Heat stress in Mobile
Gulf Coast humidity soaks this port city through summer, keeping wet-bulb temperatures dangerously high day and night.
Reduce exertion and hydrate frequently. Take regular breaks somewhere cooler.
Wet-bulb globe temperature via the Liljegren (2008) method. This page is cached and refreshes in the background, so the live badge below can be a few minutes ahead of it.
View Mobile on the live mapReading heat stress in Mobile
Wet-bulb globe temperature (WBGT) is the heat measure that actually tracks danger to the body. Unlike the plain air temperature on your phone, it folds in humidity, wind, and direct sun: the factors that decide whether your sweat can still cool you. It’s the standard the military, athletic associations, and occupational-safety bodies use to call when outdoor activity is no longer safe.
That matters in Mobile because gulf Coast humidity soaks this port city through summer, keeping wet-bulb temperatures dangerously high day and night. The number above is the live outdoor WBGT for the city right now; tap through to the live map to inspect any neighborhood, scrub the forecast hour by hour, and see the 7-day outlook.
How hot Mobile usually gets
Across 2015–2024, Mobile averaged a 89°F daily high in summer: 58th hottest of the 174 metros we track, and August is typically the warmest month.
Most of the heat here sits below the extremes: around 43 days a year top 90°F, and only about 3 reach 100°F.
Humidity is the real story: summer averages about 78%, so sweat evaporates poorly and heat stress runs well above what a 89°F afternoon suggests.
A bad day runs well past a normal one, with 106°F recorded against a 89°F summer average.
Daily high temperatures and humidity from ERA5 reanalysis, 2015–2024 (hottest day in the sample: 2023-08-26). These are climate averages for context: the reading at the top of this page is the live one.
For school sports, AHSAA (Alabama High School Athletic Association) publishes AHSAA Heat Stress Exercise Restrictions (updated 28 May 2024), which uses wet-bulb globe temperature. Alabama’s activity zones appear beside the live reading in the app.
Heat in Mobile: common questions
How hot does it usually get in Mobile?
Across 2015–2024, Mobile averaged a 89°F daily high through summer, with about 43 days a year at or above 90°F and 3 at or above 100°F. August is typically the hottest month, and the hottest day in that sample reached 106°F. Figures are from ERA5 daily reanalysis.
When is the hottest time of year in Mobile?
August has the highest average daily high in Mobile. Humidity is the real story here: summer averages about 78%, so sweat evaporates poorly and heat stress runs well above what the temperature alone suggests. Use the forecast on this page to plan around the specific days that matter.
Does Alabama have a heat policy for school sports?
AHSAA (Alabama High School Athletic Association) publishes AHSAA Heat Stress Exercise Restrictions (updated 28 May 2024), which uses wet-bulb globe temperature. Alabama’s activity zones appear beside the live reading in the app. Our WBGT is a modeled estimate rather than the on-site device reading a policy may call for, so check the association's own document for current requirements.
What is the WBGT in Mobile right now?
The reading at the top of this page is the current wet-bulb globe temperature for Mobile, Alabama, computed from live weather by the Liljegren (2008) method and labeled with how recently it updated. For an exact reading at your own neighborhood, plus an hour-by-hour forecast, open the live map.
Why is WBGT more useful than the temperature for Mobile?
Air temperature ignores humidity, wind, and sun: the things that decide whether heat is dangerous. Mobile's climate (gulf Coast humidity soaks this port city through summer, keeping wet-bulb temperatures dangerously high day and night.) is exactly why a single "feels-like" or thermometer reading can understate the real risk. WBGT captures all of it in one number.
When is heat most dangerous in Mobile?
August is the peak month in Mobile, and within a day heat stress is highest in the early-to-mid afternoon when sun load is greatest. About 43 days a year reach 90°F, so most of the risk sits in a handful of afternoons rather than across the whole season. Use the forecast on this page to find the window that works.
Put Mobile’s live heat stress on your site
A self-updating WBGT badge for schools, teams, camps, and local sites: it always shows the current reading and links back here.
<iframe src="https://wetbulbtracker.com/embed/mobile-al" width="340" height="150" style="border:0" title="Live WBGT: Mobile, AL" loading="lazy"></iframe>Paste it into any website. The badge updates itself and links back here. Add ?theme=light for light sites.