Cities / Japan / Saitama

26°

🌦️ Koyama weather

Light rain. Light rain starting around 11:00pm.

Feels like 29° Wind 8 km/h SW Humidity 73% UV 2 Air Moderate ☀ 05:14 - 18:06

Right now it is 26° in Koyama with light rain, it feels more like 29°, today's high is 34° with an overnight low of 26° and about 5.7 mm of rain is expected. The sun rises at 05:14 and sets at 18:06, giving 12h 52m of daylight. Over the coming week highs range from 23° to 32°.

Koyama is in Saitama, Japan, sitting 6 m above sea level. Local time is Asia/Tokyo (UTC+9), and every time on this page is shown in it.

Next 24 hours - temperature

23° 26° 29° 29° 23° 23:00 · 25.9° · 0.2 mm 00:00 · 25.7° · 0.3 mm 01:00 · 25.5° · 0.7 mm 02:00 · 25.4° · 0.4 mm 03:00 · 25.6° · 0 mm 04:00 · 25.3° · 0.2 mm 05:00 · 25.2° · 0 mm 06:00 · 25.1° · 0 mm 07:00 · 25.1° · 0 mm 08:00 · 25.1° · 0 mm 09:00 · 25.9° · 0 mm 10:00 · 26.9° · 0 mm 11:00 · 27.5° · 0 mm 12:00 · 28° · 0 mm 13:00 · 28.2° · 0 mm 14:00 · 28.9° · 0 mm 15:00 · 28.5° · 0 mm 16:00 · 27° · 0.1 mm 17:00 · 25.9° · 0.1 mm 18:00 · 25.6° · 0 mm 19:00 · 25.4° · 0 mm 20:00 · 24.9° · 0 mm 21:00 · 24.1° · 0.2 mm 22:00 · 23.3° · 0.6 mm

Precipitation

23:00 · 0.2 mm 23:00 00:00 · 0.3 mm 01:00 · 0.7 mm 02:00 · 0.4 mm 02:00 03:00 · 0 mm 04:00 · 0.2 mm 05:00 · 0 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 mm 13:00 · 0 mm 14:00 · 0 mm 14:00 15:00 · 0 mm 16:00 · 0.1 mm 17:00 · 0.1 mm 17:00 18:00 · 0 mm 19:00 · 0 mm 20:00 · 0 mm 20:00 21:00 · 0.2 mm 22:00 · 0.6 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
23:00 🌦️ 25.9° 28.3° 0.2 mm Light rain
00:00 🌦️ 25.7° 28.9° 0.3 mm Light rain
01:00 🌦️ 25.5° 29.3° 0.7 mm Light rain
02:00 🌦️ 25.4° 29.5° 0.4 mm Light rain
03:00 ☁️ 25.6° 29.5° - Overcast
04:00 🌦️ 25.3° 28.6° 0.2 mm Light rain
05:00 ☁️ 25.2° 28.8° - Overcast
06:00 ☁️ 25.1° 28.6° - Overcast
07:00 ☁️ 25.1° 28.2° - Overcast
08:00 ☁️ 25.1° 27.6° - Overcast
09:00 ☁️ 25.9° 27.9° - Overcast
10:00 ☁️ 26.9° 28.7° - Overcast

