September weather forecast
Caldwell, Liberia

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Weather in September

Entering September, the city of Caldwell faces a minor reduction in rainfall without a significant shift in overall weather patterns. Although showers continue, the decrease in humidity levels brings noticeable replenishing atmospheric changes. September experiences yet another significant quantity of rainfall, standing at 265mm (10.43") over a duration of 29 days. While humidity hovers at a tolerable range, steady pressures and a good amount of daylight make for consistent weather characteristics. Oscillating wind speeds ensure a general feeling of calmness throughout the city during this month.

Temperature

September's onset in Caldwell brings an average high-temperature of a still moderately hot 26.8°C (80.2°F), showing a minute difference from August's 26.2°C (79.2°F). Caldwell nights in September witness a mild cool down to an average temperature of 24.3°C (75.7°F).

Humidity

The most humid month is September, with an average relative humidity of 86%.

Rainfall

In September, in Caldwell, the rain falls for 29 days. Throughout September, 265mm (10.43") of precipitation is accumulated. Throughout the year, in Caldwell, there are 298.8 rainfall days, and 1903mm (74.92") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 9min.
On the first day of September, sunrise is at 06:35 and sunset at 18:49. On the last day of the month, sunrise is at 06:30 and sunset at 18:34 GMT.

Sunshine

In Caldwell, Liberia, the average sunshine in September is 5.7h.

UV index

The months with the lowest UV index in Caldwell are June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Shield from overexposure. Defense against sun-related harm is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

What is the temperature in September in Caldwell?

In Caldwell, in September, the average high-temperature is 26.8°C (80.2°F), and the average low-temperature is 24.3°C (75.7°F). In June, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 32°C (89.6°F).

What is the most humid month in Caldwell?

September is the most humid month, with an average relative humidity of 86%.

What is the average humidity in September in Caldwell?

In September, the average relative humidity in Caldwell, Liberia, is 86%.

How much does it rain in Caldwell in September?

In Caldwell, Liberia, in September, it is raining for 29 days, with typically 265mm (10.43") of accumulated precipitation.

How many hours of daylight does Caldwell have in September?

In September, the average day length in Caldwell, Liberia, is 12h and 9min.

When are sunrise and sunset in September in Caldwell?

On the first day of September in Caldwell, Liberia, sunrise is at 06:35 and sunset at 18:49. On the last day of the month, sunrise is at 06:30 and sunset at 18:34 GMT.

How long on average sun shines in September in Caldwell?

The average sunshine duration in September in Caldwell, Liberia, is 5.7h.

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

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

How high is the UV index in September in Caldwell?

In Caldwell, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Average temperature in September
Caldwell, Liberia

Average temperature in September - Caldwell, Liberia
  • Average high temperature in September: 26.8°C

The warmest month (with the highest average high temperature) is January (29.9°C).
The month with the lowest average high temperature is August (26.2°C).

  • Average low temperature in September: 24.3°C

The month with the highest average low temperature is April (26.2°C).
The coldest months (with the lowest average low temperature) are July and August (24.1°C).

Average pressure in September
Caldwell, Liberia

Average pressure in September - Caldwell, Liberia
  • Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is July (1014.2mbar).
The month with the lowest atmospheric pressure is February (1010.6mbar).

Average wind speed in September
Caldwell, Liberia

Average wind speed in September - Caldwell, Liberia
  • Average wind speed in September: 11.3km/h

The windiest month (with the highest average wind speed) is August (14.8km/h).
The calmest month (with the lowest average wind speed) is November (7.9km/h).

Average humidity in September
Caldwell, Liberia

Average humidity in September - Caldwell, Liberia
  • Average humidity in September: 86%

The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is January (76%).

Average rainfall in September
Caldwell, Liberia

Average rainfall in September - Caldwell, Liberia
  • Average rainfall in September: 265mm

The wettest month (with the highest rainfall) is June (308mm).
The driest month (with the least rainfall) is January (31mm).

Average rainfall days in September
Caldwell, Liberia

Average rainfall days in September - Caldwell, Liberia
  • Average rainfall days in September: 29 days

The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is January (14.8 days).

Average daylight in September /
Average sunshine in September
Caldwell, Liberia

Average daylight in September / Average sunshine in September - Caldwell, Liberia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in September: 5h and 4min

The month with the most sunshine is January (Average sunshine: 9h and 18min).
The month with the least sunshine is August (Average sunshine: 3h and 54min).

Average sunshine days in September
Caldwell, Liberia

Average sunshine days in September - Caldwell, Liberia
  • Average sunshine days in September: 0.3 days

The month with the most sunshine days is January (14.3 days).
The month with the least sunshine days is September (0.3 days).

Average UV index in September
Caldwell, Liberia

Average UV index in September - Caldwell, Liberia
  • 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
Caldwell, Liberia

Average cloud cover in September - Caldwell, Liberia
  • Average cloud cover in September: 62

The month with the most cloud cover is August (Cloud cover 76).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in September
Caldwell, Liberia

Average visibility in September - Caldwell, Liberia
  • Average visibility in September: 9km

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

Caldwell, Liberia

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