Weather in San Lázaro: What to Expect by Season

San Lázaro sits in a subtropical climate where warmth lingers through most of the year. The hottest stretch arrives in January, when daytime highs often climb above 35 °C, while the coolest period falls between June and July, with nights dipping to 15–16 °C. Even in these cooler months, the days remain mild, rarely straying far from 20–28 °C.

The year in San Lázaro divides neatly into three distinct phases: a wet season from October to March, a dry stretch from June to September, and transitional months in between. Travelers will notice the shift most in the air—humid and heavy during the rains, crisp and clear when the dry season takes hold.

Temperatures in San Lázaro stay consistently warm, though the range between day and night can be striking. In January, afternoons often reach 35 °C, while mornings hover around 24–25 °C. By July, the pattern softens, with daytime highs near 28 °C and cooler evenings around 15 °C.

The most stable warmth arrives in September, when San Lázaro sees highs of 33 °C and lows of 20 °C, making it one of the more predictable months for outdoor plans. The sharpest drop comes in May, as the mercury slides from 28 °C in the afternoon to 17 °C by dawn—a shift worth packing for if you’re sensitive to cooler nights.

San Lázaro sees its heaviest rains from December to March, with monthly totals often exceeding 150 mm. January and March are particularly wet, each bringing around 180 mm of rain, often in short, intense bursts that give way to sunshine. The dry season, from June to August, offers a stark contrast, with July recording just 25 mm of rain—ideal for uninterrupted travel.

The transition months, like April and November, bring moderate rainfall, usually between 90–150 mm. These periods can be unpredictable, with sunny mornings followed by afternoon downpours. If you’re visiting San Lázaro during these months, a light rain jacket or umbrella is a practical addition to your bag.

For a trip to San Lázaro in the wet season, lightweight, quick-drying clothing is essential. Pack breathable fabrics to stay comfortable in the heat, along with a compact umbrella or a waterproof layer for sudden showers. Footwear should handle both rain and sun—sandals with grip or light sneakers work well.

During the dry season, layers become more useful. Mornings and evenings in June or July can feel cool, so a light sweater or long-sleeve shirt is handy. Sunglasses and a hat are year-round necessities, as the sun in San Lázaro remains strong even in the cooler months. If you’re visiting in May or September, a mix of short and long sleeves will cover the temperature swings.