Lisbon · August
Run in the morning.
Comfortable average high of 82°F, dipping to 65°F at night. Dry month — only 1 measurable rain days on average. Comfortable conditions all day, but morning consistently delivers the best combination of cool air and clear skies.
Avg high / low
82° / 65°F
Humidity
68%
Rain days
1/mo
Wind
14 mph
What August feels like in Lisbon
Sunrise
06:51
Mid-month average
Sunset
20:29
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Lisbon in August
The kit for August in Lisbon: shorts and a short-sleeve are the standard kit.
August vs the surrounding months
vs July
+1° avg high
-1 rain days
Lisbon in July →
August
82°F avg high
1 rain days
Best: morning
vs September
+4° avg high
-5 rain days
Lisbon in September →
Frequently Asked Questions
What is the best time of day to run in Lisbon in August?+
Morning. Comfortable conditions all day, but morning consistently delivers the best combination of cool air and clear skies.
What's the average temperature in Lisbon in August?+
Average high 82°F, average low 65°F.
How does August compare to surrounding months in Lisbon?+
Compared to July (avg high 81°F), August is warmer. Compared to September (avg high 78°F), August is warmer.
Does it rain often in Lisbon in August?+
Expect about 1 measurable rain days in August, on average.