September weather forecast
Bairiki, Kiribati

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The National Parliament buildings of Bairiki, Kiribati
The National Parliament buildings of Bairiki, Kiribati

Weather in September

September in Bairiki, Kiribati, registers a slight increase in rainfall, shifting from 66mm (2.6") in August to 70mm (2.76"). This increase in precipitation doesn't disrupt the distinctive tropical weather of Bairiki. The days are marked by warm temperatures, considerable sunlight, and light sea breezes. With pleasant weather conditions, September is ideal for sightseeing and outdoor activities. As the month transitions into October, there is a minor increase in rainfall.

Temperature

September in Bairiki, Kiribati, records an average high-temperature of a still warm 28.5°C (83.3°F), indicating a minor variation from the preceding month. Bairiki's nighttime temperature in September experiences a slight dip from daytime highs, falling to an average of 27.6°C (81.7°F).

Heat index

The heat index value during September is computed to be a hot 32°C (89.6°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

August through November, with an average relative humidity of 74%, are the least humid months.

Rainfall

September is the month with the least rainfall in Bairiki. Rain falls for 13.2 days and accumulates 54mm (2.13") of precipitation.

Sea temperature

In Bairiki, Kiribati, in September, the average water temperature is 29.1°C (84.4°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

In Bairiki, Kiribati, the average length of the day in September is 12h and 7min.
On the first day of September in Bairiki, sunrise is at 06:23 and sunset at 18:32. On the last day of the month, sunrise is at 06:14 and sunset at 18:21 +12.

Sunshine

With an average of 8.6h of sunshine, September has the most sunshine of the year in Bairiki.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Bairiki. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
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Frequently asked questions

How hot is September in Bairiki?

The high-temperature during September is 28.5°C (83.3°F) and the low-temperature is 27.6°C (81.7°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 32°C (89.6°F).

What is the least humid month in Bairiki?

The months with the lowest humidity in Bairiki, Kiribati, are August through November, with an average relative humidity of 74%.

What is the average humidity in September in Bairiki?

In September, the average relative humidity is 74%.

What is the driest month in Bairiki?

The month with the least rainfall in Bairiki is September, when the rain falls for 13.2 days and typically collects 54mm (2.13") of precipitation.

How many days does it rain in September in Bairiki?

In Bairiki, in September, it is raining for 13.2 days, with typically 54mm (2.13") of accumulated precipitation.

What is the sea water temperature in September in Bairiki?

In Bairiki, Kiribati, the average seawater temperature in September is 29.1°C (84.4°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Bairiki?

In September, the average day length in Bairiki is 12h and 7min.

What time are sunrise and sunset in September in Bairiki?

On the first day of September in Bairiki, Kiribati, sunrise is at 06:23 and sunset at 18:32. On the last day of the month, sunrise is at 06:14 and sunset at 18:21 +12.

What month has the most sunshine in Bairiki?

September has the most sunshine of the year in Bairiki, with an average of 8.6h of sunshine.

How many hours of sunshine does Bairiki have in September?

The average sunshine duration in September is 8.6h.

What is the month with the highest UV index in Bairiki?

The months with the highest UV index in Bairiki are January through December, with an average maximum UV index of 7.

What is the month with the lowest UV index in Bairiki?

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

How high is the UV index in September in Bairiki?

The average daily maximum UV index in September in Bairiki, Kiribati, is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in September
Bairiki, Kiribati

Average temperature in September - Bairiki, 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).

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Average pressure in September
Bairiki, Kiribati

Average pressure in September - Bairiki, 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).

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Average wind speed in September
Bairiki, Kiribati

Average wind speed in September - Bairiki, 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).

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Average humidity in September
Bairiki, Kiribati

Average humidity in September - Bairiki, 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%).

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Average rainfall in September
Bairiki, Kiribati

Average rainfall in September - Bairiki, 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).

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Average rainfall days in September
Bairiki, Kiribati

Average rainfall days in September - Bairiki, 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).

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Average sea temperature in September
Bairiki, Kiribati

Average sea temperature in September - Bairiki, 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).

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Average daylight in September /
Average sunshine in September
Bairiki, Kiribati

Average daylight in September / Average sunshine in September - Bairiki, Kiribati
  • Average daylight in September: 12h and 1min

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 4min

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).

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Average sunshine days in September
Bairiki, Kiribati

Average sunshine days in September - Bairiki, 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).

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Average UV index in September
Bairiki, Kiribati

Average UV index in September - Bairiki, 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).

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Average cloud cover in September
Bairiki, Kiribati

Average cloud cover in September - Bairiki, 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).

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Average visibility in September
Bairiki, Kiribati

Average visibility in September - Bairiki, 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).

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Bairiki, Kiribati

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