Climate guide for Trou aux Biches, Mauritius

Best Time to Visit
Trou aux Biches

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01 · Mauritius

About Trou aux Biches

The reef keeps the water shallow and clear close to shore, and boat trips leave for the northern islets and Grand Baie's markets and restaurants. March, April, October and November fall in the island's transitional months, with warm sea and less of the winter trade wind. The west coast faces sunset, so the beach is at its best in the late afternoon.

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Did you know?

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Travel Tips

01Snorkeling with Sea Turtles
Swim out 100 meters to the inner lagoon reef break to spot green sea turtles feeding on sea grass.
02Shaded Casuarina Trees Spot
Claim a spot under casuarina trees on Trou aux Biches public beach for natural shade without renting umbrellas.
03Street Food Roti at Beach Gate
Buy hot Roti Aka (Mauritian flatbread stuffed with yellow split pea curry) from vendors at the beach entrance.

Things to do in Trou aux Biches

Trou aux Biches, Mauritius. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Trou aux Biches: the short answer

Plan Trou aux Biches for September, with October, November close behind — the stretch with the most usable temperatures and the fewest lost days to rain: September averages 23°C with 17 mm of rain and about 26 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are April, January. If budget matters more than perfect weather, June is the strongest of the low-rate months at 8.3/10.

Across the year Trou aux Biches swings from 23°C in August to 28°C in February, a 5-degree spread, while rainfall ranges from 17 mm in September to 136 mm in April. In short, Trou aux Biches is not equally good year-round — the gap between its best and worst month is 2.5 points on the same 10-point scale.

Warmest month: February (28°C). Coolest: August (23°C). Driest: September (17 mm). Wettest: April (136 mm).

Trou aux Biches month by month

January in Trou aux Biches: strong conditions, 11th of 12

Good · 8.1/10

Days in January average 27°C (81°F) and humidity near 79% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

128 mm of rain makes this a wet month here, though with about 31 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 8.1/10 on the same scale — 11th of 12 months, versus 9.8/10 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, a proper rain shell rather than an umbrella.

If your dates are flexible, September is materially better in Trou aux Biches — 1.7 points higher on the same scale.

February is one of the strongest months in Trou aux Biches (6th)

Best window · 8.6/10

Days in February average 28°C (82°F) and humidity near 78% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

Budget for roughly 89 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 12.7 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Trou aux Biches at 8.6/10 (6th of 12), just behind September at 9.8/10.

Expect mid-season pricing, and crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.

March in Trou aux Biches — reliably good (9th best month)

Good · 8.4/10

March averages 28°C (82°F) and humidity near 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 101 mm — wet for this destination — but about 28 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 8.4/10 here, 9th of 12 months, against 9.8/10 in the destination's best month.

Plan for mid-season pricing, with 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.

April holds up well in Trou aux Biches — 12th best month

Good · 7.3/10

Days in April average 27°C (81°F) and humidity near 80% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

136 mm of rain signals a properly wet month, with only about 18 days with 6+ hours of sunshine to count on — build indoor options into the schedule.

That is 7.3/10 on the same scale — 12th of 12 months, versus 9.8/10 for the best month here.

Expect low-season pricing, and 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.

If your dates are flexible, September is materially better in Trou aux Biches — 2.5 points higher on the same scale.

May is one of the strongest months in Trou aux Biches (8th)

Best window · 8.5/10

May averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 51 mm, so plan one flexible day in three; you still get about 16 days with 6+ hours of sunshine and 11.1 hours of daylight.

A 8.5/10 puts this among the year's best months in Trou aux Biches (8th of 12); only September scores higher, at 9.8/10.

Figure on mid-season pricing, with crowds are moderate.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

June holds up well in Trou aux Biches — 10th best month

Good · 8.3/10

With 24°C (76°F) on average, June delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 32 mm of rain, any showers tend to pass through rather than settle in; about 12 days with 6+ hours of sunshine and 10.8 hours of daylight fill the rest.

That is 8.3/10 on the same scale — 10th of 12 months, versus 9.8/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, swimwear and real sun protection.

If your dates are flexible, September is materially better in Trou aux Biches — 1.5 points higher on the same scale.

July is one of the strongest months in Trou aux Biches (7th)

Best window · 8.6/10

With 23°C (74°F) on average, July delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 20 mm of rain, any showers tend to pass through rather than settle in; about 14 days with 6+ hours of sunshine and 10.9 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Trou aux Biches at 8.6/10 (7th of 12), just behind September at 9.8/10.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

August in Trou aux Biches — one of the year's strongest windows (4th)

Best window · 9.3/10

August averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 30 mm of rain — occasional showers rather than washed-out days — alongside about 19 days with 6+ hours of sunshine and 11.3 daylight hours.

A 9.3/10 puts this among the year's best months in Trou aux Biches (4th of 12); only September scores higher, at 9.8/10.

Plan for peak pricing, with this is one of the busiest months here.

Pack light clothing, swimwear and real sun protection.

September in Trou aux Biches tops the year's climate scores

Best window · 9.8/10

September averages 23°C (74°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 17 mm of rain — occasional showers rather than washed-out days — alongside about 26 days with 6+ hours of sunshine and 11.9 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Trou aux Biches at 9.8/10 — the reference point every other month on this page is measured against.

Plan for peak pricing, with crowds are moderate. 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, swimwear and real sun protection.

October is one of the strongest months in Trou aux Biches (2nd)

Best window · 9.8/10

With 24°C (75°F) on average, October delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 18 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 12.5 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Trou aux Biches at 9.8/10 (2nd of 12), just behind September at 9.8/10.

Expect peak pricing, and crowds are moderate. 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, swimwear and real sun protection.

November is one of the strongest months in Trou aux Biches (3rd)

Best window · 9.6/10

With 26°C (78°F) on average, November delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 43 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 13 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Trou aux Biches at 9.6/10 (3rd of 12), just behind September at 9.8/10.

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, swimwear and real sun protection.

December ranks 5th of 12 for Trou aux Biches — one of the best windows

Best window · 9.3/10

December averages 27°C (80°F) and humidity near 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rainfall runs 55 mm, so plan one flexible day in three; you still get about 31 days with 6+ hours of sunshine and 13.2 hours of daylight.

A 9.3/10 puts this among the year's best months in Trou aux Biches (5th of 12); only September scores higher, at 9.8/10.

Figure on peak pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.

FAQ

Frequently asked

When is the best time to visit Trou aux Biches, Mauritius?
In Ideal Weather mode, the best months to visit Trou aux Biches are September, October, November, August, December. September is the single peak month with an Ideal Weather score of 9.8/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Trou aux Biches year-round?
Trou aux Biches has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 23°C in August to 28°C in February, with Ideal Weather scores between 7.3 and 9.8 out of 10.
Which months should I avoid in Trou aux Biches?
The lowest Ideal Weather-scoring months in Trou aux Biches are April (7.3/10), January (8.1/10), June (8.3/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Trou aux Biches?
April is the wettest month in Trou aux Biches, averaging about 136 mm of rainfall. September is the driest, at roughly 17 mm.
Which is the sunniest month in Trou aux Biches?
January sees the most sun in Trou aux Biches, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Trou aux Biches a good destination for beach and coastal travel?
Trou aux Biches is well suited to beach and coastal travel. Its highest Ideal Weather window (September, October, November, August, December) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Trou aux Biches calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Trou aux Biches: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for beach and coastal travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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