September weather forecast
Koror, Palau

September sees a slight escalation in heat with high temperatures rising back to 28.8°C (83.8°F), mildly higher than August's 28.7°C (83.7°F). The month marks the close of summer, with Koror remaining resilient despite the fluctuating weather patterns typical of this time frame. Despite an increase in wind speed, September showcases one of the lower visibility levels of the year at 9 km. As tropical storm activity tends to peak during this period, the city witnesses spectacular atmospheric events. Ultimately, September in Koror delights with a captivating display of tropical weather elements.

Temperature

The advent of September in Koror brings an average high-temperature of a still moderately hot 28.8°C (83.8°F), almost identical to the preceding month. Koror's average temperature during the nights of September is recorded at a still warm 28°C (82.4°F).

Heat index

The heat index value for September is computed to be a hot 33°C (91.4°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The average relative humidity in September in Koror is 76%.

Rainfall

In Koror, Palau, during September, the rain falls for 23.4 days and regularly aggregates up to 182mm (7.17") of precipitation. In Koror, during the entire year, the rain falls for 303.8 days and collects up to 2074mm (81.65") of precipitation.

Sea temperature

April through December, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Koror, Palau.
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Koror, the average length of the day in September is 12h and 10min.
On the first day of September in Koror, Palau, sunrise is at 05:54 and sunset at 18:09. On the last day of the month, sunrise is at 05:50 and sunset at 17:53 +09.

Sunshine

In September, the average sunshine in Koror is 8.5h.

UV index

January, September and November, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Alert! Sand and water increase UV exposure due to their reflective properties.