Cities / Guatemala / San Marcos

21°

🌦️ La Unión weather

Light rain. Light rain starting around 7:30pm.

Feels like 23° Wind 8 km/h NE Humidity 94% UV 0 Air Poor ☀ 05:55 - 18:24

Right now it is 21° in La Unión with light rain, today's high is 28° with an overnight low of 19° and about 14.1 mm of rain is expected. The sun rises at 05:55 and sets at 18:24, giving 12h 29m of daylight. Over the coming week highs range from 28° to 29° - a steady stretch with little day-to-day change.

La Unión is in San Marcos, Guatemala, sitting 616 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

18° 24° 30° 29° 18° 19:00 · 21.2° · 0.1 mm 20:00 · 20.2° · 0.9 mm 21:00 · 19.8° · 2.7 mm 22:00 · 19° · 2.1 mm 23:00 · 18.9° · 1.3 mm 00:00 · 18.7° · 0.2 mm 01:00 · 18.4° · 0.7 mm 02:00 · 18.3° · 0 mm 03:00 · 18° · 0.2 mm 04:00 · 18.1° · 0 mm 05:00 · 18.4° · 0 mm 06:00 · 18.5° · 0 mm 07:00 · 20.5° · 0 mm 08:00 · 22.5° · 0 mm 09:00 · 26.1° · 0 mm 10:00 · 27.1° · 0 mm 11:00 · 28.2° · 0 mm 12:00 · 29° · 0 mm 13:00 · 29.1° · 0.2 mm 14:00 · 28° · 0.4 mm 15:00 · 23.6° · 1 mm 16:00 · 22.7° · 2.1 mm 17:00 · 22.9° · 0.7 mm 18:00 · 21.5° · 1 mm

Precipitation

19:00 · 0.1 mm 19:00 20:00 · 0.9 mm 21:00 · 2.7 mm 22:00 · 2.1 mm 22:00 23:00 · 1.3 mm 00:00 · 0.2 mm 01:00 · 0.7 mm 01:00 02:00 · 0 mm 03:00 · 0.2 mm 04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm 13:00 · 0.2 mm 13:00 14:00 · 0.4 mm 15:00 · 1 mm 16:00 · 2.1 mm 16:00 17:00 · 0.7 mm 18:00 · 1 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
19:00 🌦️ 21.2° 23.7° 0.1 mm Light rain
20:00 🌦️ 20.2° 21.7° 0.9 mm Light rain
21:00 🌧️ 19.8° 21.1° 2.7 mm Rain
22:00 🌧️ 19° 19.6° 2.1 mm Rain
23:00 🌧️ 18.9° 19.3° 1.3 mm Rain
00:00 🌦️ 18.7° 19.1° 0.2 mm Light rain
01:00 🌦️ 18.4° 18.6° 0.7 mm Light rain
02:00 ☁️ 18.3° 18.3° - Overcast
03:00 🌦️ 18° 17.6° 0.2 mm Light rain
04:00 ☁️ 18.1° 17.6° - Overcast
05:00 ☁️ 18.4° 17.8° - Overcast
06:00 🌤️ 18.5° 17.6° - Mostly clear

