Last updated: June 24, 2025
In September, the average temperature in Waialua, United States hovers around 26°C (79°F), providing a pleasantly warm climate. You'll experience a minimum of 23°C (74°F) and a maximum of 29°C (84°F), perfect for enjoying outdoor activities. However, keep in mind that there is an average precipitation of 13 mm (0.5 in) spread over 3 days, contributing to an average humidity of 82%.
In September in Waialua, the average temperature is 26°C (79°F). The maximum can reach 29°C (84°F), and the minimum can be as low as 23°C (74°F). This mild and pleasant weather makes Waialua an ideal destination for travelers seeking comfortable conditions.
In Waialua in September, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.
In Waialua in September, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.
In Waialua in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Waialua.
UV Risk Categories
Weather in Waialua varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Waialua, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 23°C (73°F) | 14 mm (0.5 inches) | 78% | very high |
February Weather | 22°C (72°F) | 74 mm (2.9 inches) | 79% | very high |
March Weather | 22°C (72°F) | 65 mm (2.5 inches) | 78% | extreme |
April Weather | 23°C (74°F) | 26 mm (1.0 inches) | 81% | extreme |
May Weather | 24°C (75°F) | 20 mm (0.8 inches) | 82% | extreme |
June Weather | 25°C (77°F) | 36 mm (1.4 inches) | 82% | extreme |
July Weather | 25°C (78°F) | 7 mm (0.3 inches) | 83% | extreme |
August Weather | 26°C (79°F) | 11 mm (0.5 inches) | 83% | extreme |
September Weather | 26°C (79°F) | 13 mm (0.5 inches) | 82% | extreme |
October Weather | 25°C (78°F) | 44 mm (1.7 inches) | 81% | extreme |
November Weather | 24°C (76°F) | 21 mm (0.8 inches) | 80% | very high |
December Weather | 23°C (74°F) | 77 mm (3.0 inches) | 79% | high |