Normal weather for São Tomé in September
It's hot in September in São Tomé with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 30°C. At night, you can expect temperatures between 24°C and 25°C.
In September, there is an average of 45 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
São Tomé in September |
New York | ||
|---|---|---|---|
 Average Temperature |
30°C | 27°C | |
 High Temp |
30°C | 31°C | |
| Low Temp |
28°C | 21°C | |
 Total Precipitation |
45 mm | 57 mm | |
| Rainy Days |
9 days | 9 days | |
Start of September
The month of September starts in São Tomé with hot temps, averaging around 30°C during the day and nights around 24°C. There’s little chance of precipitation. The weather’s mostly sunny and dry. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps stay steady at around 30°C, with nights around 25°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in São Tomé is around 30°C, while nighttime temps are about 25°C. A shower might pop up, but overall, the weather will be dry and sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit São Tomé?
September is a good month to be in São Tomé for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records for São Tomé in September
Check out the climate of São Tomé for all months and discover the best travel time
August
Daily Temperature in September in São Tomé
This chart shows the average daily high and low temperatures in September for São Tomé, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in São Tomé
The chart below shows the average daily precipitation in September for São Tomé, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 9 days of precipitation in São Tomé.
Daily UV Index in September in São Tomé
This chart shows the average daily UV index in September in São Tomé, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in São Tomé Over the Years
This chart shows the average temperature in September in São Tomé, measured in degrees Celsius, over the past few years.
Total Precipitation in September in São Tomé Over the Years
This chart shows the average precipitation in September in São Tomé, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in September for São Tomé
Click on any day in September to get detailed info about the usual weather on that day in São Tomé. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in São Tomé
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Average Weather in São Tomé by Month
Click on a month below to see detailed weather info for São Tomé. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
