Cities / Costa Rica / Alajuela Province

34°

⛅ San Isidro weather

Partly cloudy. No rain expected in the next few hours.

Feels like 37° Wind 14 km/h E Humidity 47% UV 0 Air Good ☀ 05:28 - 17:45

Right now it is 34° in San Isidro with partly cloudy skies, it feels more like 37°, today's high is 34° with an overnight low of 23° and about 4.5 mm of rain is expected. The sun rises at 05:28 and sets at 17:45, giving 12h 17m of daylight. Over the coming week highs range from 27° to 34°.

San Isidro is in Alajuela Province, Costa Rica, sitting 46 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° 28° 34° 34° 23° 14:00 · 33.7° · 0 mm 15:00 · 33.2° · 0 mm 16:00 · 31.9° · 0 mm 17:00 · 29.5° · 0 mm 18:00 · 26.7° · 0 mm 19:00 · 25.2° · 0 mm 20:00 · 24.4° · 0 mm 21:00 · 23.9° · 0 mm 22:00 · 23.4° · 0 mm 23:00 · 23.3° · 0 mm 00:00 · 23.2° · 0 mm 01:00 · 23.1° · 0 mm 02:00 · 23° · 0 mm 03:00 · 22.9° · 0 mm 04:00 · 22.9° · 0 mm 05:00 · 22.8° · 0 mm 06:00 · 23.3° · 0 mm 07:00 · 25.2° · 0 mm 08:00 · 26.7° · 0.1 mm 09:00 · 30.3° · 0 mm 10:00 · 29.6° · 0.9 mm 11:00 · 29.3° · 0.8 mm 12:00 · 29.7° · 1 mm 13:00 · 29.5° · 1.2 mm

Precipitation

14:00 · 0 mm 14:00 15:00 · 0 mm 16:00 · 0 mm 17:00 · 0 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 23:00 · 0 mm 23:00 00:00 · 0 mm 01:00 · 0 mm 02:00 · 0 mm 02:00 03:00 · 0 mm 04:00 · 0 mm 05:00 · 0 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0.1 mm 08:00 09:00 · 0 mm 10:00 · 0.9 mm 11:00 · 0.8 mm 11:00 12:00 · 1 mm 13:00 · 1.2 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
14:00 ⛅ 33.7° 35.1° - Partly cloudy
15:00 ☁️ 33.2° 35.2° - Overcast
16:00 🌤️ 31.9° 34.4° - Mostly clear
17:00 ⛅ 29.5° 32.2° - Partly cloudy
18:00 ☁️ 26.7° 30.1° - Overcast
19:00 ☁️ 25.2° 29° - Overcast
20:00 ☁️ 24.4° 28.5° - Overcast
21:00 ☁️ 23.9° 28.4° - Overcast
22:00 ☁️ 23.4° 27.9° - Overcast
23:00 ☁️ 23.3° 27.8° - Overcast
00:00 ☁️ 23.2° 27.8° - Overcast
01:00 ☁️ 23.1° 27.7° - Overcast

