8.5 /10
Excellent

September is an excellent month in Basauri

Climate Overview

Basauri, Spain in September has warm conditions, with highs averaging 23°C (73°F). Rain falls on about 13 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 24°C (75°F) at the start to 22°C (71°F) by month's end.

September sees fairly even rainfall, totalling about 85 mm across the month.

Expect around 9.9h of sunshine at the start of September, decreasing to 9.2h by the end.

The warmest days tend to fall around the 5th, averaging 24.9°C (77°F).

Compared to August, this month is about 2°C cooler with 3 more rainy days. Temperatures begin dropping heading into October.

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Monthly September Averages

Temperature
23°C / 15°C
Feels Like
24°C / 15°C
Rain
13 days · 85 mm
Sunshine
9.6h / day
Humidity
80% — Very Humid
Wind
16 km/h
Wind Direction
NNW (338°)
Gusts
33 km/h
Daylight
12.5 h
Cloud Cover
60%
Clear Sky Days
2.5
UV Index
4.9 — Moderate
Dew Point
16°C — Comfortable
Moon Phase
Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

32°C 28°C 24°C 20°C 16°C 12°C 8°C 151015202530
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 8 mm 151015202530
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202530
Sunshine

Daily Wind Speed

0 5 10 15 20 25 151015202530
Wind Speed
Sun Position
Sunrise 07:52
Daylight 12.5h
Sunset 20:24

What to Expect

Daytime temperatures around 23°C (73°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

January
Poor
Temp
12°C / 6°C
Feels Like
9°C / 2°C
Rain
16days (131 mm) Wet
Sun
5.7h Fair
Humidity
81% Humid
UV
1.9 Low
Snow Days
1days
February
Fair
Temp
14°C / 6°C
Feels Like
11°C / 3°C
Rain
13days (99 mm) Wet
Sun
7.1h Good
Humidity
80% Humid
UV
2.8 Moderate
Snow Days
1days
March
Fair
Temp
15°C / 7°C
Feels Like
13°C / 5°C
Rain
17days (99 mm) Wet
Sun
8.7h Good
Humidity
77% Humid
UV
4.3 Moderate
Snow Days
1days
April
Good
Temp
17°C / 9°C
Feels Like
15°C / 7°C
Rain
14days (84 mm) Wet
Sun
9.7h Good
Humidity
78% Humid
UV
5.5 High
May
Good
Temp
19°C / 11°C
Feels Like
19°C / 10°C
Rain
14days (80 mm) Wet
Sun
10.8h Excellent
Humidity
81% Humid
UV
6.4 High
June best
Excellent
Temp
22°C / 15°C
Feels Like
24°C / 15°C
Rain
13days (89 mm) Wet
Sun
10.7h Excellent
Humidity
84% Humid
UV
6.5 High
July best
Excellent
Temp
24°C / 17°C
Feels Like
26°C / 17°C
Rain
10days (46 mm) Wet
Sun
11.3h Excellent
Humidity
82% Humid
UV
6.8 High
August best
Excellent
Temp
25°C / 17°C
Feels Like
27°C / 18°C
Rain
10days (51 mm) Wet
Sun
11.1h Excellent
Humidity
80% Humid
UV
6.1 High
September best
Excellent
Temp
23°C / 15°C
Feels Like
24°C / 15°C
Rain
13days (85 mm) Wet
Sun
9.6h Good
Humidity
80% Humid
UV
4.9 Moderate
October
Good
Temp
21°C / 13°C
Feels Like
20°C / 12°C
Rain
11days (92 mm) Wet
Sun
7.7h Good
Humidity
79% Humid
UV
3.6 Moderate
November
Fair
Temp
16°C / 9°C
Feels Like
14°C / 7°C
Rain
17days (152 mm) Wet
Sun
6.3h Fair
Humidity
80% Humid
UV
2.1 Moderate
December
Poor
Temp
14°C / 7°C
Feels Like
11°C / 4°C
Rain
15days (118 mm) Wet
Sun
5.8h Fair
Humidity
82% Humid
UV
1.7 Low
Month Temp Feels Like Rain Sun Humidity UV Status Details
January 12°C / 6°C 9°C / 2°C 16days (131 mm) Wet 5.7h Fair 81% Humid 1.9 Low Poor View Details
February 14°C / 6°C 11°C / 3°C 13days (99 mm) Wet 7.1h Good 80% Humid 2.8 Moderate Fair View Details
March 15°C / 7°C 13°C / 5°C 17days (99 mm) Wet 8.7h Good 77% Humid 4.3 Moderate Fair View Details
April 17°C / 9°C 15°C / 7°C 14days (84 mm) Wet 9.7h Good 78% Humid 5.5 High Good View Details
May 19°C / 11°C 19°C / 10°C 14days (80 mm) Wet 10.8h Excellent 81% Humid 6.4 High Good View Details
June best 22°C / 15°C 24°C / 15°C 13days (89 mm) Wet 10.7h Excellent 84% Humid 6.5 High Excellent View Details
July best 24°C / 17°C 26°C / 17°C 10days (46 mm) Wet 11.3h Excellent 82% Humid 6.8 High Excellent View Details
August best 25°C / 17°C 27°C / 18°C 10days (51 mm) Wet 11.1h Excellent 80% Humid 6.1 High Excellent View Details
September best 23°C / 15°C 24°C / 15°C 13days (85 mm) Wet 9.6h Good 80% Humid 4.9 Moderate Excellent View Details
October 21°C / 13°C 20°C / 12°C 11days (92 mm) Wet 7.7h Good 79% Humid 3.6 Moderate Good View Details
November 16°C / 9°C 14°C / 7°C 17days (152 mm) Wet 6.3h Fair 80% Humid 2.1 Moderate Fair View Details
December 14°C / 7°C 11°C / 4°C 15days (118 mm) Wet 5.8h Fair 82% Humid 1.7 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

September is typically excellent for visiting Basauri, with average highs of 23°C (73°F) and around 13 rainy days. Basauri, Spain in September has warm conditions, with highs averaging 23°C (73°F). Rain falls on about 13 days this mont
Basauri typically sees around 13 rainy days in September with 85 mm (3.3 in) of total rainfall. Pack a waterproof jacket.
Evenings in Basauri during September are mild at 15°C (59°F). A light cardigan is usually enough.
With highs of 23°C (73°F) and lows of 15°C (59°F) in September, we recommend: Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, September offers some of the best weather conditions in Basauri with comfortable temperatures and lower chances of rain.
The average UV index in Basauri during September is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Basauri gets approximately 13 hours of daylight per day in September, with around 10 hours of sunshine.
Snow is uncommon in Basauri during September based on 10-year climate averages.

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