October weather forecast
Santo Antonio, São Tomé and Príncipe

In Santo Antonio, October sees the heaviest rainfall throughout the year, accumulating around 398mm (15.67"). In comparison with September, the weather in October turns significantly wetter and a little cooler. Despite the rain-soaked overhead, daylight equalizes the ambiance with an average of 4 hours of sunlight. October's sea temperature echoes September's results, maintaining appeal for water activities. Given the robust UV index throughout October, taking precautions against sun damage is essential.

Temperature

In October, Santo Antonio's weather conditions record an average high-temperature of a still warm 27.5°C (81.5°F), demonstrating little divergence from the preceding month. In October, Santo Antonio's temperature tends to fall to an average low of 21.4°C (70.5°F) during the night.

Heat index

In October, the heat index is computed to be a tropical 32°C (89.6°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

October is the most humid month in Santo Antonio, with an average relative humidity of 89%.

Rainfall

The month with the most rainfall is October, when the rain falls for 25 days and typically aggregates up to 398mm (15.67") of precipitation.

Sea temperature

In Santo Antonio, São Tomé and Príncipe, the average seawater temperature in October is 27°C (80.6°F).
Note: Swimming, diving, and similar water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

The average length of the day in October in Santo Antonio, São Tomé and Príncipe, is 12h and 5min.
On the first day of the month, sunrise is at 05:16 and sunset at 17:22. On the last day of October, sunrise is at 05:12 and sunset at 17:15 GMT.

Sunshine

In October, the average sunshine is 3h.

UV index

The months with the highest UV index in Santo Antonio are January through May, August through November, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 12 during October translates into the following directions:
Employ all critical precautions. Guarding against sun damage is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days. Every two hours, apply and reapply an SPF 30+ broad-spectrum sunscreen, especially after swimming or engaging in outdoor activities. Take note! Sand and water reflections strengthen the Sun's UV exposure.