Next 16 days

Today🌧️ 34°23°4.5mm Sun 6🌧️ 30°23°10mm Mon 7🌧️ 31°22°11.9mm Tue 8🌧️ 27°23°5.6mm Wed 9🌧️ 28°22°27.3mm Thu 10⛅ 34°22°0.3mm Fri 11🌧️ 30°22°6.9mm Sat 12🌧️ 30°22°14mm Sun 13🌧️ 29°23°6.7mm Mon 14🌧️ 27°23°20.7mm Tue 15🌧️ 28°23°22.7mm Wed 16🌧️ 27°22°17.8mm Thu 17🌧️ 28°22°12.6mm Fri 18🌦️ 27°23°3.3mm Sat 19🌧️ 32°22°7.2mm Sun 20🌧️ 31°22°8.7mm
🌧️ TodaySeptember 5th Avg 27° Low 23° at 05:00 High 34° at 14:00 4.5 mm rain Wind ~14 km/h
Rain Cloudy Rain Cloudy
00:00 23°
02:00 23° 0.1mm
04:00 23° 0.1mm
06:00 24°
08:00 26° 0.3mm
10:00 28° 1.3mm
12:00 31° 0.5mm
14:00 34°
16:00 32°
18:00 27°
20:00 24°
22:00 23°
🌧️ SundaySeptember 6th Avg 26° Low 23° at 05:00 High 30° at 09:00 10 mm rain Feels 35° Wind ~7 km/h
Cloudy Rain
00:00 23°
02:00 23°
04:00 23°
06:00 23°
08:00 27° 0.1mm
10:00 30° 0.9mm
12:00 30° 1mm
14:00 30° 0.9mm
16:00 29° 0.7mm
18:00 24° 0.9mm
20:00 23° 0.3mm
22:00 23°
🌧️ MondaySeptember 7th Avg 25° Low 22° at 05:00 High 31° at 13:00 11.9 mm rain Feels 36° Wind ~5 km/h
Rain Rain Cloudy
00:00 23°
02:00 23°
04:00 23° 0.3mm
06:00 23° 2.4mm
08:00 26°
10:00 28° 0.2mm
12:00 31° 0.1mm
14:00 28° 2mm
16:00 27° 0.7mm
18:00 25°
20:00 25°
22:00 24° 0.1mm
🌧️ TuesdaySeptember 8th Avg 25° Low 23° at 04:00 High 27° at 10:00 5.6 mm rain Feels 33° Wind ~6 km/h
Cloudy Rain Cloudy
00:00 24°
02:00 23°
04:00 23°
06:00 24°
08:00 27° 0.4mm
10:00 27° 1.2mm
12:00 27° 0.5mm
14:00 27° 0.5mm
16:00 25° 0.2mm
18:00 25°
20:00 24°
22:00 24°
🌧️ WednesdaySeptember 9th Avg 25° Low 22° at 23:00 High 28° at 11:00 27.3 mm rain Feels 32° Wind ~11 km/h
Rain Cloudy
00:00 24° 0.6mm
02:00 23° 3.4mm
04:00 23° 2mm
06:00 23° 2.4mm
08:00 26° 1.3mm
10:00 27° 1.3mm
12:00 27° 1.5mm
14:00 27° 1.1mm
16:00 26° 0.3mm
18:00 24°
20:00 23°
22:00 23°
⛅ ThursdaySeptember 10th Avg 26° Low 22° at 05:00 High 34° at 13:00 0.3 mm rain Wind ~13 km/h
Clear Rain Partly Cloudy Clear
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 26° 0.1mm
10:00 30°
12:00 33°
14:00 34°
16:00 31°
18:00 26°
20:00 24°
22:00 24°
🌧️ FridaySeptember 11th Avg 25° Low 22° at 04:00 High 30° at 12:00 6.9 mm rain Feels 34° Wind ~8 km/h
Cloudy Cloudy Rain Partly Cloudy
00:00 23°
02:00 23°
04:00 22°
06:00 23°
08:00 26° 0.3mm
10:00 29° 1mm
12:00 30° 1mm
14:00 29° 0.8mm
16:00 28° 0.2mm
18:00 25° 0.2mm
20:00 24°
22:00 23°
🌧️ SaturdaySeptember 12th Avg 25° Low 22° at 04:00 High 30° at 14:00 14 mm rain Feels 36° Wind ~7 km/h
Rain Clear Rain
00:00 23°
02:00 22° 0.1mm
04:00 22°
06:00 23°
08:00 25° 0.7mm
10:00 27° 1.9mm
12:00 29° 1.9mm
14:00 30° 1.4mm
16:00 28° 0.4mm
18:00 25° 0.4mm
20:00 24° 0.1mm
22:00 23° 0.1mm
🌧️ SundaySeptember 13th Avg 25° Low 23° at 05:00 High 29° at 14:00 6.7 mm rain Feels 33° Wind ~9 km/h
Partly Cloudy Rain Cloudy
00:00 23° 0.1mm
02:00 23°
04:00 23°
06:00 23°
08:00 26° 0.6mm
10:00 28° 1.4mm
12:00 28° 1.4mm
14:00 29° 0.2mm
16:00 28°
18:00 25°
20:00 24°
22:00 24°
🌧️ MondaySeptember 14th Avg 24° Low 23° at 05:00 High 27° at 10:00 20.7 mm rain Feels 32° Wind ~5 km/h
Rain Cloudy Rain
00:00 23°
