Cascas, Peru — Weather in September 2026

Climate Overview

Cascas, Peru in September has hot conditions, with highs reaching 29.1°C (84°F) and afternoons the warmest part of the day. Rain is rare, falling on about 2 days this month. Temperatures drop noticeably between day and night.

This month falls at the beginning of Spring.

Temperatures remain fairly steady throughout September, with daily highs around 29°C (84°F).

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

The warmest days tend to fall around the 8th, averaging 29.8°C (86°F).

Monthly September Averages

Temperature

29°C / 17°C

Feels Like

31°C / 18°C

Rain

2 days · 7 mm

Sunshine

11h / day

Humidity

63% — Moderate

Wind

10 km/h

Wind Direction

WSW (255°)

Gusts

41 km/h

Daylight

12.1 h

Cloud Cover

46%

Clear Sky Days

UV Index

9.4 — Very High

Dew Point

16°C — Comfortable

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:09

Daylight 12.1h

Sunset 18:12

What to Expect

Daytime temperatures around 29°C (84°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

2days (5 mm) Excellent

2days (4 mm) Excellent

1days (3 mm) Excellent

2days (7 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	25°C / 17°C	29°C / 19°C	13days (56 mm) Wet	9.8h Good	84% Humid	9.7 Very High	Good	View Details
February	25°C / 17°C	29°C / 19°C	20days (118 mm) Wet	9.2h Good	88% Very Muggy	9.7 Very High	Wet	View Details
March	25°C / 17°C	29°C / 19°C	25days (161 mm) Wet	8.6h Good	89% Very Muggy	9.6 Very High	Wet	View Details
April	26°C / 17°C	29°C / 19°C	16days (79 mm) Wet	9.9h Good	88% Very Muggy	9 Very High	Good	View Details
May best	27°C / 17°C	30°C / 19°C	6days (20 mm) Good	10.6h Excellent	81% Humid	8.1 Very High	Excellent	View Details
June best	27°C / 16°C	29°C / 17°C	2days (5 mm) Excellent	10.6h Excellent	71% Muggy	7.7 Very High	Excellent	View Details
July best	29°C / 16°C	30°C / 16°C	2days (4 mm) Excellent	10.8h Excellent	62% Muggy	7.9 Very High	Excellent	View Details
August best	29°C / 16°C	31°C / 17°C	1days (3 mm) Excellent	10.9h Excellent	57% Moderate	8.7 Very High	Excellent	View Details
September best	29°C / 17°C	31°C / 18°C	2days (7 mm) Excellent	11h Excellent	63% Muggy	9.4 Very High	Excellent	View Details
October	27°C / 17°C	30°C / 19°C	6days (23 mm) Good	10.9h Excellent	71% Muggy	9.7 Very High	Excellent	View Details
November	27°C / 17°C	29°C / 17°C	5days (15 mm) Good	11h Excellent	65% Muggy	9.6 Very High	Excellent	View Details
December	26°C / 17°C	29°C / 18°C	10days (41 mm) Wet	10.5h Excellent	78% Humid	9.5 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.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

Packing List

Breathable clothingSunscreen (SPF 30+)Sun hatSunglassesSandals

Frequently Asked Questions

Expand all

Is September a good time to visit Cascas?

September is typically excellent for visiting Cascas, with average highs of 29°C (84°F) and around 2 rainy days. Cascas, Peru in September has hot conditions, with highs reaching 29.1°C (84°F) and afternoons the warmest part of the d

Does it rain a lot in Cascas in September?

Cascas typically sees around 2 rainy days in September with 7 mm (0.3 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Cascas in September?

Evenings in Cascas during September are mild at 17°C (63°F). A light cardigan is usually enough.

What should I pack for Cascas in September?

With highs of 29°C (84°F) and lows of 17°C (63°F) in September, we recommend: Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. Comfortable walking shoes are essential.

Is September among the best months weather-wise in Cascas?

Yes, September offers some of the best weather conditions in Cascas with comfortable temperatures and lower chances of rain.

What is the UV index in Cascas in September?

The average UV index in Cascas during September is 9 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

How many hours of daylight are there in Cascas in September?

Cascas gets approximately 12 hours of daylight per day in September, with around 11 hours of sunshine.

Does it snow in Cascas in September?

Snow is uncommon in Cascas during September based on 10-year climate averages.

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