Last updated: August 23, 2025
In June, the average temperature in San Isidro, Costa Rica hovers around 23°C (73°F), with a comfortable range where the minimum can drop to 20°C (68°F) and the maximum can reach 26°C (79°F). Expect plentiful rain, with average precipitation of 663 mm (26.1 in) over a span of 30 days and a high humidity level of 84%. Perfect for those who enjoy a lush and vibrant atmosphere!
In June in San Isidro, the average temperature is 23°C (73°F). The maximum can reach 26°C (79°F), and the minimum can be as low as 20°C (68°F). This makes it an ideal time to explore San Isidro comfortably, whether you're enjoying outdoor activities or relaxing at local attractions.
In San Isidro in June, the total precipitation amount is 663 mm (26.1 in) over the course of 30 days.
In San Isidro in June, humidity is 84%. With an average temperature of 23°C (73°F), this humidity feels like a warm, thick blanket wrapping around you, making travel slightly exhausting but also uniquely invigorating as you navigate through the vibrant atmosphere.
In San Isidro in June, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Isidro, you can check here.
UV Risk Categories
Weather in San Isidro varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in San Isidro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 22°C (72°F) | 194 mm (7.6 inches) | 68% | extreme |
| February Weather | 22°C (73°F) | 99 mm (3.9 inches) | 68% | extreme |
| March Weather | 23°C (73°F) | 120 mm (4.7 inches) | 66% | extreme |
| April Weather | 23°C (73°F) | 350 mm (13.8 inches) | 67% | extreme |
| May Weather | 23°C (73°F) | 742 mm (29.2 inches) | 69% | extreme |
| June Weather | 23°C (73°F) | 663 mm (26.1 inches) | 84% | extreme |
| July Weather | 22°C (73°F) | 784 mm (30.8 inches) | 85% | extreme |
| August Weather | 22°C (73°F) | 838 mm (33.0 inches) | 82% | extreme |
| September Weather | 22°C (72°F) | 766 mm (30.1 inches) | 81% | extreme |
| October Weather | 22°C (72°F) | 937 mm (36.9 inches) | 80% | extreme |
| November Weather | 22°C (72°F) | 885 mm (34.8 inches) | 80% | extreme |
| December Weather | 22°C (72°F) | 354 mm (13.9 inches) | 72% | extreme |