Yokohama WBGT Today — Wet Bulb Globe Temperature
Updated planning preview · 12:00 forecast from WeatherAPI
Estimated WBGT
23.4°C
Moderate
Add breaks and watch how you feel.
Temperature
23°C
Humidity
84%
Heat index
25°C
UV index
8.0
Best outdoor window
14:00–6:00
Lowest combined heat and UV load in the available hourly preview.
Hourly WBGT
WBGT values are labeled as modeled estimates until a provider supplies measured readings.
| Time | Temperature | Heat index | Estimated WBGT | UV | Risk |
|---|---|---|---|---|---|
| 12 | 23°C | 25°C | 23.4°C | 8.0 | Low |
| 14 | 24°C | 26°C | 23.8°C | 4.8 | Low |
| 16 | 24°C | 26°C | 24.5°C | 1.1 | Low |
| 6 | 25°C | 28°C | 25.6°C | 0.1 | Moderate |
| 8 | 26°C | 29°C | 26.1°C | 2.3 | Moderate |
| 10 | 27°C | 30°C | 26.4°C | 6.6 | Moderate |
| 12 | 27°C | 30°C | 26.8°C | 8.4 | Moderate |
| 14 | 27°C | 30°C | 26.7°C | 5.1 | Moderate |
Today's outlook
In Yokohama, the highest modeled heat burden in this preview occurs around 14:00. The recommended window is selected from the lowest combined risk score, temperature, and UV—not from generic city copy.
Three-day forecast
Sunday
Heat index up to 28°C
25°C / 22°C
ModerateMonday
Heat index up to 30°C
27°C / 25°C
ModerateTuesday
Heat index up to 29°C
27°C / 23°C
ModerateToday in Yokohama
What changes across the day
Based on the available hourly WeatherAPI forecast
Peak heat index
30°C at 12:00
The preview low is 25°C around 12:00.
Feels-like difference
2°C above air temp
Current humidity is 84%, one input that changes evaporative cooling.
Peak UV
8.4 at 12:00
UV and heat are separate hazards; the lowest-heat hour may still need sun protection.
Tomorrow's direction
3°C hotter tomorrow
Today's forecast range is 22°C–25°C.
Where these numbers come from
WeatherAPI supplies the forecast. HeatGuard calculates heat-index risk and models WBGT from forecast temperature, humidity and a daytime solar allowance. Modeled WBGT is not an on-site globe-thermometer reading.
Local planning context
Planning for heat in Yokohama, Japan
Yokohama's humid summer weather and exposed waterfront or sports settings can create heat stress beyond the air temperature alone. Compare this hourly estimate with Japan's official local WBGT observation and heat-stroke alert.
Forecasts describe outdoor conditions, not an individual's medical risk. Workload, duration, shade, clothing, acclimatization and health can change the appropriate decision.
Check Japan Ministry of the Environment WBGT forecast ↗Nearby forecasts
Keep planning
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