Hiking conditions
Is It Too Hot to Hike in San Jose Today?
Use the environmental risk signals below to adjust timing, intensity, shade, and recovery.
Forecast conditions
Fair
Adjust pace and take regular water breaks.
Heat index
78°F
WBGT est.
22.0°C
UV
4.3
Hourly hiking conditions
| Time | Temperature | Heat index | Estimated WBGT | UV | Risk |
|---|---|---|---|---|---|
| 4 PM | 76°F | 78°F | 22.0°C | 4.3 | Low |
| 6 PM | 71°F | 76°F | 20.0°C | 0.9 | Low |
| 7 AM | 57°F | 57°F | 14.6°C | 0.1 | Low |
| 9 AM | 65°F | 65°F | 17.0°C | 1.7 | Low |
| 11 AM | 75°F | 77°F | 20.0°C | 5.6 | Low |
| 1 PM | 83°F | 81°F | 22.4°C | 8.5 | Moderate |
| 3 PM | 84°F | 82°F | 22.8°C | 6.5 | Moderate |
| 5 PM | 79°F | 79°F | 21.7°C | 2.4 | Low |
Three-day forecast
Thursday
Heat index up to 78°F
76° / 57°
LowFriday
Heat index up to 83°F
85° / 57°
ModerateSaturday
Heat index up to 88°F
92° / 55°
ModerateKnow when it's safer to hike
HeatGuard can notify you as conditions improve and keep this location saved.