Weather overview
Исалько enjoys a tropical climate with distinct wet and dry seasons, making it a destination where timing can shape your experience. From November to April, the weather in Исалько is predominantly dry, with warm days and cooler nights. This period is ideal for exploring the region’s landscapes without frequent rain interruptions.
The wet season in Исалько begins in May and lasts through October, bringing heavier rainfall, especially in June and September. While downpours can be intense, they are often short-lived, leaving plenty of time for outdoor activities. The lush greenery that emerges during these months adds a vibrant contrast to the dry season’s drier terrain.
Temperature
Temperatures in Исалько remain consistently warm year-round, with daytime highs typically ranging between +30 °C and +35 °C. The hottest months are March and April, when the mercury can climb to +34.8 °C and +34.9 °C, respectively. Evenings offer slight relief, with nighttime lows dropping to around +19 °C in the dry season.
During the wet season, temperatures in Исалько become slightly milder, though still warm. June and July see highs of +31.3 °C and +32.8 °C, while nights hover around +20 °C. The ocean remains inviting, with water temperatures staying above +29 °C throughout the year, peaking at +31 °C in May and July.
| Month | Minimum | Maximum |
|---|---|---|
| January | 18.7 | 31.6 |
| February | 18.6 | 32.7 |
| March | 19.8 | 34.8 |
| April | 20.6 | 34.9 |
| May | 21.3 | 34.5 |
| June | 20.4 | 31.3 |
| July | 20.5 | 32.8 |
| August | 20.4 | 32.3 |
| September | 20.3 | 31.6 |
| October | 20.1 | 30.9 |
| November | 19.7 | 30.3 |
| December | 19.2 | 30.9 |
Precipitation
Rainfall in Исалько is highly seasonal, with the dry months of January to March seeing minimal precipitation—just 5.5 mm to 16 mm per month. The transition begins in April, when showers become more frequent, averaging 68.3 mm. By May, the wet season is in full swing, with monthly rainfall jumping to 123.3 mm.
June marks the peak of the rainy season in Исалько, with a significant 370.5 mm of rain. While July and August see slightly less precipitation (164.6 mm and 170.7 mm, respectively), heavy downpours remain common. Rainfall tapers off in November, signaling the return of drier conditions.
| Month | Precipitation |
|---|---|
| January | 5.5 |
| February | 9 |
| March | 16 |
| April | 68.3 |
| May | 123.3 |
| June | 370.5 |
| July | 164.6 |
| August | 170.7 |
| September | 236.8 |
| October | 188.8 |
| November | 87 |
| December | 18.3 |
What to pack
For a trip to Исалько during the dry season, pack lightweight, breathable clothing to stay comfortable in the warm temperatures. A light jacket or shawl is useful for cooler evenings, especially in January and February, when nights can dip to +18.6 °C. Don’t forget sunscreen, a hat, and sunglasses to protect against the strong tropical sun.
If visiting Исалько in the wet season, waterproof gear is essential. A compact umbrella or a rain jacket will help you stay dry during sudden downpours. Quick-drying clothing and waterproof footwear are practical for navigating wet terrain. Despite the rain, the warmth means you’ll still want light layers, so pack accordingly.
| Month | Wind speed |
|---|---|
| January | 2.4 |
| February | 2.4 |
| March | 2.1 |
| April | 1.8 |
| May | 1.7 |
| June | 1.3 |
| July | 1.8 |
| August | 1.5 |
| September | 1.3 |
| October | 1.5 |
| November | 2.3 |
| December | 2.5 |