September weather forecastValentón, Guatemala

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Valentón, Guatemala, with an average temperature varying between 9.8°C (49.6°F) and 16.7°C (62.1°F).

Temperature

The lowest temperatures are recorded in September, with averages reaching a high of 16.7°C (62.1°F) and a low of 9.8°C (49.6°F).

Humidity

The most humid month is September, with an average relative humidity of 93%.

Rainfall

In September, the rain falls for 29.9 days. Throughout September, 471mm (18.54") of precipitation is accumulated. Throughout the year, there are 295.3 rainfall days, and 2656mm (104.57") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 05:54 and sunset at 18:18. On the last day of the month, sunrise is at 05:56 and sunset at 17:56 CST.

Sunshine

June and September, with an average of 5.4h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, June, August, September and November, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 in September translates into these instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Updated: Aug 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

September, characterized by an average high temperature of 16.7°C (62.1°F) and a low temperature of 9.8°C (49.6°F), is generally the coldest month.

During September, Valentón experiences an average high-temperature of 16.7°C (62.1°F) and a low-temperature of 9.8°C (49.6°F).

The most humid month is September, with an average relative humidity of 93%.

In Valentón, the average relative humidity in September is 93%.

In Valentón, in September, during 29.9 rainfall days, 471mm (18.54") of precipitation is typically accumulated.

The average day length in September is 12h and 13min.

In September, on the first day of the month, sunrise is at 05:54 and sunset at 18:18. On the last day of the month, sunrise is at 05:56 and sunset at 17:56 CST.

The months with the least sunshine are June and September, with an average of 5.4h of sunshine.

In Valentón, the average sunshine duration in September is 5.4h.

The months with the lowest UV index are January, June, August, September and November, with an average maximum UV index of 3.

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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

17.9°C

16.7°C

17.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.5km/h

5.1km/h

5.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.6

0.1

0.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Valentón, Guatemala

Average high temperature in September: 16.7°C

The warmest month (with the highest average high temperature) is April (21°C).
The month with the lowest average high temperature is September (16.7°C).

Average low temperature in September: 9.8°C

The month with the highest average low temperature is June (10.4°C).
The coldest month (with the lowest average low temperature) is January (6°C).

Average pressure in September
Valentón, Guatemala

Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is May (1013mbar).

Average wind speed in September
Valentón, Guatemala

Average wind speed in September: 4.6km/h

The windiest month (with the highest average wind speed) is July (6.5km/h).
The calmest month (with the lowest average wind speed) is May (4.4km/h).

Average humidity in September
Valentón, Guatemala

Average humidity in September: 93%

The month with the highest relative humidity is September (93%).
The months with the lowest relative humidity are March and April (77%).

Average rainfall in September
Valentón, Guatemala

Average rainfall in September: 471mm

The wettest month (with the highest rainfall) is June (521mm).
The driest month (with the least rainfall) is February (24mm).

Average rainfall days in September
Valentón, Guatemala

Average rainfall days in September: 29.9 days

The month with the highest number of rainy days is August (30 days).
The month with the least rainy days is February (16 days).

Average daylight in September /
Average sunshine in September
Valentón, Guatemala

Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).

Average sunshine in September: 5h and 24min

The month with the most sunshine is April (Average sunshine: 9h and 48min).
The months with the least sunshine are June and September (Average sunshine: 5h and 24min).

Average sunshine days in September
Valentón, Guatemala

Average sunshine days in September: 0.1 days

The month with the most sunshine days is December (9.5 days).
The month with the least sunshine days is September (0.1 days).

Average UV index in September
Valentón, Guatemala

Average UV index in September: 3

The months with the highest UV index are February, March, April, May, July, October and December (UV index 4).
The months with the lowest UV index are January, June, August, September and November (UV index 3).