Ispaster, Spain — Weather in September 2026

Climate Overview

Ispaster, Spain in September has warm conditions, with highs averaging 20.3°C (69°F). Rain falls on about 13 days this month. Sea temperature averages 21.8°C (71°F).

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 21°C (71°F) at the start to 19°C (67°F) by month's end.

September sees fairly even rainfall, totalling about 100 mm across the month.

Expect around 10.1h of sunshine at the start of September, decreasing to 9.3h by the end.

The warmest days tend to fall around the 5th, averaging 22°C (72°F).

Compared to August, this month is about 2°C cooler with 2 more rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

20°C / 15°C

Feels Like

20°C / 14°C

Rain

13 days · 101 mm

Sunshine

9.6h / day

Humidity

79% — Humid

Wind

16 km/h

Wind Direction

NW (322°)

Gusts

34 km/h

Daylight

12.5 h

Cloud Cover

59%

Clear Sky Days

2.8

UV Index

4.9 — Moderate

Sea Temperature

22°C

Dew Point

14°C — Comfortable

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 07:51

Daylight 12.5h

Sunset 20:23

What to Expect

Daytime temperatures around 20°C (69°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

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

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	10°C / 5°C	7°C / 1°C	17days (150 mm) Wet	5.6h Fair	79% Humid	1.9 Low	Poor	View Details
February	11°C / 6°C	9°C / 2°C	13days (110 mm) Wet	7.1h Good	78% Humid	2.9 Moderate	Fair	View Details
March	12°C / 7°C	9°C / 3°C	17days (110 mm) Wet	8.7h Good	75% Muggy	4.1 Moderate	Fair	View Details
April	14°C / 8°C	12°C / 5°C	14days (91 mm) Wet	9.7h Good	76% Humid	5.4 High	Fair	View Details
May	16°C / 11°C	16°C / 9°C	15days (91 mm) Wet	10.8h Excellent	80% Humid	6.2 High	Good	View Details
June best	19°C / 14°C	20°C / 13°C	13days (93 mm) Wet	10.8h Excellent	83% Humid	6.4 High	Excellent	View Details
July best	21°C / 16°C	22°C / 16°C	11days (54 mm) Wet	11.4h Excellent	81% Humid	6.6 High	Excellent	View Details
August best	22°C / 16°C	23°C / 17°C	11days (65 mm) Wet	11h Excellent	79% Humid	5.9 High	Excellent	View Details
September best	20°C / 15°C	20°C / 14°C	13days (101 mm) Wet	9.6h Good	79% Humid	4.9 Moderate	Excellent	View Details
October	18°C / 12°C	17°C / 11°C	12days (104 mm) Wet	7.7h Good	78% Humid	3.5 Moderate	Good	View Details
November	13°C / 9°C	11°C / 6°C	17days (179 mm) Wet	6.3h Fair	78% Humid	2.1 Moderate	Poor	View Details
December	12°C / 7°C	9°C / 3°C	15days (140 mm) Wet	5.8h Fair	80% Humid	1.6 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Ispaster?

September is typically excellent for visiting Ispaster, with average highs of 20°C (69°F) and around 13 rainy days. Ispaster, Spain in September has warm conditions, with highs averaging 20.3°C (69°F). Rain falls on about 13 days this m

Does it rain a lot in Ispaster in September?

Ispaster typically sees around 13 rainy days in September with 101 mm (4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Ispaster in September?

Evenings in Ispaster during September are mild at 15°C (58°F). A light cardigan is usually enough.

What should I pack for Ispaster in September?

With highs of 20°C (69°F) and lows of 15°C (58°F) in September, we recommend: Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Ispaster in September?

The average UV index in Ispaster during September is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.

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

Ispaster gets approximately 13 hours of daylight per day in September, with around 10 hours of sunshine.

Does it snow in Ispaster in September?

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

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