Climate averages 1991–2020
Castries weather
in October.
A hot, wet month: the 6th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Castries: daytime highs average 28.6°C and nights cool to about 24.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 119 mm of rain on roughly 21 days, which makes October a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 50 min on an average October day.
The nearest other city in this atlas is Fort-de-France (68 km away). In October its highs average 28.6°C, about as warm as Castries, with 148 mm of rain.
From October to November, average highs fall by 0.8°C to 27.8°C, and monthly rainfall falls from 119 mm to 102 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Castries climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.9°C23.4°C | 23.4°C | 31 | 11.8 | 11.411 h |
| February | 27.3°C23.3°C | 23.3°C | 21 | 8.9 | 11.712 h |
| March | 27.7°C23.5°C | 23.5°C | 26 | 9.8 | 12.012 h |
| April | 28.4°C24.0°C | 24.0°C | 36 | 11.5 | 12.412 h |
| May | 29.0°C24.8°C | 24.8°C | 47 | 12.5 | 12.813 h |
| June | 28.8°C25.0°C | 25.0°C | 65 | 15.1 | 12.913 h |
| July | 28.7°C24.8°C | 24.8°C | 83 | 20.3 | 12.913 h |
| August | 28.9°C25.0°C | 25.0°C | 99 | 20.7 | 12.613 h |
| September | 29.1°C25.2°C | 25.2°C | 104 | 19.4 | 12.212 h |
| October, selected | 28.6°C24.9°C | 24.9°C | 119 | 20.9 | 11.812 h |
| November | 27.8°C24.5°C | 24.5°C | 102 | 18.8 | 11.511 h |
| December | 27.3°C24.0°C | 24.0°C | 42 | 13.0 | 11.311 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Fort-de-France in OctoberMartinique · 68 kmHigh 28.6°C · Low 25.9°C · 148 mm rain
- Kingstown in OctoberSaint Vincent and the Grenadines · 96 kmHigh 28.5°C · Low 26.4°C · 153 mm rain
- Roseau in OctoberDominica · 151 kmHigh 28.0°C · Low 25.9°C · 118 mm rain
- Bridgetown in OctoberBarbados · 179 kmHigh 28.2°C · Low 26.0°C · 152 mm rain
- Saint George's in OctoberGrenada · 231 kmHigh 28.2°C · Low 26.3°C · 160 mm rain
- Basse-Terre in OctoberGuadeloupe · 236 kmHigh 29.5°C · Low 26.5°C · 108 mm rain
- Saint John’s in OctoberAntigua and Barbuda · 359 kmHigh 28.2°C · Low 26.0°C · 132 mm rain
- Port of Spain in OctoberTrinidad and Tobago · 374 kmHigh 28.9°C · Low 25.9°C · 111 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Castries) is explained once on the Castries year overview and on the Sources, method and limits page.