Cities / Costa Rica / Alajuela Province

23°

☁️ Unión weather

Overcast. No rain expected in the next few hours.

Feels like 28° Wind 2 km/h SE Humidity 98% UV 0 Air Good ☀ 05:28 - 17:43

Right now it is 23° in Unión with overcast skies, it feels more like 28°, today's high is 29° with an overnight low of 21° and about 3.2 mm of rain is expected. The sun rises at 05:28 and sets at 17:43, giving 12h 15m of daylight. Over the coming week highs range from 27° to 31°.

Unión is in Alajuela Province, Costa Rica, sitting 103 m above sea level. Local time is America/Costa_Rica (UTC−6), and every time on this page is shown in it.

Next 24 hours - temperature

22° 27° 31° 31° 22° 22:00 · 22.8° · 0 mm 23:00 · 22.7° · 0 mm 00:00 · 22.5° · 0 mm 01:00 · 22.3° · 0 mm 02:00 · 22.5° · 0 mm 03:00 · 22.5° · 0 mm 04:00 · 22.3° · 0 mm 05:00 · 22.2° · 0 mm 06:00 · 22.6° · 0 mm 07:00 · 23.8° · 0 mm 08:00 · 24.8° · 0.1 mm 09:00 · 25.4° · 0.1 mm 10:00 · 28.3° · 0 mm 11:00 · 30.2° · 0 mm 12:00 · 30.8° · 0.1 mm 13:00 · 29.2° · 0.6 mm 14:00 · 28.2° · 0.7 mm 15:00 · 27.3° · 0.5 mm 16:00 · 26.4° · 0.4 mm 17:00 · 25.3° · 0 mm 18:00 · 23.8° · 0 mm 19:00 · 23.4° · 0 mm 20:00 · 23.1° · 0 mm 21:00 · 22.8° · 0 mm

Precipitation

22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm 01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0 mm 04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0.1 mm 09:00 · 0.1 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0.1 mm 13:00 · 0.6 mm 13:00 14:00 · 0.7 mm 15:00 · 0.5 mm 16:00 · 0.4 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 0 mm 19:00 20:00 · 0 mm 21:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
22:00 ☁️ 22.8° 27.1° - Overcast
23:00 ☁️ 22.7° 27.2° - Overcast
00:00 ☁️ 22.5° 27.1° - Overcast
01:00 ☁️ 22.3° 26.8° - Overcast
02:00 ☁️ 22.5° 26.9° - Overcast
03:00 ☁️ 22.5° 26.8° - Overcast
04:00 ☁️ 22.3° 26.5° - Overcast
05:00 ☁️ 22.2° 26.3° - Overcast
06:00 ☁️ 22.6° 26.9° - Overcast
07:00 ☁️ 23.8° 28° - Overcast
08:00 🌦️ 24.8° 28.7° 0.1 mm Light rain
09:00 🌦️ 25.4° 29.3° 0.1 mm Light rain

