you find snow in St Louis? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in St Louis.
Snow on the Ground
The graph below shows the average snow on the ground in St Louis (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
St Louis has some very humid months, and slightly dry months in the opposite season. The least humid month is January (38.8% relative humidity), and the most humid month is September (78.7%).
Wind in St Louis is usually calm. The windiest month is April, followed by May and March. April’s average wind speed of around 8.3 knots (9.6 MPH or 15.4 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid April where average top sustained speeds reach 13 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in St Louis.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||6.4||Light breeze||10.2||Gentle breeze|
|Feb||7.1||Gentle breeze||11||Significant breeze|
|Mar||7.8||Gentle breeze||11.7||Gentle breeze|
|Apr||8.3||Gentle breeze||12.2||Significant breeze|
|May||7.9||Gentle breeze||12.1||Gentle breeze|
|Jun||6.9||Light breeze||11||Significant breeze|
|Jul||6.4||Light breeze||10.6||Gentle breeze|
|Aug||5.7||Light breeze||10.1||Gentle breeze|
|Sep||5||Light breeze||9.2||Gentle breeze|
|Oct||5.7||Light breeze||9.8||Gentle breeze|
|Nov||5.7||Light breeze||9.2||Gentle breeze|
|Dec||5.8||Light breeze||9.4||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to St Louis?
Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for Senegal; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in St Louis, Senegal is January, followed by December and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit St Louis in July. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall St Louis Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 92.6°F (33.7°C) and 86.3°F (30.2°C) with similar temperatures in the later months. Rain is nonexistent with roughly 0 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 0 to 8 days of precipitation per month. June – August is the slowest season for tourism in St Louis, so lodging and other accommodations may cost less than usual.
Fall (September through November)
Fall daily highs range from 97.9°F (36.6°C) and 90.8°F (32.7°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 0 to 7 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Winter (December through February)
Weather is perfect this time of year in St Louis to be enjoyable for warm weather travelers. The average high during this season is between 92.6°F (33.7°C) and 87.5°F (30.8°C). On average, it rains or snows a insignificant amount: consistently 0 times per month. These times of year are the busiest with tourists.