Working outside in July and August is brutal. This guide is a practical day-by-day playbook — not a feel-good piece about "staying cool." It's how to actually keep working at capacity through summer.
The night before
- Hydrate the night before, not the morning of. You can't front-load water in 30 minutes.
- Skip alcohol on consecutive hot work days. Even one beer the night before measurably lowers your heat tolerance the next day.
- Charge your cooling gear — neck fan, phone, radio.
- Pack extra electrolyte packets (not just sugary drinks — real sodium + potassium).
- Set out lightweight, long-sleeve, light-colored clothes. Counter-intuitive but long sleeves protect your skin from direct sun which reduces heat gain overall.
First 2 hours of the shift (before 10am)
- This is your best working window. Tackle the hardest physical work early.
- Eat a light breakfast — cereal, toast, fruit. Skip the heavy meat-and-potatoes until evening.
- Start hydration before you're thirsty. Thirst is a lagging indicator.
10am to 2pm — the danger window
- If you have flexibility, move to shaded or indoor work during this stretch.
- Take a real break every 60-90 minutes — 10 minutes in shade, 8 oz of water + electrolytes.
- Watch for early heat illness: nausea, dizziness, unusual irritability, stopping sweating even though you're hot, cramping. Any of these = stop work, shade, water, tell someone.
- Your neck fan matters most during this window. Continuous airflow extends how long you can work safely.
2pm to 5pm
- Finishing tasks, lower-intensity work.
- Still taking breaks — just shorter intervals (5 min every 45 min is fine if intensity is lower).
- Don't skip water just because you're "almost done."
End of shift
- Cool down actively — cold shower, 15 minutes in AC, a cold wet towel on your neck.
- Eat a substantial meal + 16-24 oz of water with electrolytes.
- Check your piss color — if it's dark yellow or orange, drink more. Should be pale yellow.
- Charge your gear for tomorrow.
Gear that actually earns its keep
- Hands-free neck fan. Keeps airflow on you continuously. Hands-free means your tools stay in your hands. See BRISKI for Construction.
- Light-colored, long-sleeve shirts. UPF-rated if you can swing it.
- Vented hard hat insert or neck shade, depending on your trade.
- Insulated water cooler at the worksite. Not optional.
- Electrolyte powder/packets. Not Gatorade — the sugar load is too high for continuous use. Look for LMNT, Liquid I.V., or just straight oral rehydration salts.
- A cooling towel as a backup for the worst moments.
The OSHA piece nobody mentions
Federal OSHA doesn't have a specific heat standard (yet — it's been in rulemaking). But most states with heavy outdoor industries (CA, WA, MN, OR) do. If your employer isn't providing water, shade, and rest breaks during extreme heat, that's worth knowing about. OSHA heat hazards page.
Take care of yourself out there. The work is going to be there tomorrow. You might not be if you push through heat stroke.