September weather forecastJomo, Ghana

September

Weather in September

The first month of the autumn, September, is still a warm month in Jomo, Ghana, with an average temperature ranging between min 23.5°C (74.3°F) and max 27°C (80.6°F).

Temperature

During September, Jomo observes a subtle ascent to a still moderately hot 27°C (80.6°F) from August's 26.7°C (80.1°F) in the average high-temperature. Nights in September showcase an average temperature of 23.5°C (74.3°F), slightly cooler than the daytime.

Heat index

The heat index in September is computed to be a tropical 30°C (86°F). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

September is the most humid month, with an average relative humidity of 87%.

Rainfall

In Jomo, in September, during 23.4 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Jomo, during the entire year, the rain falls for 268.5 days and collects up to 987mm (38.86") of precipitation.

Daylight

In Jomo, the average length of the day in September is 12h and 9min.
On the first day of September, sunrise is at 06:00 and sunset at 18:13. On the last day of the month, sunrise is at 05:54 and sunset at 17:59 GMT.

Sunshine

In Jomo, the average sunshine in September is 6.1h.

UV index

The months with the lowest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

In September, the average high-temperature and low-temperature are 27°C (80.6°F) and 23.5°C (74.3°F) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 30°C (86°F).

September is the most humid month, with an average relative humidity of 87%.

The average relative humidity in September is 87%.

In September, in Jomo, the rain falls for 23.4 days. Throughout September, 81mm (3.19") of precipitation is accumulated.

The average day length in September is 12h and 9min.

On the first day of September, sunrise is at 06:00 and sunset at 18:13. On the last day of the month, sunrise is at 05:54 and sunset at 17:59 GMT.

The average sunshine duration in September is 6.1h.

June through September, with an average maximum UV index of 6, are months with the lowest UV index.

In Jomo, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jomo, Ghana

  • Average high temperature in September: 27°C

The warmest month (with the highest average high temperature) is April (31.1°C).
The month with the lowest average high temperature is August (26.7°C).

  • Average low temperature in September: 23.5°C

The month with the highest average low temperature is March (26.4°C).
The coldest month (with the lowest average low temperature) is August (23.2°C).

Average pressure in September
Jomo, Ghana

  • Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is July (1014mbar).
The month with the lowest atmospheric pressure is February (1010mbar).

Average wind speed in September
Jomo, Ghana

  • Average wind speed in September: 12.2km/h

The windiest month (with the highest average wind speed) is July (13.5km/h).
The calmest month (with the lowest average wind speed) is November (9.5km/h).

Average humidity in September
Jomo, Ghana

  • Average humidity in September: 87%

The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is January (76%).

Average rainfall in September
Jomo, Ghana

  • Average rainfall in September: 81mm

The wettest month (with the highest rainfall) is June (196mm).
The driest month (with the least rainfall) is January (39mm).

Average rainfall days in September
Jomo, Ghana

  • Average rainfall days in September: 23.4 days

The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is January (17.7 days).

Average daylight in September /
Average sunshine in September
Jomo, Ghana

  • Average daylight in September: 12h and 6min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in September: 6h and 6min

The months with the most sunshine are April and May (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 24min).

Average sunshine days in September
Jomo, Ghana

  • Average sunshine days in September: 4.4 days

The month with the most sunshine days is January (10.3 days).
The month with the least sunshine days is November (2.5 days).

Average UV index in September
Jomo, Ghana

  • 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 months with the lowest UV index are June, July, August and September (UV index 6).

Average cloud cover in September
Jomo, Ghana

  • Average cloud cover in September: 61

The month with the most cloud cover is August (Cloud cover 62).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in September
Jomo, Ghana

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (10km).
The month with the lowest visibility is September (9km).