January holds up well in Sur — 12th best month
Good · 8.1/10With 21°C (69°F) on average, January delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
At just 10 mm for the month, rain will not shape your plans; you get about 17 days with 6+ hours of sunshine and 10.8 hours of daylight.
That is 8.1/10 on the same scale — 12th of 12 months, versus 10/10 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, May is materially better in Sur — 1.9 points higher on the same scale.
February in Sur — one of the year's strongest windows (6th)
Best window · 9.5/10With 22°C (72°F) on average, February delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 27 mm of rain, any showers tend to pass through rather than settle in; about 21 days with 6+ hours of sunshine and 11.2 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Sur at 9.5/10 (6th of 12), just behind May at 10/10.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection.
March is one of the strongest months in Sur (2nd)
Best window · 9.9/10March averages 25°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 21 mm of rain — occasional showers rather than washed-out days — alongside about 29 days with 6+ hours of sunshine and 11.8 daylight hours.
A 9.9/10 puts this among the year's best months in Sur (2nd of 12); only May scores higher, at 10/10.
Plan for 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, swimwear and real sun protection.
April ranks 7th of 12 for Sur — one of the best windows
Best window · 9.5/10Days in April average 29°C (84°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 53 mm of rain this month — a flexible day or two helps — with about 30 days with 6+ hours of sunshine and 12.5 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Sur at 9.5/10 (7th of 12), just behind May at 10/10.
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.
May in Sur tops the year's climate scores
Best window · 10/10May averages 32°C (90°F) — genuinely punishing heat. Anything outdoors needs to happen before 10am.
Rain is a non-issue at 2 mm for the month, with about 31 days with 6+ hours of sunshine and 13.1 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Sur at 10/10 — the reference point every other month on this page is measured against.
Figure on 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 the lightest breathable clothing you own, a hat, and more water than feels necessary.
June in Sur — one of the year's strongest windows (9th)
Best window · 9.1/10At 34°C (92°F), June is at its most extreme: early starts are not optional, and afternoons belong indoors.
At just 2 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 13.4 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Sur at 9.1/10 (9th of 12), just behind May at 10/10.
Budget for mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
July is one of the strongest months in Sur (3rd)
Best window · 9.9/10At 32°C (90°F), July is at its most extreme: early starts are not optional, and afternoons belong indoors.
With around 30 mm of rain, any showers tend to pass through rather than settle in; about 26 days with 6+ hours of sunshine and 13.3 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Sur at 9.9/10 (3rd of 12), just behind May at 10/10.
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 the lightest breathable clothing you own, a hat, and more water than feels necessary.
August ranks 10th of 12 for Sur — one of the best windows
Best window · 9/10August averages 31°C (88°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 78 mm, so plan one flexible day in three; you still get about 29 days with 6+ hours of sunshine and 12.8 hours of daylight.
A 9/10 puts this among the year's best months in Sur (10th of 12); only May scores higher, at 10/10.
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 packable rain layer.
September in Sur — one of the year's strongest windows (4th)
Best window · 9.9/10September averages 30°C (85°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 1 mm for the month, with about 29 days with 6+ hours of sunshine and 12.1 hours of daylight to work with.
A 9.9/10 puts this among the year's best months in Sur (4th of 12); only May scores higher, at 10/10.
Plan for mid-season pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
October is one of the strongest months in Sur (5th)
Best window · 9.9/10Days in October average 28°C (82°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
With around 31 mm of rain, any showers tend to pass through rather than settle in; about 26 days with 6+ hours of sunshine and 11.5 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Sur at 9.9/10 (5th of 12), just behind May at 10/10.
Expect peak pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
November in Sur — one of the year's strongest windows (8th)
Best window · 9.5/10With 25°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.
At just 4 mm for the month, rain will not shape your plans; you get about 19 days with 6+ hours of sunshine and 10.9 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Sur at 9.5/10 (8th of 12), just behind May at 10/10.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection.
December is one of the strongest months in Sur (11th)
Best window · 8.5/10December averages 22°C (71°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 4 mm for the month, with about 16 days with 6+ hours of sunshine and 10.6 hours of daylight to work with.
A 8.5/10 puts this among the year's best months in Sur (11th of 12); only May scores higher, at 10/10.
Figure on mid-season pricing, with crowds are light for this destination.
Pack light clothing, swimwear and real sun protection.
Flexible dates? May scores 1.5 points higher here — enough to change the trip.