Next 16 days

Today🌧️ 34°26°5.7mm Fri 4🌦️ 29°23°3.1mm Sat 5🌧️ 23°21°18.1mm Sun 6🌧️ 25°21°1.3mm Mon 7🌧️ 26°21°10.4mm Tue 8🌦️ 32°24°1.4mm Wed 9🌦️ 32°25°1.5mm Thu 10🌦️ 26°21°2.2mm Fri 11☀️ 31°21° Sat 12☀️ 34°25° Sun 13☁️ 30°24°0.3mm Mon 14🌧️ 30°24°3.9mm Tue 15🌦️ 33°25°0.9mm Wed 16⛅ 32°26° Thu 17🌧️ 30°25°15.6mm Fri 18🌦️ 29°22°0.3mm
🌧️ TodaySeptember 3rd Avg 29° Low 26° at 21:00 High 34° at 13:00 5.7 mm rain Wind ~29 km/h
Cloudy Cloudy Rain Rain
00:00 27°
02:00 27°
04:00 27°
06:00 27°
08:00 29°
10:00 31°
12:00 33°
14:00 34°
16:00 29° 1.6mm
18:00 27°
20:00 26° 0.5mm
22:00 26° 0.3mm
🌦️ FridaySeptember 4th Avg 26° Low 23° at 23:00 High 29° at 14:00 3.1 mm rain Feels 31° Wind ~14 km/h
Rain Cloudy Cloudy Rain
00:00 26° 0.3mm
02:00 25° 0.4mm
04:00 25° 0.2mm
06:00 25°
08:00 25°
10:00 27°
12:00 28°
14:00 29°
16:00 27° 0.1mm
18:00 26°
20:00 25°
22:00 23° 0.6mm
🌧️ SaturdaySeptember 5th Avg 22° Low 21° at 10:00 High 23° at 00:00 18.1 mm rain Feels 25° Wind ~21 km/h
Rain Rain Cloudy
00:00 23° 2.2mm
02:00 22° 2.3mm
04:00 22° 1.5mm
06:00 21° 3.4mm
08:00 21° 0.1mm
10:00 21° 0.9mm
12:00 21° 0.1mm
14:00 22°
16:00 22°
18:00 22°
20:00 22°
22:00 22°
🌧️ SundaySeptember 6th Avg 23° Low 21° at 05:00 High 25° at 11:00 1.3 mm rain Feels 22° Wind ~29 km/h
Cloudy Rain Cloudy
00:00 22°
02:00 22°
04:00 22°
06:00 22°
08:00 23°
10:00 24° 0.1mm
12:00 25° 0.1mm
14:00 24°
16:00 24°
18:00 24°
20:00 23°
22:00 23°
🌧️ MondaySeptember 7th Avg 23° Low 21° at 03:00 High 26° at 16:00 10.4 mm rain Wind ~41 km/h
Rain Cloudy
00:00 22° 1.4mm
02:00 21° 1.7mm
04:00 21° 1.3mm
06:00 22° 0.4mm
08:00 22° 0.2mm
10:00 21° 0.6mm
12:00 22°
14:00 24°
16:00 26°
18:00 25°
20:00 24°
22:00 24°
🌦️ TuesdaySeptember 8th Avg 27° Low 24° at 05:00 High 32° at 13:00 1.4 mm rain Wind ~26 km/h
Clear Cloudy
00:00 25°
02:00 25°
04:00 24°
06:00 24°
08:00 26°
10:00 29°
12:00 31°
14:00 31°
16:00 30°
18:00 28°
20:00 27°
22:00 26° 0.7mm
🌦️ WednesdaySeptember 9th Avg 29° Low 25° at 05:00 High 32° at 14:00 1.5 mm rain Wind ~33 km/h
Cloudy Partly Cloudy Rain Partly Cloudy
00:00 25° 0.7mm
02:00 26°
04:00 26°
06:00 25°
08:00 28°
10:00 30° 0.1mm
12:00 32° 0.1mm
14:00 32° 0.1mm
16:00 32°
18:00 31°
20:00 29°
22:00 28° 0.1mm
🌦️ ThursdaySeptember 10th Avg 23° Low 21° at 18:00 High 26° at 00:00 2.2 mm rain Feels 29° Wind ~21 km/h
Rain Cloudy
00:00 26° 0.1mm
02:00 25° 0.1mm
04:00 24° 0.1mm
06:00 23° 0.1mm
08:00 23° 0.1mm
10:00 23° 0.1mm
12:00 22° 0.1mm
14:00 23° 0.2mm
16:00 22° 0.1mm
18:00 21° 0.1mm
20:00 21°
22:00 21°
☀️ FridaySeptember 11th Avg 26° Low 21° at 02:00 High 31° at 14:00 Wind ~30 km/h
Cloudy Partly Cloudy Clear
00:00 21°
02:00 21°
04:00 21°
06:00 21°
08:00 23°
10:00 26°
12:00 30°
14:00 31°
16:00 30°
18:00 29°
20:00 28°
22:00 28°
☀️ SaturdaySeptember 12th Avg 29° Low 25° at 23:00 High 34° at 14:00 Wind ~24 km/h
