What's the best month to run in Lima?

July. Typical daytime Run Scores average 81 (Great), the best of the year, with temperatures around 62°F (17°C).

When is it too hot to run in Lima?

February is the toughest month: typical temperatures near 73°F (23°C) with sticky dew points around 67°F. On days like that, run in the 6–8 AM window and ease off the pace.

What time of day is best for running in Lima?

In the warm months the kindest window is typically early morning. Across the year the highest-scoring hours cluster early; the month-by-month table above lists the best window for each month.

When is the best time to run in Lima?

It depends on the day. Coastal desert with cool ocean fog (garúa). Rarely hot and rarely rains: humidity and grey skies define most of the year. Run the calculator above and it returns today's highest-scoring window for Lima: usually early morning or evening when heat and dew point are lowest. Tap any hour to see the full breakdown.

What is a good Run Score?

Scores run 0–100. 80–100 is Great (97+ earns a gold star for near-perfect conditions). 65–79 (Good) is solid. 55–64 (Fair) or 45–54 (Tough) means at least one factor (usually heat or dew point) is slowing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.

Why does dew point matter more than temperature?

Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.

How is this different from a normal weather app?

A weather app tells you the conditions. This calculator translates them into a running decision: a single score, the best hour to head out, and a concrete pace adjustment in seconds per mile, all from the same scoring engine that powers the RunWeather app.

Is the running weather calculator free?

Yes. The calculator is completely free to use, with no account required. The RunWeather app adds Strava sync, multi-day planning, and personalized scoring on top of the same model.

When should I run in Lima today?

Coastal desert with cool ocean fog (garúa). Rarely hot and rarely rains: humidity and grey skies define most of the year. Live Run Score for Lima, every hour today, from the same engine as the RunWeather app.

QR code that opens RunWeather in your phone's app store

On a computer? Scan with your phone camera to get the app.

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Works with Apple Health

The app

One check a day, done for you

When to go
Every hour gets a Run Score. On this Austin day the best was 7 am at 94.
Why it feels hard
Tap any hour: what's against you and how much slower the same effort runs.
On your home screen
Widgets and a morning alert, no app to open.

RunWeather Today in Austin at 7 am: Run Score 94, great day to run

7 am · score 94

Why this score: 57 out of 100, 6.8% slower for the same effort, temperature is the biggest drag

3 pm · 6.8% slower

Typical running conditions in Lima

Across a typical year, the best running weather in Lima lands in July, when daytime Run Scores average 81 (Great). The hardest stretch is February, with temperatures around 73°F (23°C) and sticky dew points near 67°F. The stickiest month is February (dew point 67°F). Year-round, Lima averages a 72 Run Score. Everything below is the typical pattern by month and by hour of day, scored with the same engine as the live calculator above, so you can plan the season and the time of day, not just today.

Best time to run in Lima, by season

When the kindest window falls shifts with the season. Typical Run Score and the best time of day for each.

Winter

Best early morning

Winter in Lima averages a 80 Run Score (Great); the kindest window is typically early morning, with temperatures around 17°C and pleasant dew points.

Spring

Best early morning

Spring in Lima averages a 78 Run Score (Good); the kindest window is typically early morning, with temperatures around 17°C and pleasant dew points.

Summer

Best early morning

Summer in Lima averages a 63 Run Score (Mixed); the kindest window is typically early morning, with temperatures around 22°C and sticky dew points.

Autumn

Best early morning

Autumn in Lima averages a 66 Run Score (Good); the kindest window is typically early morning, with temperatures around 21°C and noticeable dew points.

Lima running weather, month by month

Typical temperature, dew point, and Run Score for each month, plus the best window of the day. Based on 2022–2024 history.

Month	Avg temp	Dew point	Typical Run Score	Best window
January	71°F (Warm)	65°F (Sticky)	62 Fair	6–8 AM
February	73°F (Warm)	67°F (Sticky)	59 Fair	6–8 AM
March	73°F (Warm)	66°F (Sticky)	60 Fair	6–8 AM
April	70°F (Warm)	64°F (Noticeable)	64 Fair	6–8 AM
May	65°F (Warm)	60°F (Pleasant)	75 Good	6–8 AM
June	62°F (Warm)	57°F (Pleasant)	80 Great	6–9 AM
July	62°F (Warm)	56°F (Pleasant)	81 Great	6–9 AM
August	61°F (Warm)	56°F (Pleasant)	80 Great	6–9 AM
September	62°F (Warm)	56°F (Pleasant)	81 Great	6–8 AM
October	62°F (Warm)	57°F (Pleasant)	78 Good	6–8 AM
November	65°F (Warm)	59°F (Pleasant)	74 Good	6–8 AM
December	69°F (Warm)	62°F (Noticeable)	67 Good	6–8 AM

Climate data by Open-Meteo.com, from Copernicus ERA5 reanalysis, hourly 2022–2024 (CC BY 4.0). RunWeather computed the Run Scores, best windows and monthly averages from it.

