Climate and monthly weather forecastLa Unión, Guatemala
Climate and monthly weather forecast
Weather in January
January, the same as December, in La Unión, Guatemala, is another pleasant winter month, with an average temperature varying between 14.1°C (57.4°F) and 21.8°C (71.2°F). La Unión's January weather reaches an average high of 21.8°C (71.2°F) and an average low of 14.1°C (57.4°F), making it the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a warm month in La Unión, Guatemala, with an average temperature ranging between min 14.8°C (58.6°F) and max 24°C (75.2°F). Upon the beginning of February, La Unión's high-temperatures register at a moderately hot 24°C (75.2°F), closely mirroring the preceding month. Weather in February »Weather in March
March, the first month of the spring in La Unión, is still a warm month, with temperature in the range of an average low of 15.3°C (59.5°F) and an average high of 25.8°C (78.4°F). La Unión commences March with an average high-temperature of a still moderately hot 25.8°C (78.4°F), maintaining a close resemblance to the previous month. Weather in March »Weather in April
April, the same as March, is another warm spring month in La Unión, Guatemala, with an average temperature fluctuating between 28.8°C (83.8°F) and 17.7°C (63.9°F). With average high temperatures of 28.8°C (83.8°F) and lows of 17.7°C (63.9°F), April is the warmest month. During April, the heat index is evaluated at a hot 33°C (91.4°F). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in La Unión, Guatemala, with an average temperature varying between 18.6°C (65.5°F) and 27.6°C (81.7°F). May's arrival brings an average high-temperature of a still warm 27.6°C (81.7°F), demonstrating subtle variation from the preceding month. Weather in May »Weather in June
June, the first month of the summer in La Unión, is also a moderately hot month, with an average temperature varying between 26.2°C (79.2°F) and 18.3°C (64.9°F). The arrival of June coincides with an average high-temperature of a still moderately hot 26.2°C (79.2°F), indicating a minimal shift from May's 27.6°C (81.7°F). Weather in June »Weather in July
July, like June, in La Unión, Guatemala, is another warm summer month, with an average temperature ranging between min 17.9°C (64.2°F) and max 25.5°C (77.9°F). An average high-temperature of a still warm 25.5°C (77.9°F) marks July, exhibiting a close resemblance to the conditions in June. Weather in July »Weather in August
August, the last month of the summer in La Unión, is another warm month, with temperature in the range of an average low of 17.7°C (63.9°F) and an average high of 26.2°C (79.2°F). La Unión marks the onset of August with an average high-temperature of a still moderately hot 26.2°C (79.2°F), subtly divergent from July's 25.5°C (77.9°F). Weather in August »Weather in September
September, the first month of the autumn in La Unión, is also a moderately hot month, with temperature in the range of an average low of 17.5°C (63.5°F) and an average high of 26°C (78.8°F). September begins with an average high-temperature of a still warm 26°C (78.8°F), reflecting close similarity to the preceding month. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in La Unión, Guatemala, with an average temperature fluctuating between 16.5°C (61.7°F) and 24.5°C (76.1°F). On the advent of October, La Unión's average high-temperature exhibits a minor adjustment to a still warm 24.5°C (76.1°F) from September's 26°C (78.8°F). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in La Unión, Guatemala, with an average temperature varying between 15.2°C (59.4°F) and 22.5°C (72.5°F). Transitioning into November, La Unión experiences an average high-temperature of a pleasant 22.5°C (72.5°F), marking a minor shift from the preceding month. Weather in November »Weather in December
December, the first month of the winter in La Unión, is still a pleasant month, with an average temperature varying between 14.4°C (57.9°F) and 22.1°C (71.8°F). The shift from November to December is characterized by an average high-temperature of a still pleasant 22.1°C (71.8°F), not significantly different from the 22.5°C (72.5°F) of November. Weather in December »Updated: Feb 15, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest time of the year is January, with temperatures averaging a high of 21.8°C (71.2°F) and a low of 14.1°C (57.4°F).
In La Unión, during the entire year, the rain falls for 297.7 days and collects up to 1500mm (59.06") of precipitation.
January, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
The month with the least rainfall in La Unión, Guatemala, is February, when the rain falls for 19.1 days and typically collects 32mm (1.26") of precipitation.
The months with the highest UV index in La Unión are March through June, with an average maximum UV index of 6.
La Unión, Guatemala, notes the warmest temperatures in April, with a average high of 28.8°C (83.8°F) and a low of 17.7°C (63.9°F).
The least humid month in La Unión is April, with an average relative humidity of 76%.
The month with the most sunshine in La Unión, Guatemala, is April, with an average of 10.3h of sunshine.
June has the longest days of the year in La Unión, Guatemala, with an average of 13h and 0min of daylight.
September is the month with the most rainfall in La Unión. Rain falls for 29.2 days and accumulates 261mm (10.28") of precipitation.
