← Saint Lucia
Sea temperature in Saint Lucia in August
29°Ctropical · monthly average
The sea around Saint Lucia averages 29°C in August. Warm enough for relaxed swimming with no wetsuit needed.
Monthly sea temperatures across the year
Best swim months
Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Warmest month
August (29°C)
Coolest month
January (27°C)
Best beaches in Saint Lucia
Gros Islet
Reduit Beach
St Lucia's signature mile-long resort beach.
Soufriere
Anse Chastanet
Dark-sand cove beneath the Pitons.
Soufriere
Sugar Beach
White-sand beach between the Pitons.
Castries
Marigot Bay Beach
Coastal beach near Marigot.
Castries
Vigie Beach
Coastal beach near Castries.
Saint Lucia
Anse Cochon
Boat-access snorkel beach.