9.2 /10
Excellent

May is an excellent month in Chalaco

Climate Overview

Chalaco, Peru in May has warm conditions, with highs averaging 28°C (82°F). Rain is rare, falling on about 1 days this month. Sea temperature averages 21.1°C (70°F).

This month falls at the end of Autumn.

Temperatures remain fairly steady throughout May, with daily highs around 28°C (82°F).

Rainfall is heaviest during the first third of the month, while the last third tends to be drier.

The warmest days tend to fall around the 1th, averaging 28.8°C (84°F).

Compared to April, this month is about 1°C cooler with 4 fewer rainy days.

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Monthly May Averages

Temperature
28°C / 20°C
Feels Like
30°C / 21°C
Rain
1 days · 5 mm
Sunshine
10.7h / day
Humidity
73% — Humid
Wind
21 km/h
Wind Direction
S (176°)
Gusts
38 km/h
Daylight
11.9 h
Cloud Cover
47%
Clear Sky Days
3.4
UV Index
8.2 — Very High
Sea Temperature
21°C
Dew Point
19°C — Humid
Moon Phase
Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

36°C 32°C 28°C 24°C 20°C 16°C 12°C 151015202531
HighLow

Daily Precipitation

0 mm 1 mm 2 mm 3 mm 4 mm 151015202531
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202531
Sunshine

Daily Wind Speed

0 6 12 18 24 30 151015202531
Wind Speed
Sun Position
Sunrise 06:25
Daylight 11.9h
Sunset 18:17

What to Expect

Daytime temperatures around 28°C (82°F) are ideal for full-day outdoor exploration.

Rain is uncommon in this month, so most days stay dry from morning through evening.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

January
Good
Temp
30°C / 22°C
Feels Like
32°C / 24°C
Rain
3days (11 mm) Excellent
Sun
10.8h Excellent
Humidity
71% Muggy
UV
9.2 Very High
February
Fair
Temp
31°C / 23°C
Feels Like
34°C / 26°C
Rain
5days (32 mm) Good
Sun
10.5h Excellent
Humidity
71% Muggy
UV
9.7 Very High
March
Fair
Temp
30°C / 23°C
Feels Like
34°C / 26°C
Rain
7days (74 mm) Good
Sun
10h Excellent
Humidity
71% Muggy
UV
9.4 Very High
April
Good
Temp
29°C / 22°C
Feels Like
33°C / 24°C
Rain
5days (33 mm) Good
Sun
10.5h Excellent
Humidity
72% Muggy
UV
8.9 Very High
May best
Excellent
Temp
28°C / 20°C
Feels Like
30°C / 21°C
Rain
1days (5 mm) Excellent
Sun
10.7h Excellent
Humidity
73% Muggy
UV
8.2 Very High
June best
Excellent
Temp
26°C / 19°C
Feels Like
28°C / 19°C
Rain
1days (3 mm) Excellent
Sun
10.6h Excellent
Humidity
74% Muggy
UV
7.7 Very High
July best
Excellent
Temp
25°C / 18°C
Feels Like
27°C / 18°C
Rain
0days (1 mm) Excellent
Sun
10.6h Excellent
Humidity
75% Muggy
UV
8 Very High
August best
Excellent
Temp
25°C / 17°C
Feels Like
27°C / 17°C
Rain
1days (1 mm) Excellent
Sun
10.6h Excellent
Humidity
74% Muggy
UV
8.6 Very High
September best
Excellent
Temp
26°C / 17°C
Feels Like
27°C / 17°C
Rain
0days (1 mm) Excellent
Sun
10.7h Excellent
Humidity
73% Muggy
UV
9.3 Very High
October
Excellent
Temp
26°C / 18°C
Feels Like
28°C / 18°C
Rain
1days (4 mm) Excellent
Sun
10.7h Excellent
Humidity
73% Muggy
UV
9.4 Very High
November
Excellent
Temp
27°C / 18°C
Feels Like
28°C / 19°C
Rain
2days (7 mm) Excellent
Sun
10.8h Excellent
Humidity
74% Muggy
UV
9.3 Very High
December
Excellent
Temp
28°C / 20°C
Feels Like
30°C / 21°C
Rain
3days (12 mm) Excellent
Sun
10.9h Excellent
Humidity
73% Muggy
UV
9.1 Very High
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

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

Packing List

Breathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

May is typically excellent for visiting Chalaco, with average highs of 28°C (82°F) and around 1 rainy days. Chalaco, Peru in May has warm conditions, with highs averaging 28°C (82°F). Rain is rare, falling on about 1 days this m
Chalaco typically sees around 1 rainy days in May with 5 mm (0.2 in) of total rainfall. An umbrella should suffice.
Nights stay pleasantly warm in Chalaco during May, around 20°C (68°F). Light evening wear is sufficient.
With highs of 28°C (82°F) and lows of 20°C (68°F) in May, we recommend: Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, May offers some of the best weather conditions in Chalaco with comfortable temperatures and lower chances of rain.
The average UV index in Chalaco during May is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.
Chalaco gets approximately 12 hours of daylight per day in May, with around 11 hours of sunshine.
Snow is uncommon in Chalaco during May based on 10-year climate averages.

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