January: the best month of the year in Saint-Louis
Best window · 8.7/10At 24°C (75°F) this is comfortable city weather in January, with sightseeing easiest before lunch and after the afternoon peak.
At just 0 mm for the month, rain will not shape your plans; you get about 19 days with 6+ hours of sunshine and 11.1 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Saint-Louis at 8.7/10 — the reference point every other month on this page is measured against.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection.
February in Saint-Louis — one of the year's strongest windows (2nd)
Best window · 8.7/10At 25°C (76°F) this is comfortable city weather in February, with sightseeing easiest before lunch and after the afternoon peak.
At just 0 mm for the month, rain will not shape your plans; you get about 22 days with 6+ hours of sunshine and 11.5 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Saint-Louis at 8.7/10 (2nd of 12), just behind January at 8.7/10.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection.
March in Saint-Louis: strong conditions, 4th of 12
Good · 8.4/10March averages 25°C (78°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rain is a non-issue at 0 mm for the month, with about 31 days with 6+ hours of sunshine and 11.9 hours of daylight to work with.
It scores 8.4/10 here, 4th of 12 months, against 8.7/10 in the destination's best month.
Plan for peak pricing, with this is one of the busiest months here.
Pack light clothing, a hat and real sun protection.
April in Saint-Louis — reliably good (5th best month)
Good · 8/10Days in April average 27°C (80°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
At just 0 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 12.4 hours of daylight.
That is 8/10 on the same scale — 5th of 12 months, versus 8.7/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
May holds up well in Saint-Louis — 7th best month
Good · 7.2/10May averages 28°C (83°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 0 mm for the month, with about 31 days with 6+ hours of sunshine and 12.7 hours of daylight to work with.
It scores 7.2/10 here, 7th of 12 months, against 8.7/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
June in Saint-Louis: mixed conditions, plan around the weather
Trade-offs · 6.9/10Days in June average 29°C (84°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
At just 9 mm for the month, rain will not shape your plans; you get about 29 days with 6+ hours of sunshine and 12.9 hours of daylight.
That is 6.9/10 on the same scale — 8th of 12 months, versus 8.7/10 for the best month here.
Budget for mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
If your dates are flexible, January is materially better in Saint-Louis — 1.8 points higher on the same scale.
July in Saint-Louis — off-season conditions
Hardest · 4.7/10Days in July average 29°C (84°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
129 mm of rain makes this a wet month here, though with about 26 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 4.7/10 on the same scale — 10th of 12 months, versus 8.7/10 for the best month here.
Expect low-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, January is materially better in Saint-Louis — 4 points higher on the same scale.
August in Saint-Louis — off-season conditions
Hardest · 4.1/10August averages 29°C (84°F) and humidity near 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 160 mm — wet for this destination — but about 27 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4.1/10 here, 12th of 12 months, against 8.7/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Flexible dates? January scores 4.6 points higher here — enough to change the trip.
September in Saint-Louis: expect compromises
Hardest · 4.7/10September averages 29°C (83°F) and humidity near 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 119 mm — wet for this destination — but about 25 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4.7/10 here, 11th of 12 months, against 8.7/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Flexible dates? January scores 4 points higher here — enough to change the trip.
October in Saint-Louis — workable with trade-offs
Trade-offs · 6.6/10Days in October average 29°C (84°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
With around 28 mm of rain, any showers tend to pass through rather than settle in; about 24 days with 6+ hours of sunshine and 11.6 hours of daylight fill the rest.
That is 6.6/10 on the same scale — 9th of 12 months, versus 8.7/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
If your dates are flexible, January is materially better in Saint-Louis — 2.1 points higher on the same scale.
November holds up well in Saint-Louis — 6th best month
Good · 7.8/10Days in November average 27°C (80°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
At just 0 mm for the month, rain will not shape your plans; you get about 22 days with 6+ hours of sunshine and 11.2 hours of daylight.
That is 7.8/10 on the same scale — 6th of 12 months, versus 8.7/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
December is one of the strongest months in Saint-Louis (3rd)
Best window · 8.6/10December averages 24°C (75°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rain is a non-issue at 3 mm for the month, with about 19 days with 6+ hours of sunshine and 11.1 hours of daylight to work with.
A 8.6/10 puts this among the year's best months in Saint-Louis (3rd of 12); only January scores higher, at 8.7/10.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection.
