Weather overview
The weather in Гран-Басам remains warm year-round, with temperatures rarely straying far from 25–32 °C. The city’s coastal location keeps the climate stable, though seasonal shifts in rainfall create distinct periods. Dry months offer the most comfortable conditions, while the rainy seasons bring heavier downpours and higher humidity.
From November to March, Гран-Басам enjoys its driest and sunniest weather, with temperatures hovering around 28–32 °C. This is often the preferred time for visitors, as the lower rainfall and steady warmth make outdoor activities more enjoyable. The ocean stays warm, typically around 28 °C, ideal for swimming or relaxing on the beach.
Between June and October, the city experiences its wettest months, with June and October seeing the heaviest rainfall. While temperatures dip slightly to 25–29 °C, the increased moisture can make the air feel muggier. Despite the rain, Гран-Басам retains its tropical charm, with lush landscapes and fewer crowds during these periods.
Temperature
Temperatures in Гран-Басам stay consistently warm, with daytime highs ranging from 28 to 32 °C for most of the year. The hottest months are February and March, when the mercury can reach 32 °C, while the coolest period falls between July and September, with highs around 28 °C. Nighttime temperatures rarely drop below 23–26 °C, ensuring mild evenings year-round.
The ocean near Гран-Басам mirrors the air temperature, staying warmest from April to June at around 29 °C. Even during the cooler months of July and August, the water remains pleasant at 23–25 °C, though it may feel slightly brisker compared to the peak of the dry season. This makes swimming and water activities possible throughout the year.
While Гран-Басам doesn’t experience extreme temperature swings, the slight cooling in July and August can be a welcome relief from the heat. These months also coincide with lower rainfall, offering a balance between comfortable warmth and fewer downpours.
| Month | Minimum | Maximum |
|---|---|---|
| January | 25.4 | 31.9 |
| February | 26.2 | 32 |
| March | 25.9 | 31.6 |
| April | 26.1 | 31.8 |
| May | 25.7 | 31.3 |
| June | 24.7 | 29.2 |
| July | 24.2 | 28.2 |
| August | 23.5 | 27.9 |
| September | 24.2 | 28.4 |
| October | 24.8 | 29.6 |
| November | 25.1 | 30.9 |
| December | 25.1 | 31.6 |
Precipitation
Rainfall in Гран-Басам is highly seasonal, with two distinct wet periods. The first and most intense occurs in June, when the city receives over 440 mm of rain, often in heavy, short-lived downpours. A second, shorter rainy season arrives in October, bringing around 276 mm of precipitation. These months can see frequent showers, though they rarely last all day.
The dry season in Гран-Басам spans from November to March, with rainfall dropping to as little as 38–76 mm per month. January and December are particularly dry, making them ideal for exploring the city’s beaches, historic sites, and outdoor markets without the interruption of rain. Even during the wetter months, mornings are often clear, with rain typically arriving in the afternoon or evening.
Between the two rainy seasons, Гран-Басам experiences a brief respite in July and August, when rainfall decreases to around 70–90 mm per month. While not entirely dry, these months offer a break from the heavier downpours, making them a good time to visit if you prefer fewer crowds and don’t mind occasional showers.
| Month | Precipitation |
|---|---|
| January | 38.1 |
| February | 46.2 |
| March | 76.3 |
| April | 107.3 |
| May | 139.2 |
| June | 444.3 |
| July | 90.7 |
| August | 71 |
| September | 90.2 |
| October | 276.1 |
| November | 158.9 |
| December | 69.3 |
What to pack
For a trip to Гран-Басам during the dry season, pack lightweight, breathable clothing to stay comfortable in the 28–32 °C heat. A wide-brimmed hat, sunglasses, and high-SPF sunscreen are essential for protection against the strong tropical sun. Since evenings remain warm, a light jacket or shawl may be useful, though temperatures rarely drop below 25 °C.
If visiting during the rainy months, waterproof footwear and a compact umbrella will help you navigate sudden downpours. Quick-drying fabrics are ideal, as humidity can make heavier materials uncomfortable. A light raincoat or poncho is also useful, though the rain often passes quickly, leaving plenty of time to explore between showers.
Regardless of the season, Гран-Басам’s coastal location means the ocean is always an option. Pack swimwear, a beach towel, and water shoes if you plan to spend time on the sand or in the water. A reusable water bottle is also a good idea, as staying hydrated is key in the warm climate.
| Month | Wind speed |
|---|---|
| January | 2.8 |
| February | 3.2 |
| March | 3.5 |
| April | 3.4 |
| May | 3.2 |
| June | 3.3 |
| July | 3.5 |
| August | 3.6 |
| September | 3.7 |
| October | 3.6 |
| November | 2.9 |
| December | 2.6 |