Cities / Guatemala / San Marcos

22°

☁️ La Unión weather

Overcast. Light rain starting around 11:15pm.

Feels like 26° Wind 7 km/h NE Humidity 93% UV 0 Air Moderate ☀ 05:55 - 18:20

Right now it is 22° in La Unión with overcast skies, it feels more like 26°, today's high is 33° with an overnight low of 21° and about 8.9 mm of rain is expected. The sun rises at 05:55 and sets at 18:20, giving 12h 25m of daylight. Over the coming week highs range from 30° to 32° - a steady stretch with little day-to-day change.

La Unión is in San Marcos, Guatemala, sitting 709 m above sea level. Local time is America/Guatemala (UTC−6), and every time on this page is shown in it.

Next 24 hours - temperature

20° 26° 32° 31° 21° 23:00 · 22.3° · 0 mm 00:00 · 22° · 0.3 mm 01:00 · 21.8° · 0 mm 02:00 · 21.8° · 0.2 mm 03:00 · 21.7° · 0.3 mm 04:00 · 20.9° · 1.9 mm 05:00 · 21° · 0.3 mm 06:00 · 21.1° · 0 mm 07:00 · 22.1° · 0 mm 08:00 · 25.5° · 0 mm 09:00 · 27.1° · 0 mm 10:00 · 29.2° · 0 mm 11:00 · 30.5° · 0 mm 12:00 · 31.1° · 0.1 mm 13:00 · 30.7° · 0.1 mm 14:00 · 26.7° · 2.4 mm 15:00 · 26.9° · 2.4 mm 16:00 · 26.7° · 1.2 mm 17:00 · 26.6° · 0.2 mm 18:00 · 25.2° · 0 mm 19:00 · 23.9° · 0 mm 20:00 · 23.4° · 0 mm 21:00 · 23.1° · 0 mm 22:00 · 23° · 0 mm

Precipitation

23:00 · 0 mm 23:00 00:00 · 0.3 mm 01:00 · 0 mm 02:00 · 0.2 mm 02:00 03:00 · 0.3 mm 04:00 · 1.9 mm 05:00 · 0.3 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0 mm 08:00 09:00 · 0 mm 10:00 · 0 mm 11:00 · 0 mm 11:00 12:00 · 0.1 mm 13:00 · 0.1 mm 14:00 · 2.4 mm 14:00 15:00 · 2.4 mm 16:00 · 1.2 mm 17:00 · 0.2 mm 17:00 18:00 · 0 mm 19:00 · 0 mm 20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
23:00 ☁️ 22.3° 25.3° - Overcast
00:00 🌦️ 22° 24.6° 0.3 mm Light rain
01:00 ☁️ 21.8° 24.2° - Overcast
02:00 🌦️ 21.8° 24.1° 0.2 mm Light rain
03:00 🌦️ 21.7° 24° 0.3 mm Light rain
04:00 🌧️ 20.9° 23° 1.9 mm Rain
05:00 🌦️ 21° 23.1° 0.3 mm Light rain
06:00 ☁️ 21.1° 23.1° - Overcast
07:00 ☁️ 22.1° 24.4° - Overcast
08:00 ☁️ 25.5° 29.5° - Overcast
09:00 ☁️ 27.1° 30.8° - Overcast
10:00 ☁️ 29.2° 32.4° - Overcast

