September weather forecastBikenibeu, Kiribati
September
Weather in September
Transitioning into September, Bikenibeu experiences the continuance of the warm climate from August. But, this month stands out due to a noticeable dip in rainfall standing at 54mm (2.13") over 13.2 days. The humidity also plummets, but the stable sea temperature keeps things comfortable for the swimmers. Despite the transition period, Bikenibeu, Kiribati persists with its inviting ambiance.Temperature
September denotes a minimal variation in the average high-temperature to a still moderately hot 28.5°C (83.3°F) from August's 28.7°C (83.7°F). Bikenibeu's September nights experience a subtle temperature dip to an average of 27.6°C (81.7°F).Heat index
September's average heat index is calculated to be a tropical 32°C (89.6°F). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
The months with the lowest humidity are August through November, with an average relative humidity of 74%.Rainfall
September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 54mm (2.13") of precipitation.Sea temperature
In September, the average sea temperature is 29.1°C (84.4°F).Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.
Daylight
In Bikenibeu, the average length of the day in September is 12h and 7min.On the first day of September, sunrise is at 06:23 and sunset at 18:31. On the last day of the month, sunrise is at 06:14 and sunset at 18:20 +12.
Sunshine
The month with the most sunshine is September, with an average of 8.6h of sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Bikenibeu are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 7 in September leads to these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bikenibeu, Kiribati
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is June (28.8°C).
The month with the lowest average high temperature is February (28.1°C).
- Average low temperature in September: 27.6°C
The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is March (27°C).
Average pressure in September
Bikenibeu, Kiribati
- Average pressure in September: 1009.4mbar
The month with the highest atmospheric pressure is September (1009.4mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in September
Bikenibeu, Kiribati
- Average wind speed in September: 17.8km/h
The windiest month (with the highest average wind speed) is February (22.3km/h).
The calmest month (with the lowest average wind speed) is October (15.5km/h).
Average humidity in September
Bikenibeu, Kiribati
- Average humidity in September: 74%
The months with the highest relative humidity are February, March and April (79%).
The months with the lowest relative humidity are August, September, October and November (74%).
Average rainfall in September
Bikenibeu, Kiribati
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is March (181mm).
The driest month (with the least rainfall) is September (54mm).
Average rainfall days in September
Bikenibeu, Kiribati
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is April (20.3 days).
The month with the least rainy days is November (11.1 days).
Average sea temperature in September
Bikenibeu, Kiribati
- Average sea temperature in September: 29.1°C
The best months for swimming (with the highest average sea temperature) are June and August (29.4°C).
The coldest month (with the lowest average sea temperature) is December (28.7°C).
Average daylight in September /
Average sunshine in September
Bikenibeu, Kiribati
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is September (Average sunshine: 8h and 36min).
The months with the least sunshine are February and March (Average sunshine: 7h and 24min).
Average sunshine days in September
Bikenibeu, Kiribati
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is April (8.2 days).
Average UV index in September
Bikenibeu, Kiribati
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Bikenibeu, Kiribati
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is September (Cloud cover 36).
Average visibility in September
Bikenibeu, Kiribati
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





