🇯🇵 Weather in Sayama
Map Overlays:
Hourly Forecast for Sayama
20:00
21°
3%
21:00
20°
2%
22:00
19°
2%
23:00
19°
4%
00:00
18°
6%
01:00
18°
6%
02:00
18°
8%
03:00
18°
8%
04:00
17°
10%
05:00
17°
9%
06:00
18°
9%
07:00
18°
13%
08:00
19°
5%
09:00
20°
8%
10:00
21°
8%
11:00
22°
7%
12:00
22°
4%
13:00
22°
5%
14:00
22°
10%
15:00
22°
73%
16:00
20°
80%
17:00
19°
92%
18:00
19°
93%
19:00
19°
96%
14-Day Forecast for Sayama
2026-06-06
Overcast
24° /
16°
2026-06-07
Moderate rain
22° /
17°
2026-06-08
Moderate rain
21° /
18°
2026-06-09
Patchy rain nearby
28° /
18°
2026-06-10
Patchy rain nearby
27° /
18°
2026-06-11
Patchy rain nearby
28° /
19°
2026-06-12
Partly Cloudy
28° /
19°
Additional Forecasts for Sayama
Air Quality
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 166.0 μg/m³
O₃ (Ozone) 67.0 μg/m³
NO₂ (Nitrogen Dioxide) 19.8 μg/m³
SO₂ (Sulphur Dioxide) 8.9 μg/m³
PM2.5 (Fine particles) 18.6 μg/m³
PM10 (Coarse particles) 19.9 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Japan
Weather in Sayama — FAQ
Answers refreshed each request based on current conditions in Sayama.
What is the weather like right now in Sayama?
Right now in Sayama, Japan the temperature is 21.4°C (feels like 21.4°C), with cloudy. Relative humidity is 59% and wind is 14.0 km/h.
What is today's high and low temperature in Sayama?
Today's forecast high in Sayama is 24.5°C and the overnight low is 16.3°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Sayama today?
The chance of precipitation in Sayama today is 6%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Sayama differ from nearby cities?
Even short distances can change temperatures noticeably. Sayama's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.