Next 16 days

Today🌧️ 33°21°8.9mm Mon 31🌧️ 31°21°10.3mm Tue 1🌧️ 32°21°21.5mm Wed 2🌧️ 32°20°8.8mm Thu 3🌧️ 30°21°11.1mm Fri 4🌧️ 30°21°16.2mm Sat 5🌧️ 31°21°33.6mm Sun 6🌦️ 28°21°6.3mm Mon 7🌧️ 31°21°27.3mm Tue 8🌧️ 30°20°17.3mm Wed 9🌧️ 31°20°33mm Thu 10🌧️ 29°20°8.7mm Fri 11🌦️ 31°20°3mm Sat 12🌧️ 31°21°20.9mm Sun 13🌧️ 31°21°83.7mm Mon 14🌦️ 30°20°2mm
🌧️ TodayAugust 30th Avg 26° Low 21° at 03:00 High 33° at 13:00 8.9 mm rain Feels 35° Wind ~12 km/h
Cloudy Cloudy Rain Rain
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 27°
10:00 31°
12:00 33°
14:00 32°
16:00 26° 5.6mm
18:00 25°
20:00 24° 0.1mm
22:00 23° 0.8mm
🌧️ MondayAugust 31st Avg 25° Low 21° at 04:00 High 31° at 12:00 10.3 mm rain Feels 34° Wind ~11 km/h
Rain Cloudy Rain Cloudy
00:00 22° 0.3mm
02:00 22° 0.2mm
04:00 21° 1.9mm
06:00 21°
08:00 26°
10:00 29°
12:00 31° 0.1mm
14:00 27° 2.4mm
16:00 27° 1.2mm
18:00 25°
20:00 23°
22:00 23°
🌧️ TuesdaySeptember 1st Avg 24° Low 21° at 04:00 High 32° at 12:00 21.5 mm rain Feels 35° Wind ~9 km/h
Rain Cloudy Rain Cloudy
00:00 22° 0.1mm
02:00 22°
04:00 21° 5.1mm
06:00 21°
08:00 25°
10:00 30°
12:00 32° 0.1mm
14:00 28° 4mm
16:00 26° 1.4mm
18:00 24° 0.3mm
20:00 23°
22:00 23°
🌧️ WednesdaySeptember 2nd Avg 25° Low 20° at 03:00 High 32° at 12:00 8.8 mm rain Feels 34° Wind ~9 km/h
Cloudy Rain
00:00 22°
02:00 21° 0.4mm
04:00 21°
06:00 21°
08:00 26°
10:00 30°
12:00 32°
14:00 26° 3.1mm
16:00 28° 0.6mm
18:00 25° 0.1mm
20:00 23°
22:00 23° 0.4mm
🌧️ ThursdaySeptember 3rd Avg 24° Low 21° at 04:00 High 30° at 13:00 11.1 mm rain Feels 33° Wind ~8 km/h
Clear Rain Cloudy
00:00 22° 0.2mm
02:00 21°
04:00 21°
06:00 21° 0.2mm
08:00 25°
10:00 28°
12:00 29° 0.1mm
14:00 30° 0.2mm
16:00 26° 3.6mm
18:00 24° 0.7mm
20:00 23°
22:00 22° 0.2mm
🌧️ FridaySeptember 4th Avg 24° Low 21° at 00:00 High 30° at 15:00 16.2 mm rain Feels 33° Wind ~8 km/h
Rain Cloudy Cloudy Rain
00:00 21° 3.7mm
02:00 21° 3.5mm
04:00 21° 1.3mm
06:00 21° 0.9mm
08:00 23°
10:00 25°
12:00 27°
14:00 30°
16:00 29° 0.1mm
18:00 26° 0.1mm
20:00 24° 0.7mm
22:00 23° 0.1mm
🌧️ SaturdaySeptember 5th Avg 24° Low 21° at 05:00 High 31° at 12:00 33.6 mm rain Feels 33° Wind ~10 km/h
Cloudy Partly Cloudy Clear Rain
00:00 23° 0.1mm
02:00 22°
04:00 22°
06:00 22°
08:00 26°
10:00 29°
12:00 31°
14:00 28° 1.8mm
16:00 25° 8.6mm
18:00 23° 8.6mm
20:00 22° 0.7mm
22:00 22° 0.1mm
🌦️ SundaySeptember 6th Avg 24° Low 21° at 05:00 High 28° at 14:00 6.3 mm rain Feels 30° Wind ~7 km/h
Rain Cloudy Rain
00:00 22° 0.1mm
02:00 22° 0.8mm
04:00 21° 0.6mm
06:00 21° 0.6mm
08:00 23°
10:00 25°
12:00 27°
14:00 28°
16:00 26° 0.4mm
18:00 24° 0.4mm
20:00 23° 0.2mm
22:00 23° 0.1mm
🌧️ MondaySeptember 7th Avg 24° Low 21° at 05:00 High 31° at 12:00 27.3 mm rain Feels 33° Wind ~8 km/h
Rain Cloudy Rain
00:00 23° 0.1mm
02:00 22° 0.7mm
04:00 21° 0.2mm
06:00 21° 0.2mm
08:00 25°
10:00 29°
12:00 31°
14:00 26° 1.4mm
16:00 23° 3.4mm
18:00 23° 3.4mm
20:00 22° 3.1mm
22:00 22° 0.4mm
🌧️ TuesdaySeptember 8th Avg 24° Low 20° at 05:00 High 30° at 12:00 17.3 mm rain Feels 32° Wind ~8 km/h
Cloudy Rain Cloudy Rain
00:00 22° 0.4mm
02:00 22°
04:00 21° 0.5mm
06:00 21° 0.5mm
08:00 25°
10:00 29°
12:00 30°
