St. Kitts and Nevis Meteorological Forecast

This detailed weather forecast pertains to a specific geographic region, likely a group of islands, for a 48-hour period spanning March 10th and 11th, 2025, with the forecast validity extending until 8 PM on Tuesday, March 11th. The forecast highlights the dominant influence of a high-pressure system originating from the Atlantic Ocean, coupled with low atmospheric humidity, as the key factors shaping the weather conditions. This combination creates a stable atmospheric environment, effectively suppressing widespread shower activity.

The forecast for the night of March 10th predicts mostly clear and cool conditions. While the probability of rainfall is minimal, estimated at a slight 10%, the possibility of isolated, brief showers cannot be entirely ruled out. This suggests that any precipitation during the night is likely to be light and transient. The low temperature is forecast to be 20°C (68°F), indicating a comfortable, albeit relatively cool, night.

Looking ahead to Tuesday, March 11th, the forecast anticipates partly sunny conditions. Similar to the previous night, the chance of showers remains low at 10%, suggesting that the overall weather pattern will continue to be dominated by dry and stable air. The forecast doesn’t explicitly mention the expected high temperature for the day, but given the previous day’s high of 30°C (86°F) and the continued influence of the high-pressure system, it’s reasonable to expect a similar temperature range.

The wind forecast for March 11th predicts easterly winds ranging in speed from 9 to 28 km/h (6 to 17 mph). This moderate easterly wind flow further supports the forecast of generally settled conditions. The relatively low wind speeds are unlikely to cause significant disruption and suggest a pleasant breeze rather than strong gusts.

Sea conditions are expected to be relatively calm, with wave heights forecast between 1 and 1.5 meters (3 to 5 feet). This calm sea state is consistent with the overall stable atmospheric conditions and moderate wind speeds. These conditions are generally favorable for maritime activities, posing minimal risk to boaters and other seafarers.

Finally, the forecast provides information about sunrise and sunset times for Tuesday, March 11th. Sunrise is predicted at 6:22 AM, while sunset is expected at 6:20 PM. This information provides context for the duration of daylight hours and can be useful for planning outdoor activities. The near-equal sunrise and sunset times suggest that the forecast period is close to the equinox, when daylight and nighttime hours are approximately equal. This comprehensive forecast provides a clear picture of the expected weather conditions, emphasizing the persistent influence of the Atlantic high-pressure system and resulting stable, dry weather with minimal chances of precipitation.

Expanding further on the meteorological implications of this forecast, the high-pressure system acts as a stabilizing force in the atmosphere. High pressure is associated with sinking air, which inhibits cloud formation and precipitation. The descending air warms adiabatically, further reducing the relative humidity and making it even less conducive to shower development. This explains the low probability of rainfall mentioned in the forecast. The low moisture levels, as explicitly stated in the synopsis, reinforce this dry pattern. Low humidity generally leads to clear skies and comfortable temperatures, which aligns with the forecast of mostly clear and cool nights and partly sunny days.

The easterly winds are a typical feature of high-pressure systems in the Northern Hemisphere. These winds circulate clockwise around the center of the high, bringing in relatively dry air from the east. In this specific case, the easterly winds originating over the Atlantic Ocean are likely contributing to the low humidity levels over the islands. The moderate wind speeds further contribute to the stable conditions and help to dissipate any potential cloud development.

The calm seas, characterized by wave heights of 1 to 1.5 meters, are a direct consequence of the stable atmospheric conditions and moderate wind speeds. The lack of strong winds prevents significant wave generation, resulting in relatively calm seas. This is typical of high-pressure regimes, where the downward motion of air suppresses vertical mixing and reduces the energy available for wave formation.

The sunrise and sunset times provide valuable context for understanding the diurnal temperature variations. The relatively early sunrise and sunset times, with a near-equal split between daylight and nighttime hours, suggest that the forecast period is around the spring equinox. During this time of year, the sun’s path across the sky is relatively balanced, leading to roughly equal periods of daytime heating and nighttime cooling. This likely contributes to the moderate temperature variations between daytime highs and nighttime lows.

The forecast’s validity period, extending until 8 PM on Tuesday, provides a timeframe for the expected weather conditions. While weather patterns can change rapidly, the dominance of the high-pressure system suggests a high degree of confidence in the forecast. The mention of a “settled atmosphere” further emphasizes the stability of the weather pattern, indicating that significant changes are unlikely within the forecast period.

In summary, this forecast paints a clear picture of stable, dry, and relatively calm weather conditions over the islands for the specified period. The Atlantic high-pressure system, coupled with low moisture levels and moderate easterly winds, are the primary drivers of this weather pattern. The forecast suggests little to no disruption from precipitation and generally pleasant conditions for outdoor activities, with calm seas and comfortable temperatures expected.

This extended explanation provides a more in-depth understanding of the meteorological processes at play and the reasons behind the specific weather predictions. It highlights the interconnectedness of various atmospheric elements, such as pressure, humidity, wind, and sea state, and how they contribute to the overall weather pattern. The inclusion of sunrise and sunset times adds further context, providing a more comprehensive picture of the expected environmental conditions during the forecast period. The explicit statement of the forecast’s validity period emphasizes the time frame for which these predictions are considered reliable, offering users valuable information for planning their activities.