St Kitts and Nevis Meteorological Forecast

This detailed weather forecast pertains to a specific 24-hour period, commencing on September 2, 2025, and concluding at 8 PM on September 3, 2025. The overarching theme is a transition from a moderately moist environment to drier, more stable conditions. The forecast anticipates a high temperature of 34°C (93°F) and a low of 23°C (73°F), indicating a relatively warm period. The predominant sky condition is expected to be partly cloudy, with intermittent periods of increased cloud cover associated with a moderate chance of passing showers. These showers are primarily anticipated during the overnight period and early morning hours.

The atmospheric dynamics driving this weather pattern involve shallow pockets of low-level moisture being transported across the region by a moderate east-southeast wind flow. This wind is predicted to range from 11 to 26 km/h (7 to 16 mph), with calmer periods expected overnight. The movement of this moist air contributes to the likelihood of shower activity, particularly during the night and into the next morning. However, the forecast anticipates a shift as a drier and more stable air mass moves into the area following this initial period of moisture. This incoming air mass will effectively suppress significant shower development during the latter part of the forecast period.

The detailed breakdown of the forecast begins with the overnight period of September 2nd. Fair to partly cloudy skies are expected, punctuated by brief cloudy spells and a 60% chance of brief passing showers. This moderate chance of showers reflects the presence of the low-level moisture interacting with the prevailing wind flow. The showers are characterized as “brief and passing,” suggesting relatively short durations and localized nature.

As the forecast progresses into September 3rd, the conditions transition. The forecast calls for partly sunny skies throughout the day, with a reduced 40% chance of a brief passing shower primarily during the morning hours. This decrease in shower probability underscores the influence of the incoming drier and more stable air mass, which gradually inhibits further shower development. By the afternoon, the influence of this drier air becomes more prominent, leading to predominantly sunny conditions and reduced chances of precipitation.

The marine forecast predicts relatively calm seas, with wave heights ranging from 1 to 1.5 meters (3 to 5 feet). This suggests favorable conditions for maritime activities. The forecast also provides sunrise and sunset times for September 3rd at 5:57 AM and 6:23 PM, respectively, offering a complete picture of the daylight hours.

In summary, this 24-hour forecast paints a picture of transition from a moderately moist and showery environment to drier and more stable conditions. Initially, the presence of low-level moisture transported by moderate winds leads to a 60% chance of brief passing showers overnight. As the day progresses, a drier air mass enters the region, reducing the likelihood of showers to 40% in the morning and ultimately leading to partly sunny skies with limited precipitation potential in the afternoon. The sea state is expected to be calm, with wave heights of 1 to 1.5 meters. This comprehensive forecast provides a clear outlook for the specified period, allowing for informed planning and decision-making based on the predicted weather conditions.