St. Kitts and Nevis Meteorological Forecast

This detailed weather forecast pertains to the islands of St. Kitts and Nevis for the period starting March 16, 2025, and valid until 8:00 am on March 17, 2025. The forecast anticipates a day characterized by fluctuating cloud cover, moderate chances of showers, and mild temperatures. The driving force behind this weather pattern is a confluence of meteorological factors: a weak surface to low-level trough, marginal low-level moisture, and daytime heating. These conditions are expected to interact to produce localized atmospheric instability, potentially leading to the development of convective clouds and scattered showers across the islands.

The forecast details the daily temperature variations, predicting a high of 30°C (86°F) and a low of 19°C (66°F). The cloud cover is expected to be predominantly cloudy during the morning hours, with a 60% chance of showers. This probability decreases as the day progresses, suggesting a lower likelihood of rainfall in the afternoon. As evening approaches, the cloud cover is expected to transition to partly cloudy conditions, accompanied by a 40% chance of showers. This chance of precipitation further diminishes overnight, leading to mostly clear skies.

Wind conditions are predicted to be generally light and variable. Northeast winds are expected to prevail at speeds of 6 to 13 km/h (4 to 8 mph), occasionally becoming calm. These gentle breezes are indicative of relatively stable atmospheric conditions in the larger regional context, with the local shower activity primarily driven by the aforementioned atmospheric instability. The seas are forecast to be relatively calm, with wave heights ranging from 1 to 1.2 meters (3 to 4 feet), making for favorable conditions for maritime activities.

The forecast provides specific times for sunset and sunrise, with the sun setting at 6:21 pm on March 16th and rising at 6:17 am on March 17th. These timings reflect the typical diurnal cycle for the time of year in this geographical location. The transition from partly cloudy evening skies to mostly clear overnight conditions suggests that stargazing might be possible during the later part of the night. The mild temperatures also contribute to comfortable overnight conditions.

In summary, the forecast for St. Kitts and Nevis on March 16, 2025, anticipates a day of variable weather conditions. The combination of a weak trough, limited moisture, and diurnal heating creates an environment conducive to localized shower development, particularly during the morning hours. While the chance of rain is moderate, the forecast does not suggest widespread or heavy rainfall. The temperatures will be mild, and the winds will remain light. Sea conditions are expected to be calm.

The transition from mostly cloudy skies in the morning to partly cloudy conditions in the evening and then to mostly clear skies overnight reflects the evolution of the atmospheric dynamics throughout the forecast period. The diminishing chance of showers as the day progresses suggests that the atmospheric instability generating the localized buildups will gradually subside. The relatively calm winds and seas further corroborate the prediction of generally stable atmospheric conditions in the broader region.