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San Fernando

Weather in Сан-Фернандо: What to Expect by Season

Photo: Belchman9006, CC BY 3.0

Weather overview

Сан-Фернандо enjoys a tropical climate with warm temperatures year-round, making it a pleasant destination no matter when you visit. The city experiences two distinct seasons: a dry period and a rainy one, each bringing its own character to the region.

From January to April, Сан-Фернандо sees its driest months, with plenty of sunshine and lower humidity. This is often considered the best time to explore the city and its surroundings, as the weather remains consistently warm without the heavy rains that follow later in the year.

Starting in May, the rainy season gradually sets in, peaking between June and October. While showers can be frequent, they are usually short-lived, and the city retains its warmth, with temperatures rarely dropping below +24 °C even at night.

Temperature

Temperatures in Сан-Фернандо remain stable throughout the year, with daytime highs typically ranging between +31 °C and +33 °C. The warmest months are March through September, when the mercury can occasionally climb to +33 °C, especially in September.

Nighttime temperatures offer slight relief, averaging between +22 °C and +24 °C from January to April, and rising to +24 °C or higher during the rainy season. Even in the coolest months, such as January and December, the difference between day and night is minimal, rarely exceeding 5–7 °C.

The sea around Сан-Фернандо stays warm year-round, with water temperatures ranging from +28 °C in February to +31 °C in September. This makes swimming and water activities enjoyable at any time, though the rainy season may bring occasional rougher conditions.

Average air temperature °C
Average air temperature
Month Minimum Maximum
January 21.8 31
February 22 31.3
March 22.4 32.2
April 23.6 32.5
May 24.4 32.7
June 24.1 31.9
July 24.1 32.1
August 23.9 32.8
September 24.1 33.3
October 23.9 32.5
November 23.6 32
December 22.6 31.2

Precipitation

Rainfall in Сан-Фернандо is highly seasonal, with the dry months of January through April seeing minimal precipitation. During this period, rain is rare, and the city receives as little as 26 mm in February, making it ideal for outdoor activities.

The rainy season begins in May and intensifies from June to November, with August and October being the wettest months. During this time, Сан-Фернандо can receive over 200 mm of rain per month, often in the form of short, heavy downpours. Despite the rain, sunny spells are still common, and the city rarely experiences prolonged overcast weather.

Even in the wettest months, the rain in Сан-Фернандо is usually brief, allowing for plenty of opportunities to explore. However, if you prefer drier conditions, planning your visit between January and April will ensure the most comfortable weather.

Precipitation amount mm
Precipitation amount
Month Precipitation
January 62
February 26.2
March 42.6
April 38.2
May 91.4
June 221.8
July 196.4
August 242.9
September 174.4
October 199.4
November 182.6
December 110.7

What to pack

When visiting Сан-Фернандо during the dry season, lightweight and breathable clothing is essential. Pack loose-fitting shirts, shorts, and dresses to stay comfortable in the warm temperatures, which can reach +32 °C during the day. A wide-brimmed hat and sunglasses will help protect you from the strong tropical sun.

If you’re traveling during the rainy season, from June to November, it’s wise to include a light rain jacket or a compact umbrella in your luggage. Quick-drying fabrics are ideal, as sudden showers can occur even on sunny days. Waterproof footwear or sandals with good grip will also come in handy for navigating wet streets.

Regardless of the season, don’t forget sunscreen, as the sun in Сан-Фернандо can be intense even on cloudy days. A reusable water bottle is also a good idea to stay hydrated, especially if you plan to spend time outdoors. For evenings, a light sweater or shawl may be useful, though temperatures rarely drop below +24 °C.

Average monthly wind m/s
Average monthly wind
Month Wind speed
January 2.8
February 3.4
March 3.4
April 3.6
May 3.6
June 3.1
July 2.4
August 1.7
September 1.7
October 1.9
November 2.1
December 2.5