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Castries

Weather in Кастри: What to Expect by Season

Photo: Wikimedia Commons, CC BY-SA 3.0

Weather overview

The weather in Кастри remains warm year-round, with only subtle shifts in temperature and rainfall defining the seasons. The city enjoys a tropical climate, where the sea and trade winds soften the heat, making even the hottest months comfortable for exploring. Daytime temperatures rarely stray far from 26–30 °C, while nights stay mild, usually around 23–25 °C.

Rainfall in Кастри follows a clear pattern, with a drier stretch from January to April and a wetter period peaking in June, July, and August. Even during the rainier months, showers are often brief and intense, leaving plenty of sunshine for outdoor activities. The transition months—May, September, October, and November—offer a mix of both, with occasional rain but still plenty of dry, sunny days.

For travelers, Кастри is a destination where the weather rarely disrupts plans. The consistency of warmth and the cooling influence of the Caribbean Sea make it easy to enjoy beaches, hikes, or city strolls at almost any time of year. The key is to pack for humidity and occasional rain, especially if visiting between June and November.

Temperature

Temperatures in Кастри stay steady throughout the year, with only a few degrees separating the warmest and coolest months. The hottest period falls between May and October, when daytime highs reach 30–31 °C, while nights remain pleasant at around 25 °C. Even in the cooler months, such as January and February, the mercury rarely dips below 23 °C at night, and daytime highs still hover around 28–29 °C.

The sea temperature around Кастри mirrors the air warmth, staying inviting year-round. From June to October, the water reaches its peak at 28–30 °C, ideal for swimming, snorkeling, or simply cooling off. Even in the cooler months, such as February and March, the sea remains at a comfortable 27 °C, making it hard to resist a dip. The consistency of both air and water temperatures means Кастри is always ready for beachgoers.

While Кастри doesn’t experience extreme temperature swings, the humidity can make the heat feel more intense, particularly in August and September. However, the trade winds help keep the air moving, preventing the weather from becoming oppressive. For those sensitive to heat, the slightly cooler and drier months of December to April may feel more comfortable, though the difference is subtle.

Average air temperature °C
Average air temperature
Month Minimum Maximum
January 23.4 28.8
February 23 28.8
March 23.6 29.3
April 24.3 30.1
May 25 31.2
June 25.2 30.8
July 25.2 30.6
August 25.3 31.1
September 25.4 31.8
October 25.4 31.3
November 24.7 30.5
December 24.1 29.3

Precipitation

Rainfall in Кастри is seasonal, with a distinct dry period and a wetter stretch that shapes the best times to visit. The driest months are February, March, and April, when rainfall drops to around 38–52 mm, and sunny days dominate. This is often considered the ideal time to explore Кастри, as rain is rare and the weather is reliably warm without being overly humid.

The wet season in Кастри begins in June and lasts through November, with the heaviest rainfall occurring in July and August at over 100 mm per month. However, even during this period, rain typically comes in short, intense bursts, often in the late afternoon or evening, leaving mornings and early afternoons dry. September and October see a slight decrease in rainfall, though it remains higher than in the dry months.

Travelers visiting Кастри between June and November should be prepared for occasional downpours, but they rarely last long enough to disrupt plans. The rain also brings lush greenery to the island, making it a beautiful time to explore nature. For those who prefer drier conditions, January to April offers the most predictable weather, with minimal rain and plenty of sunshine.

Precipitation amount mm
Precipitation amount
Month Precipitation
January 65.9
February 63
March 52.1
April 38.5
May 39.9
June 111
July 116.6
August 103.6
September 75.8
October 75.5
November 88.8
December 48.4

What to pack

When packing for Кастри, lightweight and breathable clothing is essential year-round, given the warm temperatures and humidity. Opt for loose-fitting fabrics like linen or cotton to stay comfortable, especially during the hottest months from May to October. A wide-brimmed hat, sunglasses, and high-SPF sunscreen are must-haves, as the tropical sun can be strong even on cloudy days.

For those visiting Кастри during the wetter months of June to November, a compact rain jacket or travel umbrella is a good idea. While rain showers are usually brief, they can be heavy, so waterproof footwear or sandals with good grip will help you navigate wet streets or trails. A quick-dry towel or a change of clothes in your daypack can also come in handy after a sudden downpour.

Even in the cooler months, such as January and February, Кастри remains warm, so heavy layers aren’t necessary. However, a light sweater or shawl might be useful for breezy evenings or air-conditioned spaces. If you plan to explore beyond the beaches, comfortable walking shoes are recommended, as some trails or uneven paths may require sturdy footwear. Don’t forget a reusable water bottle to stay hydrated in the heat.

Average monthly wind m/s
Average monthly wind
Month Wind speed
January 5.8
February 6
March 5.8
April 5.4
May 5.8
June 5.8
July 5.6
August 4.6
September 3.8
October 4.4
November 4.8
December 5