}

Daily Mean Heat Index

Time step: Daily - 1 day(s)

Surface plot (contours) of mean daily Heat Index over the greater area of Athens. By default displayed data are for the previous day, ending at 00:00EET(UTC+0200) of the current day. Mean Daily Heat Index is calculated by Mean Daily Temperature and Humidity.

Surface plot (contours) of mean daily Heat Index over the greater area of Athens. By default displayed data are for the previous day, ending at 00:00EET(UTC+0200) of the current day. Mean Daily Heat Index is calculated by Mean Daily Temperature and Humidity.

Effects of the heat index (shade values)

CategoryHeat IndexPotential heat impact.
Caution27–32 °CFatigue is possible with prolonged exposure and activity. Continuing activity could result in heat cramps.
Extreme caution32–41 °CHeat cramps, and heat exhaustion are possible. Continuing activity could result in heat stroke.
Danger41–54 °CHeat cramps, and heat exhaustion are likely; heat stroke is probable with continued activity.
Extreme dangerover 54 °CHeat stroke is imminent.

Image nominal timestamp: 2017-05-22 00:00 (UTC+0200). Timestamp denotes the end of the daily interval, which is displayed.


Related contour plots

Surface plot (contours) of mean monthly Heat Index over the greater area of Athens for the previous month. Mean Monthly Heat Index is calculated by Mean Monthly Temperature and Humidity.

Monthly Mean Heat Index
Time step:
Monthly - 1 month(s)
Nominal timestamp:
2017-04-01 00:00 (UTC+0200)

Surface plot (contours) of mean daily Summer Simmer index (SSI) over the greater area of Athens. By default displayed data are for the previous day, ending at 00:00EET(UTC+0200) of the current day. Mean Daily SSI is calculated by Mean Daily Temperature and Humidity.

Daily Mean SSI
Time step:
Daily - 1 day(s)
Nominal timestamp:
2017-05-22 00:00 (UTC+0200)

Surface plot (contours) of mean daily temperatures over the greater area of Athens. By default displayed data are for the previous day, ending at 00:00EET(UTC+0200) of the current day.

Daily mean temperature
Time step:
Daily - 1 day(s)
Nominal timestamp:
2017-05-22 00:00 (UTC+0200)