14:00 28° 1mm
16:00 25° 1.9mm
18:00 24° 1.9mm
20:00 23° 0.3mm
22:00 23° 2.9mm
🌧️ WednesdaySeptember 9th Avg 24° Low 20° at 05:00 High 31° at 12:00 33 mm rain Feels 34° Wind ~8 km/h
Rain Clear Partly Cloudy Rain
00:00 22° 2.9mm
02:00 21° 2.8mm
04:00 21°
06:00 21°
08:00 25°
10:00 29°
12:00 31°
14:00 28° 1.1mm
16:00 26° 1.9mm
18:00 24° 1.9mm
20:00 23° 4.1mm
22:00 22° 0.2mm
🌧️ ThursdaySeptember 10th Avg 24° Low 20° at 05:00 High 29° at 12:00 8.7 mm rain Feels 32° Wind ~9 km/h
Cloudy Rain Cloudy Rain
00:00 21° 0.2mm
02:00 21°
04:00 20° 0.3mm
06:00 20° 0.3mm
08:00 24°
10:00 28°
12:00 29°
14:00 29° 0.6mm
16:00 26° 1.5mm
18:00 23° 1.5mm
20:00 22° 0.3mm
22:00 21° 0.2mm
🌦️ FridaySeptember 11th Avg 25° Low 20° at 05:00 High 31° at 13:00 3 mm rain Feels 33° Wind ~11 km/h
Cloudy Partly Cloudy Clear Rain Cloudy
00:00 21° 0.2mm
02:00 21°
04:00 21°
06:00 21°
08:00 26°
10:00 30°
12:00 30°
14:00 30° 0.2mm
16:00 28° 0.6mm
18:00 24° 0.6mm
20:00 23°
22:00 22° 0.2mm
🌧️ SaturdaySeptember 12th Avg 25° Low 21° at 05:00 High 31° at 12:00 20.9 mm rain Feels 34° Wind ~8 km/h
Partly Cloudy Rain
00:00 21° 0.2mm
02:00 21°
04:00 21°
06:00 21°
08:00 25°
10:00 29°
12:00 31°
14:00 29° 2mm
16:00 27° 1mm
18:00 25° 1mm
20:00 23° 2.5mm
22:00 22° 2.1mm
🌧️ SundaySeptember 13th Avg 25° Low 21° at 05:00 High 31° at 13:00 83.7 mm rain Feels 33° Wind ~9 km/h
Rain Cloudy Rain
00:00 22° 2.1mm
02:00 22° 1.4mm
04:00 22°
06:00 22°
08:00 25°
10:00 28°
12:00 30°
14:00 30° 0.4mm
16:00 27° 7.1mm
18:00 23° 7.1mm
20:00 22° 18.3mm
22:00 22°
🌦️ MondaySeptember 14th Avg 25° Low 20° at 05:00 High 30° at 13:00 2 mm rain Feels 32° Wind ~11 km/h
Cloudy Partly Cloudy Clear Rain
00:00 22°
02:00 21°
04:00 21°
06:00 21°
08:00 25°
10:00 29°
12:00 30°
14:00 30°
16:00 28° 0.5mm
18:00 24° 0.5mm
20:00 23° 0.1mm
22:00 22° 0.1mm

Sun

☀️ Sunrise 05:55 · Sunset 18:20

12h 25m of daylight · America/Guatemala

Air quality

PM2.5 47.5 µg/m³ - Moderate

Fine for most people. If you have asthma or a heart condition, take it easier outdoors.

Source: Copernicus CAMS, updated hourly.

Nearby

El Milagro · 1.1 km Chupá · 2 km San José Chibuj · 2.2 km San Juan · 2.3 km Valle Dorado · 2.3 km Piedra Cuache · 2.8 km

Tools for La Unión

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about La Unión weather

Will it rain in La Unión today?

Yes - about 8.9 mm of rain is expected in La Unión today.

What is the temperature in La Unión right now?

It is 22° in La Unión right now, though it feels closer to 26°. Today runs between a low of 21° and a high of 33°.

What time is sunrise and sunset in La Unión?

The sun rises at 05:55 and sets at 18:20 local time in La Unión today, giving 12h 25m of daylight.

What is the air quality in La Unión?

PM2.5 in La Unión is currently 47.5 µg/m³, which counts as Moderate on the European air-quality index. Fine for most people. If you have asthma or a heart condition, take it easier outdoors.

How accurate is the La Unión forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers La Unión best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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