Rio Dulce
Guatemala
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Rio Dulce, Guatemala

The first month of the autumn, September, is also a hot month in Rio Dulce, Guatemala, with average temperature fluctuating between 32°C (89.6°F) and 23°C (73.4°F).

Temperature

In September, the average high-temperature remains equal as in August - a still tropical 32°C (89.6°F). In September, the average low-temperature is 23°C (73.4°F).

Rainfall

In Rio Dulce, Guatemala, during September, the rain falls for 20 days and regularly aggregates up to 374mm (14.7") of precipitation. Throughout the year, in Rio Dulce, there are 171 rainfall days, and 2684mm (105.7") of precipitation is accumulated.

Daylight

The average length of the day in Rio Dulce, Guatemala, is 12.2h.

Sunshine

The average sunshine in Rio Dulce is 6h.

UV index

Months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to the UV radiation for the average person.
The daily maximum UV index of 12 in September interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.

What is the temperature in September in Rio Dulce?

In Rio Dulce, Guatemala, in September, the average high-temperature is 32°C (89.6°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in September in Rio Dulce?

In Rio Dulce, Guatemala, during September, the rain falls for 20 days and regularly aggregates up to 374mm (14.7") of precipitation.

What is the average length of the day in September in Rio Dulce?

The average length of the day in September is 12.2h.

How long on average sun shines in September in Rio Dulce?

In September, the average sunshine in Rio Dulce, Guatemala, is 6h.

What is the month with the highest UV index in Rio Dulce?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Rio Dulce.

What is the UV index intensity in September in Rio Dulce?

The average daily maximum UV index in September in Rio Dulce, Guatemala, is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Rio Dulce, Guatemala
  • Average high temperature in September: 32°C

Warmest months (with the highest average high temperature) are April, May and June (33°C).
The month with the lowest average high temperature is January (27°C).

  • Average low temperature in September: 23°C

Months with the highest average low temperature are May, June, July, August and September (23°C).
Coldest months (with the lowest average low temperature) are January, February and December (20°C).

Average rainfall in September - Rio Dulce, Guatemala
  • Average rainfall in September: 374mm

The wettest month (with the highest rainfall) is July (439mm).
The driest month (with the lowest rainfall) is March (77mm).

Average rainfall days in September - Rio Dulce, Guatemala
  • Average rainfall days in September: 20 days

The month with the highest number of rainy days is July (23 days).
The month with the lowest number of rainy days is April (6 days).

Average daylight in September / Average sunshine in September - Rio Dulce, Guatemala
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.2h).

  • Average sunshine in September: 6h

Months with most sunshine are March, April, May and August (Average sunshine: 7h).
Months with least sunshine are November and December (Average sunshine: 5).

Average UV index in September - Rio Dulce, Guatemala
  • Average UV index in September: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).