Next 16 days

Today🌧️ 29°21°3.2mm Tue 8🌦️ 31°22°2.5mm Wed 9🌧️ 29°22°11.1mm Thu 10🌧️ 30°21°7.8mm Fri 11🌧️ 28°22°10.9mm Sat 12🌧️ 28°22°7.8mm Sun 13🌧️ 27°22°10.8mm Mon 14🌧️ 26°22°14.1mm Tue 15🌧️ 27°21°17.4mm Wed 16🌧️ 29°21°14.6mm Thu 17🌧️ 29°22°9.1mm Fri 18🌧️ 31°22°7.2mm Sat 19🌧️ 32°23°22.2mm Sun 20🌧️ 33°23°16.9mm Mon 21🌧️ 33°22°15.5mm Tue 22🌧️ 33°22°9.3mm
🌧️ TodaySeptember 7th Avg 24° Low 21° at 05:00 High 29° at 12:00 3.2 mm rain Feels 33° Wind ~5 km/h
Cloudy Rain Cloudy Cloudy
00:00 22°
02:00 22°
04:00 21°
06:00 22°
08:00 23° 0.1mm
10:00 25°
12:00 29°
14:00 27° 0.2mm
16:00 26°
18:00 24°
20:00 23°
22:00 23°
🌦️ TuesdaySeptember 8th Avg 25° Low 22° at 05:00 High 31° at 12:00 2.5 mm rain Feels 33° Wind ~13 km/h
Cloudy Rain Cloudy
00:00 23°
02:00 23°
04:00 22°
06:00 23°
08:00 25° 0.1mm
10:00 28°
12:00 31° 0.1mm
14:00 28° 0.7mm
16:00 26° 0.4mm
18:00 24°
20:00 23°
22:00 23°
🌧️ WednesdaySeptember 9th Avg 24° Low 22° at 05:00 High 29° at 10:00 11.1 mm rain Feels 31° Wind ~14 km/h
Partly Cloudy Cloudy Rain Cloudy
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 26° 0.1mm
10:00 29° 0.1mm
12:00 27° 1.6mm
14:00 26° 2.2mm
16:00 25° 0.6mm
18:00 23° 0.3mm
20:00 22°
22:00 22°
🌧️ ThursdaySeptember 10th Avg 24° Low 21° at 03:00 High 30° at 12:00 7.8 mm rain Feels 32° Wind ~13 km/h
Cloudy Rain Cloudy
00:00 21°
02:00 21°
04:00 21°
06:00 22°
08:00 25°
10:00 28° 0.4mm
12:00 30° 0.3mm
14:00 27° 1.7mm
16:00 25° 1.4mm
18:00 23° 0.3mm
20:00 23°
22:00 22°
🌧️ FridaySeptember 11th Avg 24° Low 22° at 05:00 High 28° at 10:00 10.9 mm rain Feels 31° Wind ~11 km/h
Cloudy Partly Cloudy Rain Cloudy
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 26°
10:00 28° 0.8mm
12:00 27° 1.6mm
14:00 27° 1.4mm
16:00 26° 1.4mm
18:00 23° 0.6mm
20:00 23°
22:00 23°
🌧️ SaturdaySeptember 12th Avg 24° Low 22° at 05:00 High 28° at 11:00 7.8 mm rain Feels 32° Wind ~8 km/h
Cloudy Rain Cloudy
00:00 23°
02:00 22°
04:00 22°
06:00 22°
08:00 25°
10:00 26° 0.2mm
12:00 28° 1.2mm
14:00 27° 1.4mm
16:00 25° 0.4mm
18:00 23° 0.4mm
20:00 23°
22:00 22°
🌧️ SundaySeptember 13th Avg 24° Low 22° at 05:00 High 27° at 12:00 10.8 mm rain Feels 32° Wind ~7 km/h
Cloudy Rain Cloudy
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 23°
10:00 25° 0.8mm
12:00 27° 0.8mm
14:00 25° 2.7mm
16:00 24° 0.1mm
18:00 23° 0.1mm
20:00 23°
22:00 23°
🌧️ MondaySeptember 14th Avg 23° Low 22° at 23:00 High 26° at 09:00 14.1 mm rain Feels 31° Wind ~5 km/h
Cloudy Rain Cloudy
00:00 23°
02:00 23°
04:00 22° 0.1mm
06:00 23° 0.1mm
08:00 25° 0.8mm
10:00 26° 1.6mm
12:00 25° 1.6mm
14:00 24° 1.6mm
16:00 23° 0.6mm
18:00 23° 0.6mm
20:00 23°
22:00 22°
🌧️ TuesdaySeptember 15th Avg 24° Low 21° at 05:00 High 27° at 10:00 17.4 mm rain Feels 32° Wind ~6 km/h
Cloudy Partly Cloudy Rain
00:00 22°
02:00 22°
04:00 21°
06:00 22°
08:00 26° 0.2mm
10:00 27° 1.4mm
12:00 26° 1.4mm
14:00 26° 2.2mm
16:00 25° 1.4mm
18:00 23° 1.4mm
20:00 22° 0.6mm
22:00 22°
🌧️ WednesdaySeptember 16th Avg 24° Low 21° at 05:00 High 29° at 12:00 14.6 mm rain Feels 32° Wind ~8 km/h
