Rosignol climate by month
What the weather is like
Rosignol has a tropical monsoon climate (Köppen Am): .
The warmest month is September, when afternoons average 29° and nights 25°. January is the coolest month, with highs of 27° and lows of 24°. The difference between the warmest and the coolest month is about 2°, a small seasonal swing typical of places tempered by the sea.
About 1,879 mm of precipitation falls in an average year. July is the wettest month (231 mm, 31 wet days) and September the driest (69 mm, 15 wet days). Cloud cover ranges from 25% in September to 51% in June.
The sea reaches about 29° in September. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Georgetown, the capital, Rosignol is 0.3° warmer on a September afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 29° · September
- Coldest nights
- 24° · January
- Wettest month
- July
- Driest month
- September
- Clearest skies
- September · 25% cloud
- Warmest sea
- 29° · September
- Longest day
- 12 h 29 min
- Shortest day
- 11 h 46 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 27° | 27° | 28° | 28° | 28° | 28° | 28° | 29° | 29° | 29° | 29° | 27° |
| Average low | 24° | 24° | 24° | 25° | 25° | 24° | 24° | 25° | 25° | 26° | 25° | 24° |
| Precipitation | 190 mm | 98 mm | 96 mm | 159 mm | 255 mm | 267 mm | 231 mm | 163 mm | 69 mm | 57 mm | 92 mm | 202 mm |
| Wet days (≥1 mm) | 20.7 | 16.5 | 17.8 | 21.2 | 28.7 | 29.3 | 30.7 | 25.5 | 15 | 18 | 24.7 | 27.2 |
| Cloud cover | 32% | 31% | 32% | 39% | 48% | 51% | 38% | 28% | 25% | 30% | 35% | 35% |
| Sea temperature | 27° | 27° | 27° | 27° | 28° | 28° | 28° | 29° | 29° | 29° | 28° | 28° |
| Daylight | 11h 48 | 11h 56 | 12h 05 | 12h 15 | 12h 24 | 12h 29 | 12h 27 | 12h 20 | 12h 09 | 11h 59 | 11h 50 | 11h 46 |
| Month score | 58 | 58 | 56 | 51 | 47 | 47 | 51 | 51 | 49 | 50 | 50 | 55 |