Climate Chart of Basseterre, Saint Kitts and Nevis
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
Basseterre, Saint Kitts and Nevis, has a warm year-round profile in the climate record for 2013–2023. Monthly mean temperatures range from 24.9 °C in February to 27.7 °C in September, with an unweighted mean of monthly means of 26.3 °C. Rainfall and sunshine also vary across the calendar: daily rainfall means span 1.17 mm/day in March to 3.96 mm/day in September, while daily sunshine means range from 9.73 hours/day in November to 11.59 hours/day in July. These figures describe monthly averages, not conditions on any particular day.
Climate overview
Temperature
The monthly mean temperature is coolest in February, at 24.9 °C, and reaches its highest monthly mean in September, at 27.7 °C. The unweighted mean across the calendar-month means is 26.3 °C; it is a broad reference point rather than a day-weighted annual average. Monthly means do not describe daytime highs or the temperature visitors will experience on a particular day.
Rain
Mean daily rainfall is lowest in March, at 1.17 mm/day, making it a conditional option for visitors who prioritise a lower monthly average. The highest monthly mean is in September, at 3.96 mm/day, so rain preparation is useful for travel then. Across the calendar-month means, the unweighted mean is 2.31 mm/day. These are daily averages, not monthly totals: they do not show how often rain falls or guarantee dry or wet days.
Sunshine
Mean daily sunshine duration peaks in July at 11.59 hours/day, while its lowest monthly mean is 9.73 hours/day in November. The unweighted mean of the calendar-month means is 10.85 hours/day. These averages can help with outdoor sightseeing plans, but sunshine duration is not day length and does not promise the same amount of sun on an individual day.
Best Travel Time Guide for Basseterre, Saint Kitts and Nevis: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly mean temperatures, February is the relevant reference point, with a mean of 24.9 °C; this does not indicate daytime highs or guarantee a particular day's conditions. If lower average rainfall is the priority, March is a conditional option at 1.17 mm/day mean daily rainfall, while September has the highest monthly mean, 3.96 mm/day, and is a sensible time to prepare for rain. Neither average specifies rain frequency or ensures dry or wet days. For daylight outdoor planning, mean daily sunshine is highest in July at 11.59 hours/day and lowest in November at 9.73 hours/day. These are separate criteria rather than a combined best-time ranking, and sunshine duration is not day length or a forecast for an individual visit.
Climate Data Overview for Basseterre, Saint Kitts and Nevis
Explore the comprehensive climate data for Basseterre, Saint Kitts and Nevis. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 25.0 | 1.36 | 0.00 | 10.40 |
| Feb | 24.9 | 1.34 | 0.00 | 10.77 |
| Mar | 25.0 | 1.17 | 0.00 | 11.10 |
| Apr | 25.5 | 1.72 | 0.00 | 11.48 |
| May | 26.4 | 2.19 | 0.00 | 11.47 |
| Jun | 27.1 | 1.71 | 0.00 | 11.58 |
| Jul | 27.3 | 2.19 | 0.00 | 11.59 |
| Aug | 27.6 | 3.17 | 0.00 | 11.16 |
| Sep | 27.7 | 3.96 | 0.00 | 10.71 |
| Oct | 27.3 | 3.70 | 0.00 | 10.13 |
| Nov | 26.6 | 3.23 | 0.00 | 9.73 |
| Dec | 25.8 | 1.99 | 0.00 | 10.05 |
| Average | 26.3 | 2.31 | 0.00 | 10.85 |
