Climate guide for Grand Baie, Mauritius

Best Time to Visit
Grand Baie

How to read the score (0–10)
05810
UnfavorableGoodOptimal

About Grand Baie

Grand Baie is Mauritius's premier northern coastal hub, featuring calm emerald waters, yacht charters to northern islets, lively shopping plazas, and seafood dining.

Did you know?

Travel Tips

Catamaran Cruise to Northern Islets
Book a day cruise from Grand Baie harbor to Gabriel Island and Flat Island for beach BBQs and reef snorkeling.
La Cuvette Beach Swimming
Escape to La Cuvette beach, a quiet cove hidden near Grand Baie center ideal for calm turquoise water swimming.
Fresh Seafood at Grand Baie Bazaar
Dine at waterfront restaurants in Grand Baie to enjoy grilled red snapper and octopus curry.

Things to do in Grand Baie

Grand Baie, Mauritius. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Grand Baie: the short answer

The best time to visit Grand Baie is March, followed by April, October. Those months combine the most usable temperatures with the fewest lost days to rain: March averages 25°C with 40 mm of rain and about 22 sunny days. The months to avoid unless you have a specific reason are September, August. If budget matters more than perfect weather, May is the strongest of the low-rate months at 6.5/10.

Across the year Grand Baie swings from 21°C in January to 38°C in July, a 17-degree spread, while rainfall ranges from 40 mm in January to 160 mm in May. That is the whole planning problem in one sentence: Grand Baie is not equally good year-round, and the difference between the best and worst month here is 2.7 points on a 10-point scale.

Warmest month: July (38°C). Coolest: January (21°C). Driest: January (40 mm). Wettest: May (160 mm).

Grand Baie month by month

January in Grand Baie — reliably good (6th best month)

Good · 8/10

January averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 9.8 daylight hours.

It scores 8/10 here, 6th of 12 months, against 9.2/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

February in Grand Baie — reliably good (7th best month)

Good · 8/10

February averages 22°C (72°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 10.8 daylight hours.

It scores 8/10 here, 7th of 12 months, against 9.2/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

March in Grand Baie — the year's strongest window

Best window · 9.2/10

March averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 12 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Grand Baie at 9.2/10 — the reference point every other month on this page is measured against.

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.

April in Grand Baie — the year's strongest window

Best window · 9.2/10

April averages 29°C (84°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 13.3 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Grand Baie at 9.2/10 — the reference point every other month on this page is measured against.

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

May in Grand Baie — workable with trade-offs

Trade-offs · 6.5/10

May averages 33°C (91°F) at 77% humidity — genuinely punishing heat. Anything outdoors needs to happen before 10am.

At 160 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.5/10 here, 8th of 12 months, against 9.2/10 in the destination's best month.

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, March is materially better in Grand Baie — 2.7 points higher on the same scale.

June in Grand Baie — workable with trade-offs

Trade-offs · 6.5/10

June averages 36°C (97°F) at 77% humidity — genuinely punishing heat. Anything outdoors needs to happen before 10am.

At 160 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.5/10 here, 9th of 12 months, against 9.2/10 in the destination's best month.

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, March is materially better in Grand Baie — 2.7 points higher on the same scale.

July in Grand Baie — workable with trade-offs

Trade-offs · 6.5/10

July averages 38°C (100°F) at 77% humidity — genuinely punishing heat. Anything outdoors needs to happen before 10am.

At 160 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.5/10 here, 10th of 12 months, against 9.2/10 in the destination's best month.

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, March is materially better in Grand Baie — 2.7 points higher on the same scale.

August in Grand Baie — workable with trade-offs

Trade-offs · 6.5/10

August averages 37°C (99°F) at 77% humidity — genuinely punishing heat. Anything outdoors needs to happen before 10am.

At 160 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.5/10 here, 11th of 12 months, against 9.2/10 in the destination's best month.

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, March is materially better in Grand Baie — 2.7 points higher on the same scale.

September in Grand Baie — workable with trade-offs

Trade-offs · 6.5/10

September averages 34°C (93°F) at 77% humidity — genuinely punishing heat. Anything outdoors needs to happen before 10am.

At 160 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.5/10 here, 12th of 12 months, against 9.2/10 in the destination's best month.

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, March is materially better in Grand Baie — 2.7 points higher on the same scale.

October in Grand Baie — the year's strongest window

Best window · 9.2/10

October averages 30°C (86°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 10.8 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Grand Baie at 9.2/10 — the reference point every other month on this page is measured against.

Expect mid-season pricing, and crowds are moderate.

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

November in Grand Baie — the year's strongest window

Best window · 9.2/10

November averages 26°C (79°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 9.8 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Grand Baie at 9.2/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and this is one of the busiest months here.

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

December in Grand Baie — the year's strongest window

Best window · 9.2/10

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

Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 22 sunny days and 9.5 daylight hours.

On our climate-comfort scale this is the top-ranked month of the year for Grand Baie at 9.2/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and this is one of the busiest months here.

Pack light clothing, swimwear and real sun protection.

Frequently asked

When is the best time to visit Grand Baie, Mauritius?
In Ideal Weather mode, the best months to visit Grand Baie are March, April, October, November, December. March is the single peak month with an Ideal Weather score of 9.2/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Grand Baie year-round?
Grand Baie has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 21°C in January to 38°C in July, with Ideal Weather scores between 6.5 and 9.2 out of 10.
Which months should I avoid in Grand Baie?
The lowest Ideal Weather-scoring months in Grand Baie are May (6.5/10), June (6.5/10), July (6.5/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Grand Baie?
May is the wettest month in Grand Baie, averaging about 160 mm of rainfall. January is the driest, at roughly 40 mm.
Which is the sunniest month in Grand Baie?
January sees the most sun in Grand Baie, with about 22 sunny days on average - ideal for outdoor plans.
Is Grand Baie a good destination for beach and coastal travel?
Grand Baie is well suited to beach and coastal travel. Its highest Ideal Weather window (March, April, October, November, December) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Grand Baie calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Grand Baie: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for beach and coastal travel.

Explore by month

Curated in Grand Baie

Tickets & experiences