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How hot it feels, and when to take care.
Sample content — not an operational product
The daily heat index is not yet published from the GMS forecast system. The figures on this page are illustrative and must not be used for any weather, marine or safety decision.
Feels like at midday
38°C
Extreme caution
Air temperature
31°C
Humidity
70%
The heat index combines air temperature and humidity into a single “feels like” temperature. Your body cools by sweating; in humid air, sweat evaporates slowly, so you feel hotter than the thermometer reads.
In Grenada's humid climate, a 31°C afternoon can feel like the high 30s. Direct sunshine can add several degrees more.
| Feels like | Level | Risk with long exposure or activity |
|---|---|---|
| 27–32°C | Caution | Fatigue is possible |
| 32–41°C | Extreme caution | Heat cramps and heat exhaustion possible |
| 41–54°C | Danger | Heat cramps and exhaustion likely; heat stroke possible |
| Above 54°C | Extreme danger | Heat stroke highly likely |