November weather forecast
São Tomé, São Tomé and Príncipe

November paints a vivid picture of fluctuating weather patterns in the archipelagic nation. The span of temperature swings between 22°C (71.6°F) when it's cooled down and accelerates to 29°C (84.2°F), providing a harmonious blend of pleasant and warm climates. With the onset of higher temperatures, November brings back the memories of early-year weather, setting a stage for the year-end with a blooming landscape in the tropics.

Temperature

As São Tomé welcomes November, the average high-temperature is noted at a still moderately hot 29°C (84.2°F), closely aligning with the preceding month. In São Tomé, an average nighttime temperature of 22°C (71.6°F) is expected during November.

Heat index

November's average heat index is estimated at a very hot 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The months with the highest humidity are January, November and December, with an average relative humidity of 85%.

Rainfall

In São Tomé, during November, the rain falls for 11 days and regularly aggregates up to 99mm (3.9") of precipitation. In São Tomé, during the entire year, the rain falls for 94 days and collects up to 885mm (34.84") of precipitation.

Sea temperature

In São Tomé, São Tomé and Príncipe, in November, the average water temperature is 27°C (80.6°F).
Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.

Daylight

The average length of the day in November is 12h and 7min.
On the first day of the month, sunrise is at 05:13 and sunset at 17:19. On the last day of November, sunrise is at 05:18 and sunset at 17:25 GMT.

Sunshine

In São Tomé, the average sunshine in November is 4.5h.

UV index

The months with the highest UV index are January through May, August through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 12 in November translates into these instructions:
Enforce all necessary precautions, unprotected skin might burn swiftly. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Apply generously and frequently a broad-spectrum SPF 30+ sunscreen every two hours, or immediately after swimming or any outdoor exercise. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.