Cloudy Rain
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 25° 0.1mm
10:00 28° 0.5mm
12:00 29° 0.5mm
14:00 27° 2mm
16:00 25° 2mm
18:00 23° 2mm
20:00 23° 0.2mm
22:00 23° 0.1mm
🌧️ ThursdaySeptember 17th Avg 24° Low 22° at 00:00 High 29° at 12:00 9.1 mm rain Feels 34° Wind ~5 km/h
Cloudy Rain Cloudy
00:00 22° 0.1mm
02:00 22°
04:00 22°
06:00 23°
08:00 23°
10:00 26° 0.2mm
12:00 29° 0.2mm
14:00 28° 1.2mm
16:00 26° 1.6mm
18:00 24° 1.6mm
20:00 23°
22:00 23°
🌧️ FridaySeptember 18th Avg 25° Low 22° at 05:00 High 31° at 12:00 7.2 mm rain Feels 35° Wind ~6 km/h
Cloudy Partly Cloudy Rain Cloudy
00:00 23°
02:00 22°
04:00 22°
06:00 23°
08:00 26°
10:00 29° 0.1mm
12:00 31° 0.1mm
14:00 29° 1.2mm
16:00 26° 1.1mm
18:00 24° 1.1mm
20:00 24°
22:00 24°
🌧️ SaturdaySeptember 19th Avg 25° Low 23° at 04:00 High 32° at 12:00 22.2 mm rain Feels 36° Wind ~5 km/h
Rain
00:00 23°
02:00 23°
04:00 23° 0.1mm
06:00 23° 0.1mm
08:00 24° 0.1mm
10:00 27° 0.1mm
12:00 32° 0.1mm
14:00 29° 2mm
16:00 26° 2.6mm
18:00 24° 2.6mm
20:00 23° 2.1mm
22:00 23° 0.6mm
🌧️ SundaySeptember 20th Avg 26° Low 23° at 01:00 High 33° at 12:00 16.9 mm rain Feels 37° Wind ~5 km/h
Rain Cloudy Rain
00:00 23° 0.6mm
02:00 23° 0.2mm
04:00 23°
06:00 23°
08:00 26° 0.1mm
10:00 30° 0.3mm
12:00 33° 0.3mm
14:00 29° 0.8mm
16:00 26° 1.6mm
18:00 25° 1.6mm
20:00 24° 2.3mm
22:00 23° 0.2mm
🌧️ MondaySeptember 21st Avg 26° Low 22° at 04:00 High 33° at 12:00 15.5 mm rain Feels 37° Wind ~6 km/h
Rain Partly Cloudy Clear Rain
00:00 23° 0.2mm
02:00 23° 0.4mm
04:00 22°
06:00 23°
08:00 27°
10:00 31°
12:00 33°
14:00 30° 0.5mm
16:00 27° 2.4mm
18:00 25° 2.4mm
20:00 24° 1.6mm
22:00 23° 0.3mm
🌧️ TuesdaySeptember 22nd Avg 26° Low 22° at 05:00 High 33° at 13:00 9.3 mm rain Feels 37° Wind ~7 km/h
Cloudy Rain
00:00 23° 0.3mm
02:00 23°
04:00 22°
06:00 23°
08:00 28°
10:00 31°
12:00 33°
14:00 33° 0.2mm
16:00 29° 2.1mm
18:00 24° 2.1mm
20:00 24° 0.7mm
22:00 23°

Sun

☀️ Sunrise 05:28 · Sunset 17:43

12h 15m of daylight · America/Costa_Rica

Air quality

PM2.5 2.3 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Vaca Blanca · 2 km Koschny · 2.1 km San Rafael · 2.7 km Kopper · 4.2 km Cariblanca · 4.6 km San Juan · 4.6 km

Tools for Unión

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

Common questions about Unión weather

Will it rain in Unión today?

Yes - about 3.2 mm of rain is expected in Unión today.

What is the temperature in Unión right now?

It is 23° in Unión right now, though it feels closer to 28°. Today runs between a low of 21° and a high of 29°.

What time is sunrise and sunset in Unión?

The sun rises at 05:28 and sets at 17:43 local time in Unión today, giving 12h 15m of daylight.

What is the air quality in Unión?

PM2.5 in Unión is currently 2.3 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the 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 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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