Next 16 days

Today🌧️ 28°19°14.1mm Wed 26🌧️ 29°18°8.8mm Thu 27🌧️ 29°18°9.4mm Fri 28🌧️ 28°18°4.8mm Sat 29🌧️ 29°18°2.7mm Sun 30🌧️ 28°18°15.4mm Mon 31🌧️ 28°19°17.1mm Tue 1🌧️ 28°19°8.1mm Wed 2🌦️ 28°18°5.1mm Thu 3🌧️ 28°18°18.3mm Fri 4🌧️ 25°18°29.5mm Sat 5🌧️ 25°18°13.1mm Sun 6🌧️ 26°18°19.7mm Mon 7🌧️ 25°18°10.6mm Tue 8🌦️ 23°17°4.2mm Wed 9🌦️ 26°18°3.9mm
🌧️ TodayAugust 25th Avg 23° Low 19° at 23:00 High 28° at 13:00 14.1 mm rain Wind ~14 km/h
Cloudy Cloudy Rain
00:00 19°
02:00 20°
04:00 20°
06:00 20°
08:00 25°
10:00 27°
12:00 28°
14:00 28°
16:00 24° 1.9mm
18:00 22° 0.7mm
20:00 20° 0.9mm
22:00 19° 2.1mm
🌧️ WednesdayAugust 26th Avg 22° Low 18° at 03:00 High 29° at 13:00 8.8 mm rain Wind ~12 km/h
Rain Rain
00:00 19° 0.2mm
02:00 18°
04:00 18°
06:00 19°
08:00 23°
10:00 27°
12:00 29°
14:00 28° 0.4mm
16:00 23° 2.1mm
18:00 22° 1mm
20:00 20°
22:00 19° 1.9mm
🌧️ ThursdayAugust 27th Avg 22° Low 18° at 03:00 High 29° at 13:00 9.4 mm rain Wind ~13 km/h
Cloudy Rain Rain
00:00 19° 0.3mm
02:00 18° 0.1mm
04:00 19°
06:00 19°
08:00 25°
10:00 27°
12:00 28°
14:00 26° 1.3mm
16:00 25° 0.5mm
18:00 22° 0.1mm
20:00 21°
22:00 19° 2mm
🌧️ FridayAugust 28th Avg 22° Low 18° at 03:00 High 28° at 13:00 4.8 mm rain Wind ~14 km/h
Cloudy Rain
00:00 18° 0.6mm
02:00 18°
04:00 18°
06:00 19°
08:00 25°
10:00 27°
12:00 28°
14:00 28° 0.6mm
16:00 25° 0.9mm
18:00 22° 0.1mm
20:00 20° 0.1mm
22:00 19° 0.1mm
🌧️ SaturdayAugust 29th Avg 22° Low 18° at 23:00 High 29° at 13:00 2.7 mm rain Wind ~14 km/h
Clear Clear Rain Rain
00:00 19°
02:00 19°
04:00 18°
06:00 18°
08:00 25°
10:00 27°
12:00 28°
14:00 29° 0.2mm
16:00 25° 1.1mm
18:00 23°
20:00 20°
22:00 19° 0.1mm
🌧️ SundayAugust 30th Avg 21° Low 18° at 00:00 High 28° at 12:00 15.4 mm rain Wind ~13 km/h
Cloudy Rain
00:00 18° 1.5mm
02:00 18°
04:00 18°
06:00 19°
08:00 24°
10:00 26°
12:00 28°
14:00 24° 2.1mm
16:00 22° 2.2mm
18:00 20° 2.2mm
20:00 20° 0.3mm
22:00 19°
🌧️ MondayAugust 31st Avg 23° Low 19° at 05:00 High 28° at 14:00 17.1 mm rain Feels 30° Wind ~10 km/h
Cloudy Rain
00:00 19°
02:00 19°
04:00 19°
06:00 20°
08:00 24°
10:00 27° 0.2mm
12:00 27° 0.2mm
14:00 28° 0.6mm
16:00 26° 3.5mm
18:00 21° 3.5mm
20:00 21° 1.4mm
22:00 20°
🌧️ TuesdaySeptember 1st Avg 22° Low 19° at 23:00 High 28° at 12:00 8.1 mm rain Wind ~11 km/h
Cloudy Clear Rain
00:00 20°
02:00 21°
04:00 21°
06:00 20°
08:00 23°
10:00 26°
12:00 28°
14:00 25° 1.1mm
16:00 22° 0.7mm
18:00 21° 0.7mm
20:00 20° 0.7mm
22:00 20° 0.3mm
🌦️ WednesdaySeptember 2nd Avg 21° Low 18° at 05:00 High 28° at 12:00 5.1 mm rain Wind ~14 km/h
Cloudy Rain Cloudy
00:00 19° 0.3mm
02:00 19°
04:00 18°
06:00 19°
08:00 23°
10:00 26°
12:00 28°
14:00 25° 0.9mm
16:00 22° 0.7mm
18:00 21° 0.7mm
20:00 20°
22:00 19°
🌧️ ThursdaySeptember 3rd Avg 21° Low 18° at 04:00 High 28° at 12:00 18.3 mm rain Wind ~12 km/h
Clear Partly Cloudy Rain
00:00 19°
02:00 18°
04:00 18°
06:00 19°
08:00 23°
10:00 26°
12:00 28°
14:00 25° 1.8mm
