As we move into May, the days get longer and the weather begins to warm up. For many runners this feels like a welcome change, but it can also make training feel unexpectedly harder if you don’t adapt.
A small rise in temperature can have a big impact on effort, pacing and recovery. With a few sensible adjustments, you can continue training consistently and comfortably through late spring and into summer.
Below are some simple, practical tips to help you run well as the weather changes.
Adjust Pace, Not Effort
In warmer conditions your body has to work harder to regulate temperature. That often means the pace that felt comfortable in winter suddenly feels more demanding.
This isn’t a loss of fitness.
Focus on effort rather than pace.
If your easy run feels harder than normal, slowing down is the correct response. Let effort guide the session and trust that your fitness is still there.
Hydration Starts Before You Run
Hydration isn’t just about carrying water on a long run. It starts earlier in the day.
- Drink regularly throughout the day
- Don’t wait until you feel thirsty
- Aim for pale yellow urine as a simple guide
For runs over 60 minutes, or on warmer days, it’s sensible to plan hydration into your run with bottled routes, fountains or a handheld bottle. Some runners may also benefit from electrolytes if they sweat heavily.
Choose Smarter Run Times
Running in direct sun can turn a straightforward session into a very tough one.
Whenever possible:
- Run early in the morning or later in the evening
- Avoid the strongest midday sun
- Use shaded routes or trails
If conditions feel tougher than expected, it’s fine to shorten the run or ease back. Long‑term consistency matters far more than any single session.
Dress for the Conditions
What you wear can make a noticeable difference in warmer weather.
- Lightweight, breathable fabrics
- Light colours to reflect heat
- A cap or visor for sun protection
- Sunglasses to reduce glare
And don’t forget sunscreen. Spring sun can still be strong, even if it doesn’t feel hot.
Be Flexible as Temperatures Rise
Spring weather can change quickly. You might start a run in cool conditions only to finish feeling much warmer.
If effort rises during a run:
- Slow the pace
- Add short walk breaks if needed
- Focus on finishing feeling controlled rather than exhausted
This approach reduces fatigue and keeps your training on track over the week.
Prioritise Recovery
Warm-weather running increases overall stress on the body, even when training volume stays the same.
Make recovery a priority:
- Rehydrate after every run
- Eat soon after finishing
- Keep easy days genuinely easy
- Aim for good-quality sleep
If fatigue builds or motivation dips, that’s often a sign to back off slightly rather than push on.
Know When to Stop
Always take warning signs seriously. Slow down or stop if you experience:
- Dizziness or nausea
- Headache
- Unusual fatigue
- Chills or goosebumps in warm conditions
There’s no benefit in pushing through heat-related symptoms.
Final Thoughts
Summer running isn’t about forcing pace or mileage. It’s about adapting intelligently to the conditions so you can train consistently and stay healthy.
Small adjustments now — pacing, hydration, recovery — make a big difference over the coming months.
If you’d like help adapting your training for warmer weather, or want support with pacing, session structure or long‑term planning, that’s exactly what coaching is there for.