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
Opobo experiences a recorded average high-temperature of a still moderately hot 27.3°C (81.1°F) in September, closely aligned with August's 26.9°C (80.4°F). September nights in Opobo, Nigeria, witness a mild cool down to an average low of 23.8°C (74.8°F).Heat index
In September, the heat index is estimated at a tropical 31°C (87.8°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Observations indicate that the heat index values are for shady locations with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September is 85%.Rainfall
In Opobo, during September, the rain falls for 28.4 days and regularly aggregates up to 263mm (10.35") of precipitation. In Opobo, during the entire year, the rain falls for 300.7 days and collects up to 1894mm (74.57") of precipitation.Daylight
The average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 06:23 and sunset at 18:35. On the last day of the month, sunrise is at 06:17 and sunset at 18:22 WAT.
Sunshine
In September, the average sunshine is 5.6h.UV index
The months with the lowest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Opobo, Nigeria
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is January (31.8°C).
The month with the lowest average high temperature is July (26.8°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is March (26°C).
The coldest months (with the lowest average low temperature) are July and August (23.5°C).
Average pressure in September
Opobo, Nigeria
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is July (1013.6mbar).
The month with the lowest atmospheric pressure is February (1009.7mbar).
Average wind speed in September
Opobo, Nigeria
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is August (12.1km/h).
The calmest month (with the lowest average wind speed) is October (8.8km/h).
Average humidity in September
Opobo, Nigeria
- Average humidity in September: 85%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and December (73%).
Average rainfall in September
Opobo, Nigeria
- Average rainfall in September: 263mm
The wettest month (with the highest rainfall) is July (374mm).
The driest month (with the least rainfall) is December (34mm).
Average rainfall days in September
Opobo, Nigeria
- Average rainfall days in September: 28.4 days
The month with the highest number of rainy days is July (29.9 days).
The month with the least rainy days is January (16.7 days).
Average daylight in September /
Average sunshine in September
Opobo, Nigeria
- Average daylight in September: 12h and 1min
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 54min).
- Average sunshine in September: 5h and 4min
The month with the most sunshine is December (Average sunshine: 9h and 30min).
The months with the least sunshine are July and August (Average sunshine: 4h and 24min).
Average sunshine days in September
Opobo, Nigeria
- Average sunshine days in September: 1.5 days
The month with the most sunshine days is January (11.5 days).
The months with the least sunshine days are July and August (0.8 days).
Average UV index in September
Opobo, Nigeria
- 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
Opobo, Nigeria
- Average cloud cover in September: 63
The months with the most cloud cover are July and August (Cloud cover 71).
The months with the least cloud cover are January and December (Cloud cover 22).
Average visibility in September
Opobo, Nigeria
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