16:00 22° 1.7mm
18:00 21° 1.7mm
20:00 20° 2.6mm
22:00 19°
🌧️ FridaySeptember 4th Avg 21° Low 18° at 04:00 High 25° at 12:00 29.5 mm rain Feels 28° Wind ~11 km/h
Rain
00:00 19°
02:00 18° 3.3mm
04:00 18° 0.6mm
06:00 19° 0.6mm
08:00 21° 0.5mm
10:00 23° 0.3mm
12:00 25° 0.3mm
14:00 24° 2.4mm
16:00 23° 1.3mm
18:00 21° 1.3mm
20:00 20° 1.3mm
22:00 20° 0.2mm
🌧️ SaturdaySeptember 5th Avg 21° Low 18° at 05:00 High 25° at 12:00 13.1 mm rain Feels 27° Wind ~9 km/h
Rain Cloudy Rain
00:00 19° 0.2mm
02:00 19° 0.1mm
04:00 18°
06:00 19°
08:00 21°
10:00 24° 0.5mm
12:00 25° 0.5mm
14:00 23° 1.4mm
16:00 22° 0.3mm
18:00 21° 0.3mm
20:00 19° 0.8mm
22:00 18° 1.8mm
🌧️ SundaySeptember 6th Avg 21° Low 18° at 04:00 High 26° at 13:00 19.7 mm rain Feels 28° Wind ~10 km/h
Rain Cloudy Rain
00:00 18° 1.8mm
02:00 18° 0.4mm
04:00 18° 0.2mm
06:00 19° 0.2mm
08:00 22°
10:00 25° 0.7mm
12:00 26° 0.7mm
14:00 26° 1.4mm
16:00 24° 1.1mm
18:00 21° 1.1mm
20:00 20° 1.7mm
22:00 19° 0.7mm
🌧️ MondaySeptember 7th Avg 20° Low 18° at 05:00 High 25° at 11:00 10.6 mm rain Wind ~14 km/h
Cloudy Rain
00:00 19° 0.7mm
02:00 19°
04:00 18°
06:00 18°
08:00 22°
10:00 24° 0.1mm
12:00 25° 0.1mm
14:00 22° 0.5mm
16:00 21° 1.3mm
18:00 20° 1.3mm
20:00 19° 1.4mm
22:00 19°
🌦️ TuesdaySeptember 8th Avg 20° Low 17° at 05:00 High 23° at 10:00 4.2 mm rain Wind ~12 km/h
Cloudy Rain
00:00 18°
02:00 18°
04:00 17°
06:00 18°
08:00 22°
10:00 23°
12:00 22°
14:00 21° 0.8mm
16:00 20° 0.5mm
18:00 20° 0.5mm
20:00 20° 0.1mm
22:00 19°
🌦️ WednesdaySeptember 9th Avg 21° Low 18° at 05:00 High 26° at 12:00 3.9 mm rain Feels 28° Wind ~10 km/h
Cloudy Rain
00:00 19°
02:00 19°
04:00 19°
06:00 19°
08:00 22°
10:00 25°
12:00 26°
14:00 23° 0.8mm
16:00 21° 0.3mm
18:00 21° 0.3mm
20:00 20° 0.2mm
22:00 20°

Sun

☀️ Sunrise 05:55 · Sunset 18:24

12h 29m of daylight · America/Guatemala

Air quality

PM2.5 54.8 µg/m³ - Poor

Consider shortening hard exercise outdoors, and keep the windows shut if it is worse outside than in.

Source: Copernicus CAMS, updated hourly.

Nearby

Cerro Redondo · 1.1 km Santa Rita · 1.6 km Ixpetén · 1.7 km La Industria · 2.1 km Santa Ana Belén · 2.1 km La Lima · 2.2 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 14.1 mm of rain is expected in La Unión today.

What is the temperature in La Unión right now?

It is 21° in La Unión right now, though it feels closer to 23°. Today runs between a low of 19° and a high of 28°.

What time is sunrise and sunset in La Unión?

The sun rises at 05:55 and sets at 18:24 local time in La Unión today, giving 12h 29m of daylight.

What is the air quality in La Unión?

PM2.5 in La Unión is currently 54.8 µg/m³, which counts as Poor on the European air-quality index. Consider shortening hard exercise outdoors, and keep the windows shut if it is worse outside than in.

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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