September weather forecastCaldera, Panama

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Caldera, Panama, with an average temperature varying between 20.3°C (68.5°F) and 26.8°C (80.2°F).

Temperature

As Caldera welcomes September, the average high-temperature is noted at a still moderately hot 26.8°C (80.2°F), closely aligning with the preceding month. Throughout the nights in September, Caldera experiences an average low-temperature of 20.3°C (68.5°F).

Humidity

In Caldera, Panama, the average relative humidity in September is 83%.

Rainfall

In Caldera, in September, during 22.3 rainfall days, 109mm (4.29") of precipitation is typically accumulated. Throughout the year, there are 223.7 rainfall days, and 1306mm (51.42") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of September in Caldera, sunrise is at 06:20 and sunset at 18:37. On the last day of the month, sunrise is at 06:17 and sunset at 18:20 EST.

Sunshine

The average sunshine in September in Caldera is 8.6h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index in Caldera. The months with the lowest UV index in Caldera, Panama, are January through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Caldera, is 26.8°C (80.2°F) and the average low-temperature is 20.3°C (68.5°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 30°C (86°F).

The average relative humidity in September in Caldera is 83%.

In Caldera, in September, during 22.3 rainfall days, 109mm (4.29") of precipitation is typically accumulated.

In September, the average day length in Caldera is 12h and 10min.

On the first day of September in Caldera, sunrise is at 06:20 and sunset at 18:37. On the last day of the month, sunrise is at 06:17 and sunset at 18:20 EST.

The average sunshine duration in September in Caldera, Panama, is 8.6h.

January through December, with an average maximum UV index of 6, are months with the highest UV index.

January through December, with an average maximum UV index of 6, are months with the lowest UV index in Caldera.

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

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

27°C

26.8°C

25.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.4km/h

3.8km/h

4.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

11.2

6.6

4.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Caldera, Panama

Average high temperature in September: 26.8°C

The warmest month (with the highest average high temperature) is April (28.8°C).
The month with the lowest average high temperature is October (25.7°C).

Average low temperature in September: 20.3°C

The months with the highest average low temperature are May and September (20.3°C).
The coldest month (with the lowest average low temperature) is January (17.8°C).

Average pressure in September
Caldera, Panama

Average pressure in September: 1011mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The months with the lowest atmospheric pressure are October and November (1010.7mbar).

Average wind speed in September
Caldera, Panama

Average wind speed in September: 3.6km/h

The windiest month (with the highest average wind speed) is February (10.1km/h).
The calmest month (with the lowest average wind speed) is September (3.6km/h).

Average humidity in September
Caldera, Panama

Average humidity in September: 83%

The month with the highest relative humidity is October (85%).
The month with the lowest relative humidity is March (72%).

Average rainfall in September
Caldera, Panama

Average rainfall in September: 109mm

The wettest month (with the highest rainfall) is May (253mm).
The driest months (with the least rainfall) are January and March (20mm).

Average rainfall days in September
Caldera, Panama

Average rainfall days in September: 22.3 days

The month with the highest number of rainy days is October (26 days).
The month with the least rainy days is January (11.3 days).

Average daylight in September /
Average sunshine in September
Caldera, Panama

Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).

Average sunshine in September: 8h and 36min

The months with the most sunshine are January and February (Average sunshine: 9h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 30min).

Average sunshine days in September
Caldera, Panama

Average sunshine days in September: 6.6 days

The month with the most sunshine days is January (15.8 days).
The month with the least sunshine days is October (4.5 days).

Average UV index in September
Caldera, Panama

Average UV index in September: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).