02:00 23° 0.7mm
04:00 23° 2.6mm
06:00 23° 2.6mm
08:00 26° 1mm
10:00 27° 2.1mm
12:00 26° 2.1mm
14:00 26° 0.4mm
16:00 25°
18:00 24°
20:00 24° 0.1mm
22:00 24°
🌧️ TuesdaySeptember 15th Avg 24° Low 23° at 22:00 High 28° at 13:00 22.7 mm rain Feels 33° Wind ~7 km/h
Rain
00:00 23°
02:00 23° 1.3mm
04:00 23° 1.3mm
06:00 23° 1.3mm
08:00 23° 1mm
10:00 25° 0.4mm
12:00 28° 0.4mm
14:00 28° 1.1mm
16:00 26° 0.5mm
18:00 24° 0.5mm
20:00 23° 1.3mm
22:00 23° 1mm
🌧️ WednesdaySeptember 16th Avg 24° Low 22° at 05:00 High 27° at 11:00 17.8 mm rain Feels 33° Wind ~6 km/h
Rain Cloudy Rain
00:00 23° 1mm
02:00 23° 0.1mm
04:00 22°
06:00 23°
08:00 25° 0.4mm
10:00 27° 1.6mm
12:00 27° 1.6mm
14:00 26° 1.7mm
16:00 24° 1.5mm
18:00 24° 1.5mm
20:00 23° 0.3mm
22:00 23°
🌧️ ThursdaySeptember 17th Avg 24° Low 22° at 04:00 High 28° at 10:00 12.6 mm rain Feels 34° Wind ~6 km/h
Cloudy Rain
00:00 23°
02:00 22°
04:00 22°
06:00 23°
08:00 27°
10:00 28° 0.9mm
12:00 28° 0.9mm
14:00 26° 1.8mm
16:00 25° 1.2mm
18:00 24° 1.2mm
20:00 24° 0.3mm
22:00 23°
🌦️ FridaySeptember 18th Avg 24° Low 23° at 05:00 High 27° at 09:00 3.3 mm rain Feels 32° Wind ~4 km/h
Cloudy Rain Cloudy
00:00 23°
02:00 23°
04:00 23°
06:00 23°
08:00 26°
10:00 26° 0.5mm
12:00 25° 0.5mm
14:00 25° 0.5mm
16:00 24° 0.1mm
18:00 24° 0.1mm
20:00 23°
22:00 23°
🌧️ SaturdaySeptember 19th Avg 26° Low 22° at 05:00 High 32° at 12:00 7.2 mm rain Feels 37° Wind ~4 km/h
Cloudy Rain Cloudy
00:00 23°
02:00 23°
04:00 23°
06:00 23°
08:00 27°
10:00 30° 0.1mm
12:00 32° 0.1mm
14:00 30° 1.7mm
16:00 27° 0.6mm
18:00 25° 0.6mm
20:00 24°
22:00 23°
🌧️ SundaySeptember 20th Avg 25° Low 22° at 05:00 High 31° at 10:00 8.7 mm rain Feels 35° Wind ~5 km/h
Partly Cloudy Cloudy Rain
00:00 23°
02:00 22°
04:00 22°
06:00 23°
08:00 28°
10:00 31° 0.2mm
12:00 30° 0.2mm
14:00 29° 1.5mm
16:00 27° 1.1mm
18:00 24° 1.1mm
20:00 24° 0.1mm
22:00 23°

Sun

☀️ Sunrise 05:28 · Sunset 17:45

12h 17m of daylight · America/Costa_Rica

Air quality

PM2.5 4.2 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Esperanza · 0.5 km Isla Chica · 1.8 km San Rafael · 2.3 km San Alejandro · 2.4 km Masaya · 2.5 km Santa Rita · 2.5 km

Tools for San Isidro

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

Common questions about San Isidro weather

Will it rain in San Isidro today?

Yes - about 4.5 mm of rain is expected in San Isidro today.

What is the temperature in San Isidro right now?

It is 34° in San Isidro right now, though it feels closer to 37°. Today runs between a low of 23° and a high of 34°.

What time is sunrise and sunset in San Isidro?

The sun rises at 05:28 and sets at 17:45 local time in San Isidro today, giving 12h 17m of daylight.

What is the air quality in San Isidro?

PM2.5 in San Isidro is currently 4.2 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 San Isidro 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 San Isidro 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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