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
September
Weather in September
Temperature
September's arrival brings an average high-temperature of a still tropical 31.6°C (88.9°F), slightly deviating from August's 30.8°C (87.4°F). In Jamba, the average temperature during the nights of September drops to a moderately hot 23.2°C (73.8°F).Heat index
For most parts of September, the heat index is appraised at a burning hot 45°C (113°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.One should consider that heat index numbers are for shaded settings and light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In Jamba, Guinea-Bissau, the average relative humidity in September is 84%.Rainfall
In September, in Jamba, the rain falls for 23.7 days. Throughout September, 152mm (5.98") of precipitation is accumulated. In Jamba, Guinea-Bissau, during the entire year, the rain falls for 109.1 days and collects up to 654mm (25.75") of precipitation.Daylight
The average length of the day in September in Jamba is 12h and 12min.On the first day of September in Jamba, sunrise is at 06:51 and sunset at 19:12. On the last day of the month, sunrise is at 06:51 and sunset at 18:52 GMT.
Sunshine
In Jamba, Guinea-Bissau, the average sunshine in September is 7h.UV index
In Jamba, Guinea-Bissau, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Jamba during September?
What is the average humidity in September in Jamba?
How much does it rain in Jamba in September?
How many hours of daylight does Jamba have in September?
When are sunrise and sunset in September in Jamba?
How many hours of sunshine does Jamba have in September?
What is the UV index intensity in September in Jamba?
Average temperature in September
Jamba, Guinea-Bissau
- Average high temperature in September: 31.6°C
The warmest month (with the highest average high temperature) is April (41.3°C).
The month with the lowest average high temperature is August (30.8°C).
- Average low temperature in September: 23.2°C
The month with the highest average low temperature is June (25.3°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).
Average pressure in September
Jamba, Guinea-Bissau
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is July (1012.6mbar).
The month with the lowest atmospheric pressure is April (1009.7mbar).
Average wind speed in September
Jamba, Guinea-Bissau
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is February (9.8km/h).
The calmest month (with the lowest average wind speed) is October (6.2km/h).
Average humidity in September
Jamba, Guinea-Bissau
- Average humidity in September: 84%
The month with the highest relative humidity is August (85%).
The month with the lowest relative humidity is January (20%).
Average rainfall in September
Jamba, Guinea-Bissau
- Average rainfall in September: 152mm
The wettest month (with the highest rainfall) is August (224mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Jamba, Guinea-Bissau
- Average rainfall days in September: 23.7 days
The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is January (0.1 days).
Average daylight in September /
Average sunshine in September
Jamba, Guinea-Bissau
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is April (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).
Average sunshine days in September
Jamba, Guinea-Bissau
- Average sunshine days in September: 4.4 days
The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (2.5 days).
Average UV index in September
Jamba, Guinea-Bissau
- Average UV index in September: 7
The months with the highest UV index are March, April and May (UV index 8).
The month with the lowest UV index is August (UV index 6).
Average cloud cover in September
Jamba, Guinea-Bissau
- Average cloud cover in September: 51
The month with the most cloud cover is August (Cloud cover 62).
The months with the least cloud cover are March and April (Cloud cover 6).
Average visibility in September
Jamba, Guinea-Bissau
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are August and September (7km).
