🇱🇨 Weather in Castries
Map Overlays:
Hourly Forecast for Castries
03:00
26°
12%
04:00
26°
7%
05:00
26°
8%
06:00
26°
12%
07:00
26°
9%
08:00
27°
7%
09:00
27°
12%
10:00
28°
6%
11:00
28°
6%
12:00
28°
7%
13:00
28°
1%
14:00
28°
1%
15:00
28°
6%
16:00
28°
14%
17:00
27°
9%
18:00
27°
2%
19:00
26°
15%
20:00
26°
73%
21:00
26°
14%
22:00
26°
73%
23:00
26°
73%
00:00
26°
12%
01:00
26°
73%
02:00
26°
73%
14-Day Forecast for Castries
2026-06-08
Patchy rain nearby
29° /
26°
2026-06-09
Patchy rain nearby
29° /
26°
2026-06-10
Patchy rain nearby
29° /
26°
2026-06-11
Patchy rain nearby
29° /
26°
2026-06-12
Patchy rain nearby
29° /
26°
2026-06-13
Patchy rain nearby
28° /
26°
2026-06-14
Patchy rain nearby
28° /
26°
Additional Forecasts for Castries
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 98.0 μg/m³
O₃ (Ozone) 49.0 μg/m³
NO₂ (Nitrogen Dioxide) 0.1 μg/m³
SO₂ (Sulphur Dioxide) 0.1 μg/m³
PM2.5 (Fine particles) 9.3 μg/m³
PM10 (Coarse particles) 16.4 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Saint Lucia
Weather in Castries — FAQ
Answers refreshed each request based on current conditions in Castries.
What is the weather like right now in Castries?
Right now in Castries, Saint Lucia the temperature is 26.0°C (feels like 22.2°C), with patchy rain nearby. Relative humidity is 79% and wind is 28.4 km/h.
What is today's high and low temperature in Castries?
Today's forecast high in Castries is 28.7°C and the overnight low is 25.9°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Castries today?
The chance of precipitation in Castries today is 73%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Castries differ from nearby cities?
Even short distances can change temperatures noticeably. Castries's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.