Dew point is the real story in Lima

Dew point (not the thermometer) decides how hard a run feels. The muggiest month in Lima is February, when the typical dew point reaches 67°F (19°C) (sticky). At that point sweat stops evaporating efficiently, so even a moderate temperature feels brutal. Compare that with July, the easiest month, when dew points sit near 56°F and the same effort feels far lighter. The hour-by-hour scores above already fold this in.

Running in Lima, month by month

Typical conditions and the best time to run for each month of the year.

Lima in January62 Lima in February59 Lima in March60 Lima in April64 Lima in May75 Lima in June80 Lima in July81 Lima in August80 Lima in September81 Lima in October78 Lima in November74 Lima in December67

By city

Best time to run, by city

Running weather across Latin America →

What the calculator scores
Eight signals, weighted by how much each changes a run
Temperature. Performance peaks near 50–54°F. Every degree above that works your cooling system harder and slows the pace you can hold at the same effort.
Dew point. The real humidity signal. Above ~60°F dew point, sweat stops evaporating efficiently: the single biggest hidden driver of a hard summer run.
Wind. Sustained wind and gusts feed drag and thermal estimates. This public calculator uses a default route-exposure assumption because it does not know your running direction.
Heat stress. How hard heat, humidity, sun, and wind hit your body, combined into one number (wet-bulb globe temperature), the same metric race directors use to flag risk.
Solar exposure. Direct radiation on a shadeless route can feel far hotter than the air temperature. Cloud cover and sun angle are factored in.
Precipitation. Rain probability and intensity affect footing, comfort, and gear, weighted by how likely it is during your window.
Air quality. US AQI is folded in so sensitive runners get a clear signal when particulates make hard efforts a bad idea.
Pace adjustment. The output you actually use: how many seconds per mile to ease off today so your effort (not the clock) stays honest.
Enter your city. Search any city worldwide. RunWeather pulls the live local forecast: temperature, dew point, wind, sun, and air quality.
Get a 0–100 Run Score. One number that blends performance, safety, and experience (labeled Great, Good, Fair, Tough, or Poor) for the current hour.
Scrub the next 12 hours. Tap any hour to rebuild the full breakdown for that start time, or jump straight to the best window today.
Need a pace target for the heat instead? Try the heat and humidity pace calculator.
Running guides
Heat, humidity, wind, cold
Questions runners ask
8 questions
What's the best month to run in Lima?
July. Typical daytime Run Scores average 81 (Great), the best of the year, with temperatures around 62°F (17°C).
When is it too hot to run in Lima?
February is the toughest month: typical temperatures near 73°F (23°C) with sticky dew points around 67°F. On days like that, run in the 6–8 AM window and ease off the pace.
What time of day is best for running in Lima?
In the warm months the kindest window is typically early morning. Across the year the highest-scoring hours cluster early; the month-by-month table above lists the best window for each month.
When is the best time to run in Lima?
It depends on the day. Coastal desert with cool ocean fog (garúa). Rarely hot and rarely rains: humidity and grey skies define most of the year. Run the calculator above and it returns today's highest-scoring window for Lima: usually early morning or evening when heat and dew point are lowest. Tap any hour to see the full breakdown.
What is a good Run Score?
Scores run 0–100. 80–100 is Great (97+ earns a gold star for near-perfect conditions). 65–79 (Good) is solid. 55–64 (Fair) or 45–54 (Tough) means at least one factor (usually heat or dew point) is slowing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.
Why does dew point matter more than temperature?
Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.
How is this different from a normal weather app?
A weather app tells you the conditions. This calculator translates them into a running decision: a single score, the best hour to head out, and a concrete pace adjustment in seconds per mile, all from the same scoring engine that powers the RunWeather app.
Is the running weather calculator free?
Yes. The calculator is completely free to use, with no account required. The RunWeather app adds Strava sync, multi-day planning, and personalized scoring on top of the same model.
From the blog
12 posts
All running weather articles

Know your best hour before you head out.

Free on iPhone and Android. No account needed.

On a computer? Scan with your phone camera to get the app.

When should I run in Lima today?

One check a day, done for you

When to go

Why it feels hard

On your home screen

Typical running conditions in Lima

Best time to run in Lima, by season

Winter

Spring

Summer

Autumn

Lima running weather, month by month

Dew point is the real story in Lima

Running in Lima, month by month

Best time to run, by city

How the score works

What the calculator scores

Running guides

Questions runners ask

What's the best month to run in Lima?

When is it too hot to run in Lima?

What time of day is best for running in Lima?

When is the best time to run in Lima?

What is a good Run Score?

Why does dew point matter more than temperature?

How is this different from a normal weather app?

Is the running weather calculator free?

From the blog

Know your best hour before you head out.