Sint Maarten · Caribbean
Maho Beach
Sea
84.6°F
Air
–
UV
–
Bathtub
Above 28°C
More like this
Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
72°F
75°F
79°F
82°F
86°F
90°F
93°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MinMin °F
8079.7
7978.7
7979.0
8079.6
8181.0
8282.1
8382.6
8483.5
8484.5
8484.0
8382.8
8181.1
AvgAvg °F
8080.4
8079.6
8079.8
8080.4
8282.1
8383.1
8483.6
8484.5
8585.4
8585.2
8483.6
8281.9
MaxMax °F
8181.3
8080.3
8180.9
8281.6
8383.5
8584.7
8584.7
8585.3
8686.2
8686.4
8584.5
8383.0
Warmest in September (85.4°F). Coldest in February (79.6°F). Comfortable for swimming year-round.
About Maho Beach
On the Dutch side of Saint Martin, Maho Beach sits directly beneath the approach to Princess Juliana International Airport, where wide-body jets clear the chain-link fence by twenty metres before touching down on the runway. The 250-metre strand is the plane-spotting anchor of the Caribbean; west around the headland, Mullet Bay curves into a calmer golden crescent, and Simpson Bay stretches south past the marina. Sea temperatures hold between 27 and 29 °C year-round, with the calmest swimming from March through June.