Today
Mon, Jun 22
Thunderstorm
28°25°
- Rain chance
- 71%
- Precip
- 5.3 mm
- Max wind
- 25 km/h
Castries air quality
Castries, Saint Lucia · St_Lucia time · 14.00°, -61.01°
Current conditions · 12:15 AM local
Current conditions in Castries
25°C
Overcast
Feels like 27°C
- Humidity
- 91%
- Wind
- 22 km/h E
- Gusts
- 48 km/h
- UV index
- 0
- Visibility
- 7.3 km
Air quality
51
Moderate
US AQI · European AQI 27
Air quality in Castries is currently moderate, with a US AQI of 51 (European AQI 27). The dominant pollutant right now is PM2.5. Unusually sensitive people should consider easing prolonged outdoor exertion. Fine particulate matter (PM2.5) measures 13.1 µg/m³.
Pollutants
- PM2.5
- 13.1 µg/m³
- PM10
- 30.7 µg/m³
- Ozone (O₃)
- 35 µg/m³
- NO₂
- 0.3 µg/m³
- SO₂
- 0.2 µg/m³
- CO
- 95 µg/m³
- Dust
- 20 µg/m³
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Right now
Conditions in Castries at the moment: overcast, 25 °C. It feels warmer than it reads, more like 27 °C. Wind is from the E at 22 km/h, gusting to 48 km/h. Humidity stands at 90% with sea-level pressure near 1017 hPa.
At a glance
Today
28° / 25°Thunderstorm · rain likely (71%)
Tomorrow
29° / 23°Thunderstorm · rain likely (100%)
Upcoming · to Sunday
29° / 22°Highs 29°, lows 22°. The most active day looks like Sunday, when rain chances peak at 96%.
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Next 3 days
Today looks like thunderstorm; temperatures run from 25 °C up to 28 °C. Rain chance peaks at 71% with around 5.3 mm possible. Gusts may reach 58 km/h from the ENE. Expect thunderstorm tomorrow, between 23 °C and 29 °C. Rain chance peaks at 100% with around 7.8 mm possible. Gusts may reach 54 km/h from the ENE. Wednesday brings thunderstorm with a high of 28 °C and a low of 22 °C. Rain chance peaks at 93% with around 9.9 mm possible. Gusts may reach 50 km/h from the E.
Tomorrow
Tue, Jun 23
Thunderstorm
29°23°
- Rain chance
- 100%
- Precip
- 7.8 mm
- Max wind
- 24 km/h
Wednesday
Wed, Jun 24
Thunderstorm
28°22°
- Rain chance
- 93%
- Precip
- 9.9 mm
- Max wind
- 21 km/h
Next 48 hours
- 12 AM25°15%22 km/h
- 1 AM25°15%23 km/h
- 2 AM25°16%21 km/h
- 3 AM25°21%21 km/h
- 4 AM25°27%21 km/h
- 5 AM25°31%20 km/h
- 6 AM25°29%20 km/h
- 7 AM25°24%22 km/h
- 8 AM26°22%21 km/h
- 9 AM27°28%25 km/h
- 10 AM27°37%24 km/h
- 11 AM28°45%25 km/h
- 12 PM28°49%24 km/h
- 1 PM28°52%24 km/h
- 2 PM28°55%24 km/h
- 3 PM27°62%24 km/h
- 4 PM26°69%23 km/h
- 5 PM26°71%24 km/h
- 6 PM25°63%24 km/h
- 7 PM25°48%23 km/h
- 8 PM25°35%23 km/h
- 9 PM25°24%22 km/h
- 10 PM25°15%22 km/h
- 11 PM25°8%22 km/h
- 12 AM25°5%22 km/h
- 1 AM25°5%22 km/h
- 2 AM26°6%24 km/h
- 3 AM25°8%22 km/h
- 4 AM25°10%22 km/h
- 5 AM25°12%20 km/h
- 6 AM25°10%18 km/h
- 7 AM26°8%20 km/h
- 8 AM26°12%22 km/h
- 9 AM27°27%23 km/h
- 10 AM28°48%23 km/h
- 11 AM29°65%22 km/h
- 12 PM28°75%22 km/h
- 1 PM28°81%22 km/h
- 2 PM27°86%21 km/h
- 3 PM26°92%20 km/h
- 4 PM27°98%21 km/h
- 5 PM26°100%21 km/h
- 6 PM26°98%20 km/h
- 7 PM25°92%20 km/h
- 8 PM25°86%20 km/h
- 9 PM25°78%20 km/h
- 10 PM24°70%19 km/h
- 11 PM23°65%17 km/h
In depth
The weather picture for Castries opens with overcast; it's 25 °C out, feeling like 27 °C. Today's forecast calls for thunderstorm, topping out near 28 °C before falling back to 25 °C overnight. Winds blow mainly from the ENE around 25 km/h, with gusts up to 58 km/h. Daytime highs hold fairly steady this week, staying within 25 to 29 °C. Rain is in the picture on today, tomorrow, Wednesday and beyond, with roughly 45 mm expected in total across the week. Tomorrow brings thunderstorm with a high of 29 °C and a 100% chance of precipitation. The UV index reaches 9 today, so sun protection is sensible during the middle of the day. Sunrise comes at 05:37 and sunset at 18:34, giving 12.9 hours of daylight. Current humidity sits at 90% with pressure near 1017 hPa. Looking further out, Friday shows thunderstorm with a high around 29 °C, while Sunday ends the week at 25 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Sun & UV
