Osuna weather in September

In September, Osuna sees average daytime highs of 29°C and overnight lows near 17°C, with 31 mm of rain across 3.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 27°C by the end. The sky is clear or mostly clear about 62% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Osuna's 4th-clearest and 11th-windiest month. For the whole year in context, see Osuna's year-round climate.

Daytime high
29°
4th warmest
Overnight low
17°
10th coldest
Rainfall
31 mm
3.5 wet days
Daylight
12 h 12 min
7:08 AM – 7:22 PM
Cloud cover
35%
4th clearest
Wind
9 km/h
11th windiest
Solar energy
5.49 kWh/m²
Travel score
6.8
out of 10

Osuna is capital of Osuna Municipality, Spain.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 27°C by the end.

A typical September day in Osuna reaches about 29°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13219
23119
33118
43118
53118
63118
73118
83018
93018
103018
113017
123017
132917
142917
152917
162917
172917
182817
192816
202816
212816
222816
232816
242716
252716
262716
272716
282715
292715
302715

How September really feels in Osuna

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Osuna weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 487.29.74.8
Feb16° / 466.610.65.5
Mar19° / 537.311.76.6
Apr21° / 10°42712.97.1
May25° / 13°305.4147.8
Jun30° / 17°71.414.56.4
Jul34° / 19°20.314.34.4
Aug33° / 20°30.713.44.5
Sep29° / 17°313.512.36.8
Oct24° / 14°556.6117.5
Nov18° / 626.9106.4
Dec15° / 677.89.55.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18812
28812
38614
48515
58515
68317
78317
88218
98119
108020
117921
127822
137822
147723
157624
167525
177525
187426
197327
207228
217129
227129
237129
247030
257030
267129
277129
287030
297030
307030

Chance of precipitation in September

Any precipitation

Osuna gets around 31 mm of rain over 3.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 16% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
14
25
35
45
55
66
76
87
97
108
119
129
1310
1411
1511
1612
1713
1813
1914
2014
2115
2215
2316
2416
2516
2616
2716
2816
2916
3015

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the comfortable band about 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12546253
22646253
32746253
42846243
52945243
63045232
73144232
83243232
93343232
103442232
113541232
123540232
133639231
143738241
153738241
163838241
173837241
183937241
193937231
203937230
214038220
224038220
234138210
244238200
254338190
264438180
274538170
284638160
294738140
304838140

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 6:55 AM to 7:20 AM, and sunset from 7:45 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:557:45
212.86:567:44
312.86:577:42
412.76:587:41
512.76:587:39
612.66:597:38
712.67:007:36
812.67:017:34
912.57:027:33
1012.57:037:31
1112.47:037:30
1212.47:047:28
1312.47:057:27
1412.37:067:25
1512.37:077:23
1612.27:087:22
1712.27:097:20
1812.27:097:19
1912.17:107:17
2012.17:117:15
2112.07:127:14
2212.07:137:12
2311.97:147:11
2411.97:157:09
2511.97:157:07
2611.87:167:06
2711.87:177:04
2811.77:187:03
2911.77:197:01
3011.77:207:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.49 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 8.01 kWh/m² in July across the year — September's 5.49 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.3Intense
46.2Intense
56.2Intense
66.1Intense
76.1Intense
86.0Intense
95.9Bright
105.9Bright
115.8Bright
125.7Bright
135.7Bright
145.6Bright
155.5Bright
165.5Bright
175.4Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.1Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.7Bright
304.7Bright
Planning a trip in September

Is September a good time to visit Osuna?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.8
Sightseeing
4th-best month of the year
8.2
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Osuna for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Osuna in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Osuna sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Osuna in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Osuna peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 17UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb2Moderate
Mar7High
Apr8Very high
May7Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep7High
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Osuna in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Osuna is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1515 µg/m³Nov 239 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr12Moderate
May10Good
Jun9Good
Jul10Good
Aug12Good
Sep11Good
Oct11Good
Nov9Good
Dec9Good
Location & terrain

Where is Osuna?

Osuna sits at 37.2°N, 5.1°W, 289 m above sea level, in Spain. The nearest listed city is Marchena, 30 km away.

Topography around Osuna

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Osuna.

Within 3 km, the terrain around Osuna has only modest variations in elevation — a maximum elevation change of 191 m around an average of 260 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 664 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,885 m.

The land around Osuna is covered by cropland (38%) and trees (33%) within 3 km, cropland (40%), trees (35%) and grassland (23%) within 16 km, and trees (40%), cropland (32%) and grassland (21%) within 80 km.

3 km
191 m
16 km
664 m
80 km
1,885 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Marchena 30 km · Morón de la Frontera 34 km · Écija 34 km · Puente-Genil 34 km · El Arahal 39 km · Palma del Río 54 km · Antequera 54 km · Carmona 55 km

Spain travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$38,627
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 540
Religion
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Osuna (37.2376°, -5.1031°, elevation 289 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).