Clear
00:00 27°
02:00 27°
04:00 27°
06:00 26°
08:00 28°
10:00 30°
12:00 33°
14:00 34°
16:00 32°
18:00 28°
20:00 27°
22:00 25°
☁️ SundaySeptember 13th Avg 26° Low 24° at 01:00 High 30° at 13:00 0.3 mm rain Wind ~21 km/h
Partly Cloudy Cloudy Rain Partly Cloudy
00:00 25°
02:00 24°
04:00 24°
06:00 25°
08:00 26°
10:00 27°
12:00 30°
14:00 30° 0.1mm
16:00 29°
18:00 27°
20:00 26°
22:00 25°
🌧️ MondaySeptember 14th Avg 27° Low 24° at 05:00 High 30° at 13:00 3.9 mm rain Wind ~19 km/h
Partly Cloudy Clear Rain Cloudy
00:00 24°
02:00 24°
04:00 24°
06:00 24°
08:00 27°
10:00 29° 0.1mm
12:00 30° 0.1mm
14:00 30° 1mm
16:00 29° 0.2mm
18:00 28° 0.2mm
20:00 27°
22:00 26°
🌦️ TuesdaySeptember 15th Avg 28° Low 25° at 05:00 High 33° at 14:00 0.9 mm rain Wind ~18 km/h
Partly Cloudy Clear Partly Cloudy Cloudy Rain
00:00 26°
02:00 25°
04:00 25°
06:00 25°
08:00 27°
10:00 29°
12:00 31°
14:00 33°
16:00 32° 0.2mm
18:00 30° 0.2mm
20:00 28° 0.1mm
22:00 27°
⛅ WednesdaySeptember 16th Avg 29° Low 26° at 04:00 High 32° at 13:00 Wind ~26 km/h
Clear Cloudy Partly Cloudy Cloudy
00:00 27°
02:00 26°
04:00 26°
06:00 26°
08:00 28°
10:00 31°
12:00 32°
14:00 32°
16:00 32°
18:00 31°
20:00 30°
22:00 30°
🌧️ ThursdaySeptember 17th Avg 28° Low 25° at 23:00 High 30° at 00:00 15.6 mm rain Feels 33° Wind ~19 km/h
Cloudy Rain
00:00 30°
02:00 29°
04:00 27°
06:00 27°
08:00 27° 3.2mm
10:00 29° 0.1mm
12:00 30° 0.1mm
14:00 30° 0.1mm
16:00 28° 0.6mm
18:00 27° 0.6mm
20:00 26° 1mm
22:00 25° 0.3mm
🌦️ FridaySeptember 18th Avg 25° Low 22° at 23:00 High 29° at 13:00 0.3 mm rain Feels 26° Wind ~24 km/h
Cloudy Partly Cloudy Clear
00:00 25° 0.3mm
02:00 25°
04:00 24°
06:00 24°
08:00 25°
10:00 26°
12:00 28°
14:00 29°
16:00 27°
18:00 24°
20:00 23°
22:00 23°

Sun

☀️ Sunrise 05:14 · Sunset 18:06

12h 52m of daylight · Asia/Tokyo

Air quality

PM2.5 25.7 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

Angyō-koyama · 0.4 km Angyō-kitaya · 0.5 km Naezukachō · 0.6 km Kitaya · 0.7 km Orikoshi · 0.7 km Hanaguri · 0.8 km

Tools for Koyama

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

Common questions about Koyama weather

Will it rain in Koyama today?

Yes - about 5.7 mm of rain is expected in Koyama today.

What is the temperature in Koyama right now?

It is 26° in Koyama right now, though it feels closer to 29°. Today runs between a low of 26° and a high of 34°.

What time is sunrise and sunset in Koyama?

The sun rises at 05:14 and sets at 18:06 local time in Koyama today, giving 12h 52m of daylight.

What is the air quality in Koyama?

PM2.5 in Koyama is currently 25.7 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 Koyama 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 Koyama 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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