St. Kitts and Nevis Meteorological Forecast

This detailed weather forecast pertains to a specific 24-hour period commencing on September 16, 2025, and concluding at 8:00 PM on September 17, 2025. The forecast highlights the potential influence of a tropical wave, anticipated to introduce unstable atmospheric conditions characterized by a significant probability of showers and thunderstorms. The expected temperature range spans from a high of 33°C (91°F) to a low of 24°C (75°F), reflecting a moderately warm and humid environment likely exacerbated by the tropical wave’s presence.

Tonight’s weather conditions are predicted to be predominantly cloudy, with a high probability (70%) of showers and a moderate chance (40%) of thunderstorms. This suggests a generally wet and potentially stormy evening, necessitating precautions for those venturing outdoors. The cloud cover and precipitation are indicative of the approaching tropical wave and its associated atmospheric instability. The expected wind direction will be from the east-northeast, with speeds ranging between 13 to 28 km/h (8 to 17 mph), contributing to the unsettled weather pattern.

The forecast for tomorrow, September 17, 2025, continues the trend of cloudy skies, with showers persisting and a moderate chance (60%) of thunderstorms. While the probability of thunderstorms is slightly lower than the previous night, the continued presence of showers and cloud cover suggests another day of unsettled weather. The wind direction is expected to shift to the east-southeast, maintaining a similar speed range of 13 to 28 km/h (8 to 17 mph), indicating a consistent influence from the tropical wave.

The marine forecast predicts sea conditions with wave heights ranging from 0.9 to 1.5 meters (3 to 5 feet), suggesting moderately choppy waters. While not excessively rough, these conditions warrant caution for small craft operators and those engaging in marine activities. The combination of unsettled weather, including showers and potential thunderstorms, coupled with moderately choppy seas emphasizes the need for prudence in coastal areas.

The predicted sunrise for September 17, 2025, is 5:59 AM, while sunset is expected at 6:12 PM. These timings provide a framework for the daylight hours, offering approximately 12 hours and 13 minutes of daylight. The relatively balanced distribution of daylight and darkness is typical for this time of year, transitioning towards shorter days as the autumnal equinox approaches.

In summary, this weather forecast paints a picture of unsettled conditions over the 24-hour period, influenced by the passage of a tropical wave. The forecast calls for cloudy skies, with a high probability of showers and a moderate chance of thunderstorms both tonight and tomorrow. The wind direction will shift from east-northeast tonight to east-southeast tomorrow, maintaining a consistent speed range. Sea conditions are predicted to be moderately choppy, with wave heights ranging from 0.9 to 1.5 meters. Finally, sunrise is expected at 5:59 AM and sunset at 6:12 PM on September 17, 2025. This comprehensive forecast provides valuable information for planning activities during this period, advising caution due to the potential for inclement weather.