September weather forecastSpeightstown, Barbados

Weather in September

In September, the whole of Speightstown experiences the highest rainfall of 174mm (6.85"), yet the temperature remains pleasant. A slight decrease in daylight hours begins as summer draws towards the end. The high sea temperature continues to allow for daily swimming and surfing. The UV index remains at its peak, highlighting the need for sun-safety. Even with high rainfall, September provides a quintessential tropical holiday experience.

Temperature

Speightstown records an average high-temperature of a still hot 30°C (86°F) in September, maintaining temperature consistency with the previous month. An average minimum temperature of 23°C (73.4°F) is recorded in Speightstown, Barbados, during the month of September.

Rainfall

In Speightstown, in September, during 16 rainfall days, 174mm (6.85") of precipitation is typically accumulated. Throughout the year, there are 165 rainfall days, and 1310mm (51.57") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater is September, with an average sea temperature of 29°C (84.2°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

In September, the average length of the day in Speightstown, Barbados, is 12h and 12min.
On the first day of September, sunrise is at 05:47 and sunset at 18:09. On the last day of the month, sunrise is at 05:47 and sunset at 17:48 AST.

Sunshine

In September, the average sunshine in Speightstown is 8h.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 12 transforms into the following instructions:
Put into action all crucial precautions. Defense against sun damage is a must. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Sunscreen of at least SPF 30 should be applied generously and reapplied often on overcast days, especially post swim or outdoor exercise. Be mindful! Sand and water reflections can up the Sun's UV exposure.