October and November, with an average relative humidity of 91%, are most humid months in La Unión, Guatemala.
The month with the least sunshine in La Unión, Guatemala, is November, with an average of 5h of sunshine.
With an average of 11h and 18min of daylight, December has the shortest days of the year.
La Unión, Guatemala, does not utilize Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
La Unión, Guatemala
The warmest month (with the highest average high temperature) is April (28.8°C).
The month with the lowest average high temperature is January (21.8°C).
The month with the highest average low temperature is May (18.6°C).
The coldest month (with the lowest average low temperature) is January (14.1°C).
Average pressure
La Unión, Guatemala
- Average pressure in January:
1015.9mbar - Average pressure in February:
1014.8mbar - Average pressure in March:
1014.3mbar - Average pressure in April:
1012.6mbar - Average pressure in May:
1012.2mbar - Average pressure in June:
1012.4mbar
- Average pressure in July:
1013.8mbar - Average pressure in August:
1013mbar - Average pressure in September:
1012.2mbar - Average pressure in October:
1012.5mbar - Average pressure in November:
1014.4mbar - Average pressure in December:
1015.1mbar
The month with the highest atmospheric pressure is January (1015.9mbar).
The months with the lowest atmospheric pressure are May and September (1012.2mbar).
Average wind speed
La Unión, Guatemala
- Average wind speed in January:
7.8km/h - Average wind speed in February:
7.5km/h - Average wind speed in March:
7.3km/h - Average wind speed in April:
6.3km/h - Average wind speed in May:
5.2km/h - Average wind speed in June:
4.8km/h
- Average wind speed in July:
5.6km/h - Average wind speed in August:
4.9km/h - Average wind speed in September:
4.4km/h - Average wind speed in October:
5.6km/h - Average wind speed in November:
7km/h - Average wind speed in December:
7.2km/h
The windiest month (with the highest average wind speed) is January (7.8km/h).
The calmest month (with the lowest average wind speed) is September (4.4km/h).
Average humidity
La Unión, Guatemala
The months with the highest relative humidity are October and November (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall
La Unión, Guatemala
- Average rainfall in January:
43mm - Average rainfall in February:
32mm - Average rainfall in March:
39mm - Average rainfall in April:
75mm - Average rainfall in May:
213mm - Average rainfall in June:
216mm
The wettest month (with the highest rainfall) is September (261mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days
La Unión, Guatemala
- Average rainfall days in January:
21.2 days - Average rainfall days in February:
19.1 days - Average rainfall days in March:
19.5 days - Average rainfall days in April:
22 days - Average rainfall days in May:
28.7 days - Average rainfall days in June:
28.8 days
- Average rainfall days in July:
27.6 days - Average rainfall days in August:
28.7 days - Average rainfall days in September:
29.2 days - Average rainfall days in October:
27.7 days - Average rainfall days in November:
23.8 days - Average rainfall days in December:
21.4 days
The month with the highest number of rainy days is September (29.2 days).
The month with the least rainy days is February (19.1 days).
Average daylight / Average sunshine
La Unión, Guatemala
- Average daylight in January:
11h and 24min - Average daylight in February:
11h and 42min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 30min - Average daylight in May:
12h and 48min - Average daylight in June:
13h and 0min
- Average daylight in July:
12h and 54min - Average daylight in August:
12h and 36min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 48min - Average daylight in November:
11h and 24min - Average daylight in December:
11h and 18min
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 18min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
6h and 42min - Average sunshine in March:
8h and 48min - Average sunshine in April:
10h and 18min - Average sunshine in May:
9h and 18min - Average sunshine in June:
7h and 48min
- Average sunshine in July:
7h and 6min - Average sunshine in August:
7h and 54min - Average sunshine in September:
6h and 42min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 0min - Average sunshine in December:
5h and 36min
The month with the most sunshine is April (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 0min).
Average sunshine days
La Unión, Guatemala
- Average sunshine days in January:
5.8 days - Average sunshine days in February:
5.1 days - Average sunshine days in March:
8.3 days - Average sunshine days in April:
5.9 days - Average sunshine days in May:
1.4 days - Average sunshine days in June:
1 days
- Average sunshine days in July:
2.4 days - Average sunshine days in August:
1.7 days - Average sunshine days in September:
0.7 days - Average sunshine days in October:
1.8 days - Average sunshine days in November:
3.9 days - Average sunshine days in December:
6 days
The month with the most sunshine days is March (8.3 days).
The month with the least sunshine days is September (0.7 days).
Average UV index
La Unión, Guatemala
The months with the highest UV index are March, April, May and June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover
La Unión, Guatemala
The month with the most cloud cover is November (Cloud cover 75).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility
La Unión, Guatemala
The month with the highest visibility is April (8km).
The months with the lowest visibility are October, November and December (5km).
