St. Kitts and Nevis Weather Forecast

This detailed weather forecast, valid until 8 pm on Monday, June 30, 2025, paints a picture of generally fair conditions influenced by a high-pressure system, interspersed with periods of cloudiness and a moderate chance of showers. The forecast, issued on June 29, 2025, highlights the interplay between the dominant high-pressure ridge and a persistent lower atmospheric breeze, creating a nuanced weather pattern for the islands.

The overarching influence of the high-pressure ridge acts as a stabilizing force, suppressing the development of significant weather events. High pressure systems are typically associated with sinking air, which inhibits cloud formation and precipitation. However, the presence of a moderate to fresh easterly breeze introduces a dynamic element to the forecast. This breeze, originating from the east, carries moisture-laden air over the islands, leading to the development of shallow clouds and the possibility of showers.

Tonight’s forecast calls for partly cloudy and slightly hazy conditions, with a low probability of showers. The slight haze suggests the presence of particulate matter in the atmosphere, potentially reducing visibility. The 20% chance of showers indicates a relatively low likelihood of precipitation, with any showers likely being brief and light. The overnight temperatures are expected to be comfortable, ranging between 26°C (79°F) and 31°C (88°F).

As Monday progresses, the chance of showers increases slightly to 40%, categorized as a moderate chance. These showers are most likely to occur during the late morning hours, possibly as a result of daytime heating and increased atmospheric instability. The forecast also mentions partly sunny conditions and slight haze, indicating a mix of sunshine and cloud cover throughout the day. The continued presence of haze suggests that air quality may be slightly compromised.

The easterly winds, blowing at speeds of 17 to 31 km/h (10 to 20 mph), with potential gusts up to 48 km/h (30 mph), play a significant role in shaping the weather conditions. These relatively brisk winds contribute to the development of shallow clouds and the potential for showers. They also influence the sea state, creating waves of 1.5 to 2.1 meters (5 to 7 feet), which could impact maritime activities. The wind direction, consistently from the east, further suggests the influence of a larger weather pattern extending beyond the immediate vicinity of the islands.

Finally, the forecast provides the times for sunrise and sunset on Monday, June 30, 2025. Sunrise is predicted at 5:40 am, marking the beginning of daylight hours. Sunset is anticipated at 6:49 pm, signaling the close of the day and the transition to nighttime. These times provide valuable information for planning outdoor activities and understanding the diurnal cycle of temperature and weather conditions. Overall, the forecast suggests generally pleasant conditions with a touch of variability introduced by the interplay of high pressure and a persistent easterly breeze.