Chalaco, Peru experiences average highs of 28°C (82°F) and lows of 20°C (68°F) throughout the year. The climate is relatively dry, with only 2 rainy days per month on average. Sunshine is abundant, averaging about 11 hours per day. Average highs have cooled by 1.0°C (1.8°F) across the available records.
Chalaco, Peru Weather & Climate 2026
Monthly climate averages for Chalaco, Peru. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
8.4/10
Best: May, June, July, August, September
UV Index
9
High
Temperature 28°C / 20°C
Feels Like 30°C / 21°C
Rainy Days 2
Rainfall 15 mm
Sunshine 11 h
Humidity 73%
Wind Speed 21 km/h
Dew Point 18°C
Hottest Month
31°C
February
Avg Low23°C
Rain5days
Coldest Month
17°C
August
Avg High25°C
Rain1days
Driest Month
0days
July
Avg High25°C
Avg Low18°C
Windiest Month
22 km/h
January (Gusts 41)
Sea Temperature
19°C – 25°C
Warmest water: February (
24.8°C
)
Worst Time to Visit
Consider avoiding February, March due to oppressive humidity.
Sun Position
Sunrise 06:31
Daylight 11.8h
Sunset 18:19
Live conditions—
Chalaco on the map · live conditions
Chalaco, Peru
- Continent
- Americas
- Country
- Peru
- City
- Chalaco
- Population
- 570
- Coordinates
- -5.41°, -80.76°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 26°C
Avg Low 18°C
Rain 1 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 29°C
Avg Low 22°C
Rain 4 days/mo
Autumn
Mar–May
Avg High 29°C
Avg Low 22°C
Rain 4 days/mo
1/3 best months
Winter
Jun–Aug
Avg High 26°C
Avg Low 18°C
Rain 1 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 30°C / 22°C . Feb: 31°C / 23°C . Mar: 30°C / 23°C . Apr: 29°C / 22°C . May: 28°C / 20°C . Jun: 26°C / 19°C . Jul: 25°C / 18°C . Aug: 25°C / 17°C . Sep: 26°C / 17°C . Oct: 26°C / 18°C . Nov: 27°C / 18°C . Dec: 28°C / 20°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 11 mm. Feb: 32 mm. Mar: 74 mm. Apr: 33 mm. May: 5 mm. Jun: 3 mm. Jul: 1 mm. Aug: 1 mm. Sep: 1 mm. Oct: 4 mm. Nov: 7 mm. Dec: 12 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 71%. Feb: 71%. Mar: 71%. Apr: 72%. May: 73%. Jun: 74%. Jul: 75%. Aug: 74%. Sep: 73%. Oct: 73%. Nov: 74%. Dec: 73%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 21 km/h . Mar: 20 km/h . Apr: 20 km/h . May: 21 km/h . Jun: 20 km/h . Jul: 20 km/h . Aug: 21 km/h . Sep: 22 km/h . Oct: 22 km/h . Nov: 21 km/h . Dec: 22 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 11h. Mar: 10h. Apr: 11h. May: 11h. Jun: 11h. Jul: 11h. Aug: 11h. Sep: 11h. Oct: 11h. Nov: 11h. Dec: 11h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 22°C . Feb: 25°C . Mar: 25°C . Apr: 23°C . May: 21°C . Jun: 21°C . Jul: 20°C . Aug: 19°C . Sep: 19°C . Oct: 19°C . Nov: 19°C . Dec: 20°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 10. Mar: UV 9. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 9. Sep: UV 9. Oct: UV 9. Nov: UV 9. Dec: UV 9.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have cooled by 1.0°C (1.8°F) across the available records. Average rainfall is trending wetter by about 10 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Mar 2025 · 31°C | Feb · 31°C |
| Coldest month | Aug 2025 · 17°C | Aug · 17°C |
| Wettest month | Apr 2025 · 59 mm | Mar · 74 mm |
| Windiest month | Sep 2025 · 23 km/h | Jan · 22 km/h |
Month-by-Month Weather Table
January
Good 
February
Fair March
Fair April
Good May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Excellent November
Excellent December
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 30°C / 22°C | 32°C / 24°C | 3days (11 mm) Excellent | 10.8h Excellent | 71% Muggy | 9.2 Very High | Good | View Details |
| February | 31°C / 23°C | 34°C / 26°C | 5days (32 mm) Good | 10.5h Excellent | 71% Muggy | 9.7 Very High | Fair | View Details |
| March | 30°C / 23°C | 34°C / 26°C | 7days (74 mm) Good | 10h Excellent | 71% Muggy | 9.4 Very High | Fair | View Details |
| April | 29°C / 22°C | 33°C / 24°C | 5days (33 mm) Good | 10.5h Excellent | 72% Muggy | 8.9 Very High | Good | View Details |
| May best | 28°C / 20°C | 30°C / 21°C | 1days (5 mm) Excellent | 10.7h Excellent | 73% Muggy | 8.2 Very High | Excellent | View Details |
| June best | 26°C / 19°C | 28°C / 19°C | 1days (3 mm) Excellent | 10.6h Excellent | 74% Muggy | 7.7 Very High | Excellent | View Details |
| July best | 25°C / 18°C | 27°C / 18°C | 0days (1 mm) Excellent | 10.6h Excellent | 75% Muggy | 8 Very High | Excellent | View Details |
| August best | 25°C / 17°C | 27°C / 17°C | 1days (1 mm) Excellent | 10.6h Excellent | 74% Muggy | 8.6 Very High | Excellent | View Details |
| September best | 26°C / 17°C | 27°C / 17°C | 0days (1 mm) Excellent | 10.7h Excellent | 73% Muggy | 9.3 Very High | Excellent | View Details |
| October | 26°C / 18°C | 28°C / 18°C | 1days (4 mm) Excellent | 10.7h Excellent | 73% Muggy | 9.4 Very High | Excellent | View Details |
| November | 27°C / 18°C | 28°C / 19°C | 2days (7 mm) Excellent | 10.8h Excellent | 74% Muggy | 9.3 Very High | Excellent | View Details |
| December | 28°C / 20°C | 30°C / 21°C | 3days (12 mm) Excellent | 10.9h Excellent | 73% Muggy | 9.1 Very High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Chalaco are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Chalaco, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Chalaco is February, with average daytime highs of 31°C (87°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Chalaco is August, with average overnight lows of 17°C (63°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Chalaco is March, averaging 74mm of precipitation across 7 rainy days. An umbrella or waterproof jacket is essential.
Chalaco receives approximately 127 sunshine hours per year. The sunniest month is December with around 11 hours. Based on climate data for Chalaco.
The least favorable months to visit Chalaco are February, March, primarily due to oppressive humidity. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Chalaco is 9, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Chalaco is 73%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in February, March, April average 24°C (75°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Chalaco are 21 km/h (13 mph). The windiest month is January with peak winds reaching 22 km/h (14 mph) (gusts up to 41 km/h / 26 mph).
Chalaco averages 2 clear-sky days per month with overall cloud cover around 59%. The clearest skies occur in July.
The annual average dew point in Chalaco is 18°C (64°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Chalaco has a Hot Desert climate, classified as BWh under the Köppen system. Arid climates have very low rainfall relative to temperature, with large swings between daytime heat and cool nights.
The 'feels like' temperature in Chalaco ranges from 21°C (70°F) to 30°C (86°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Chalaco. It earns a climate score of 9.5/10 with Excellent.
For June in Chalaco, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Comfortable walking shoes. With average highs of 26°C (79°F) and 1 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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