Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Lemba's weather in September indicates an average high-temperature of a still warm 25.5°C (77.9°F), nearly consistent with the 24.8°C (76.6°F) of August. September nights register a minor temperature decline, steadying at a still warm 24.6°C (76.3°F).Humidity
August through October, with an average relative humidity of 83%, are the most humid months in Lemba.Rainfall
In Lemba, during September, the rain falls for 15.8 days and regularly aggregates up to 35mm (1.38") of precipitation. In Lemba, São Tomé and Príncipe, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.Daylight
In Lemba, São Tomé and Príncipe, the average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 05:30 and sunset at 17:37. On the last day of September, in Lemba, sunrise is at 05:20 and sunset at 17:27 GMT.
Sunshine
In Lemba, the average sunshine in September is 5.4h.UV index
The average daily maximum UV index in September in Lemba is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the usual temperature for Lemba in September?
What are the most humid months in Lemba?
What is the average humidity in September in Lemba?
How many days does it rain in September in Lemba?
How many hours of daylight does Lemba have in September?
What time are sunrise and sunset in September in Lemba?
How long on average sun shines in September in Lemba?
What is the UV index reading in September in Lemba?
Average temperature in September
Lemba, São Tomé and Príncipe
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).
- Average low temperature in September: 24.6°C
The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).
Average pressure in September
Lemba, São Tomé and Príncipe
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).
Average wind speed in September
Lemba, São Tomé and Príncipe
- Average wind speed in September: 16.8km/h
The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).
Average humidity in September
Lemba, São Tomé and Príncipe
- Average humidity in September: 83%
The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).
Average rainfall in September
Lemba, São Tomé and Príncipe
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in September
Lemba, São Tomé and Príncipe
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).
Average daylight in September /
Average sunshine in September
Lemba, São Tomé and Príncipe
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is November (Average daylight: 12h and 6min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).
Average sunshine days in September
Lemba, São Tomé and Príncipe
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).
Average UV index in September
Lemba, São Tomé and Príncipe
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Lemba, São Tomé and Príncipe
- Average cloud cover in September: 62
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).
Average visibility in September
Lemba, São Tomé and Príncipe
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
Lemba, São Tomé and Príncipe
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