Climate averages 1991–2020
Castries weather
in June.
A hot, moderately wet month: the 4th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Castries: daytime highs average 28.8°C and nights cool to about 25.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 65 mm of rain on roughly 15 days, which makes June a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 56 min on an average June day.
The nearest other city in this atlas is Fort-de-France (68 km away). In June its highs average 28.8°C, about as warm as Castries, with 83 mm of rain.
From June to July, average highs fall by 0.1°C to 28.7°C, and monthly rainfall rises from 65 mm to 83 mm.
The annual picture
June 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, selected | 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 | 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
June in nearby cities
- Fort-de-France in JuneMartinique · 68 kmHigh 28.8°C · Low 25.9°C · 83 mm rain
- Kingstown in JuneSaint Vincent and the Grenadines · 96 kmHigh 28.4°C · Low 26.3°C · 93 mm rain
- Roseau in JuneDominica · 151 kmHigh 27.9°C · Low 25.9°C · 47 mm rain
- Bridgetown in JuneBarbados · 179 kmHigh 28.2°C · Low 26.0°C · 88 mm rain
- Saint George's in JuneGrenada · 231 kmHigh 27.9°C · Low 25.9°C · 117 mm rain
- Basse-Terre in JuneGuadeloupe · 236 kmHigh 30.0°C · Low 26.4°C · 45 mm rain
- Saint John’s in JuneAntigua and Barbuda · 359 kmHigh 28.5°C · Low 26.0°C · 51 mm rain
- Port of Spain in JuneTrinidad and Tobago · 374 kmHigh 28.5°C · Low 25.4°C · 103 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.