St Kitts and Nevis Weather Forecast

This detailed weather forecast, valid until 8 pm on Wednesday, May 14, 2025, paints a picture of transitional weather conditions influenced by a departing trough system. The forecast highlights lingering atmospheric moisture and instability as the primary drivers of potential shower activity. Temperatures are expected to reach a pleasant high of 31°C (88°F) and dip to a comfortable low of 23°C (73°F), offering a moderate range throughout the forecast period. The marine forecast indicates slightly elevated seas, posing a cautionary note for small craft operators, although conditions are anticipated to improve starting Wednesday.

The overnight forecast calls for partly cloudy skies transitioning to cloudiness at times, with a moderate 60% chance of showers. This suggests that while not a certainty, there is a significant likelihood of rainfall during the overnight hours. This probability reflects the lingering instability and moisture associated with the departing trough, which creates conditions favorable for shower development. The combination of cloud cover and potential rainfall will likely contribute to a mild overnight temperature profile.

Wednesday’s forecast predicts partly sunny conditions with a 40% chance of showers. This indicates a decreasing likelihood of precipitation compared to the overnight period, suggesting that the atmospheric instability is diminishing. The partly sunny skies will allow for periods of sunshine interspersed with cloud cover, leading to a more varied weather experience throughout the day. The lower probability of showers suggests a generally drier day compared to the previous night, with rainfall more localized and less widespread.

Wind conditions are expected to be brisk, blowing from the east at speeds between 20 to 37 km/h (13 to 23 mph), with gusts potentially reaching as high as 57 km/h (36 mph). These sustained winds, coupled with higher gusts, could contribute to a breezy feel throughout the forecast period. The easterly direction of the wind suggests a flow of air originating over the ocean, which could influence both temperature and humidity levels. The relatively strong winds also contribute to the slightly elevated sea state.

Sea conditions are forecast to be moderately rough, ranging from 1.2 to 2.1 meters (4 to 7 feet). This elevated sea state is likely a result of the recent trough passage and the sustained easterly winds. The forecast advises small craft operators to exercise caution due to these conditions. This precaution is warranted as the combination of wind and wave action could create challenging navigation conditions for smaller vessels. The gradual decrease in sea state expected from Wednesday indicates improving marine conditions as the influence of the trough weakens.

Finally, the forecast provides sunrise and sunset times for Wednesday, with sunrise predicted at 5:40 am and sunset at 6:35 pm. These timings provide a general framework for the daylight hours and can be useful for planning outdoor activities. The relatively early sunrise and late sunset are characteristic of the time of year, reflecting the longer daylight hours associated with the approach of summer. These timings, combined with the predicted weather conditions, offer a comprehensive overview for planning activities during the forecast period.