St Lucia weather by month

Check out St Lucia weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °F
82°F maximum daytime temperature in January in Castries82
82°F maximum daytime temperature in February in Castries82
84°F maximum daytime temperature in March in Castries84
84°F maximum daytime temperature in April in Castries84
86°F maximum daytime temperature in May in Castries86
86°F maximum daytime temperature in June in Castries86
86°F maximum daytime temperature in July in Castries86
86°F maximum daytime temperature in August in Castries86
86°F maximum daytime temperature in September in Castries86
86°F maximum daytime temperature in October in Castries86
84°F maximum daytime temperature in November in Castries84
84°F maximum daytime temperature in December in Castries84
Hours of sunshine (daily)
Days with some rainfall
17 days with some rainfall in January in Castries17
13 days with some rainfall in February in Castries13
13 days with some rainfall in March in Castries13
11 days with some rainfall in April in Castries11
15 days with some rainfall in May in Castries15
19 days with some rainfall in June in Castries19
21 days with some rainfall in July in Castries21
20 days with some rainfall in August in Castries20
25 days with some rainfall in September in Castries25
18 days with some rainfall in October in Castries18
19 days with some rainfall in November in Castries19
18 days with some rainfall in December in Castries18
Sea temperature °F
81°F sea temperature in January in Castries81
79°F sea temperature in February in Castries79
81°F sea temperature in March in Castries81
81°F sea temperature in April in Castries81
82°F sea temperature in May in Castries82
82°F sea temperature in June in Castries82
82°F sea temperature in July in Castries82
84°F sea temperature in August in Castries84
84°F sea temperature in September in Castries84
84°F sea temperature in October in Castries84
82°F sea temperature in November in Castries82
82°F sea temperature in December in Castries82

More about St Lucia

St Lucia by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for St Lucia (Castries) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top St Lucia destinations

Below are average maximum temperatures at popular countries, regions and places in St Lucia for next month - May. Select a destination to see the climate guide for all months of the year.

All St Lucia destinations

Metric (°C)  |  Imperial (°F)

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Tropical storm risk: St Lucia hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
1%
2.4%
3.6%
1.8%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
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More about St Lucia

Compare St Lucia with the UK

Below the St Lucia chart shows average maximum daytime temperature for St Lucia (Castries) and the UK (London).

Maximum daytime temperature (°F)

St Lucia (Castries)
UK (London)
82
45
82
45
84
50
84
55
86
63
86
68
86
72
86
72
86
66
86
59
84
50
84
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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