- Sunrise
- 5:37 AM
- Sunset
- 6:34 PM
- Daylight
- 12h 57m
- Max UV
- 8.85 Very high
Wind
- Wind
- 22 km/h
- Gusts
- 48 km/h
- Direction
- E (81°)
Farming weather
Soil temperatures today read surface 25 °C, 6 cm 26.5 °C, 18 cm 27.8 °C, 54 cm 27.8 °C. Soil moisture sits at 0-1 cm at 0.36 m³/m³, 3-9 cm at 0.36 m³/m³, 27-81 cm at 0.29 m³/m³. For wheat, the root-zone reading is above the ideal 0.2-0.35 m³/m³ band. Forecast rain (45 mm) roughly covers crop water demand (ET0 30 mm), so irrigation can likely be paused. No reliable spraying window appears in the next three days — winds or rain interfere; re-check after the next forecast update. Projected growing degree days over the next week: wheat 150, maize 111.
- Topsoil moisture
- 0.399 m³/m³
- Soil temp
- 25°C
- ET₀ today
- 4.48 mm
- Spray window
- Unfavorable
- Rain (next 7d)
- 45 mm
- Wind
- 22 km/h
- Humidity
- 91%
Advisory summary
No weather alert thresholds are crossed for Castries in the current forecast (derived from forecast data, not official warnings). Conditions may still change — check back for updates.
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All data for Castries
| Variable | Value |
|---|---|
| City | Castries, Castries, Saint Lucia |
| Coordinates | 13.9957, -61.00614 |
| Elevation | 119 m |
| Timezone | America/St_Lucia |
| Population | 20,000 |
| Observed at (local) | 12:15 AM |
| Temperature (2 m) | 25°C |
| Apparent temperature | 27°C |
| Relative humidity (2 m) | 91% |
| Dew point (2 m) | 23°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 3 |
| Cloud cover | 96% |
| Surface pressure | 1006 hPa |
| Sea-level pressure | 1017 hPa |
| Wind speed (10 m) | 22 km/h |
| Wind gusts (10 m) | 48 km/h |
| Wind direction (10 m) | 81° (E) |
| Visibility | 7.3 km |
| UV index | 0 |
| Day / night | Night |
| Today max / min | 28°C / 25°C |
| Today feels-like max / min | 31°C / 27°C |
| Today precipitation sum | 5.3 mm |
| Today rain sum | 4.2 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 71% |
| Today max wind / gusts | 25 km/h / 58 km/h |
| Dominant wind direction | 73° (ENE) |
| Sunrise / sunset | 5:37 AM / 6:34 PM |
| Daylight duration | 12h 57m |
| Sunshine duration | 12h 00m |
| Max UV index | 8.85 |
| Reference evapotranspiration (ET₀) | 4.48 mm |
| Topsoil moisture (0–1 cm) | 0.399 m³/m³ |
| Surface soil temperature | 25°C |
| US AQI | 51 |
| European AQI | 27 |
| PM2.5 | 13.1 µg/m³ |
| PM10 | 30.7 µg/m³ |
| Ozone (O₃) | 35 µg/m³ |
| Nitrogen dioxide (NO₂) | 0.3 µg/m³ |
| Sulphur dioxide (SO₂) | 0.2 µg/m³ |
| Carbon monoxide (CO) | 95 µg/m³ |
| Dust | 20 µg/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/lc/castries/castries" width="320" height="180" frameborder="0" title="Castries weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Castries tomorrow?
Rain is likely in Castries tomorrow — the chance of precipitation reaches 100%, with around 7.8 mm expected.
What is the temperature in Castries today?
Today Castries sees thunderstorm with a high of 28 °C and a low of 25 °C.
How hot will it be in Castries tomorrow?
Tomorrow's high in Castries is forecast at 29 °C with thunderstorm.
Is it windy in Castries today?
Yes, yes — gusts up to 58 km/h today.
What is the UV index in Castries today?
The UV index peaks at 9 today, which is very high.
What time is sunrise and sunset in Castries today?
The sun rises at 05:37 and sets at 18:34 local time.
Is the air quality in Castries good today?
Air quality is moderate right now, with a US AQI reading of 51.