Last updated: June 24, 2025
In September, the average temperature in La Selva Beach, United States hovers around 18°C (65°F), offering pleasant weather for exploration. However, be prepared for a range: temperatures can dip to a minimum of 8°C (47°F) and soar to a maximum of 37°C (98°F). With a mere 2 mm (0.1 in) of precipitation over 0 days, the chances of rain are low, allowing you to enjoy the outdoors. Finally, the average humidity stands at 55%, contributing to the comfortable atmosphere of this charming destination.
In September in La Selva Beach, the average temperature is 18°C (65°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 8°C (47°F). This range makes it a great time to visit, as you can enjoy warm days while still having cooler evenings to relax.
In La Selva Beach in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.
In La Selva Beach in September humidity is 55%. With an average temperature of 18°C (65°F), this humidity feels like a gentle embrace, creating a comfortable yet slightly sticky atmosphere that is perfect for leisurely strolls and outdoor adventures.
In La Selva Beach in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in La Selva Beach.
UV Risk Categories
Weather in La Selva Beach varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in La Selva Beach, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (51°F) | 122 mm (4.8 inches) | 82% | moderate |
| February Weather | 11°C (52°F) | 105 mm (4.1 inches) | 84% | moderate |
| March Weather | 12°C (54°F) | 88 mm (3.5 inches) | 82% | very high |
| April Weather | 13°C (57°F) | 32 mm (1.2 inches) | 78% | very high |
| May Weather | 15°C (59°F) | 19 mm (0.7 inches) | 71% | extreme |
| June Weather | 17°C (62°F) | 1 mm (0.1 inches) | 64% | extreme |
| July Weather | 17°C (63°F) | 1 mm (0.0 inches) | 58% | extreme |
| August Weather | 18°C (65°F) | 1 mm (0.0 inches) | 54% | very high |
| September Weather | 18°C (65°F) | 2 mm (0.1 inches) | 55% | very high |
| October Weather | 16°C (62°F) | 22 mm (0.9 inches) | 62% | high |
| November Weather | 13°C (56°F) | 42 mm (1.7 inches) | 78% | moderate |
| December Weather | 10°C (51°F) | 92 mm (3.6 inches) | 80% | moderate |