Mérida weather in September

In September, Mérida sees average daytime highs of 29°C and overnight lows near 16°C, with 24 mm of rain across 4 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-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 59% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Mérida's 4th-clearest and 12th-windiest month. For the whole year in context, see Mérida's year-round climate.

Daytime high
29°
4th warmest
Overnight low
16°
9th coldest
Rainfall
24 mm
4 wet days
Daylight
12 h 12 min
7:12 AM – 7:27 PM
Cloud cover
36%
4th clearest
Wind
8 km/h
12th windiest
Solar energy
5.39 kWh/m²
Travel score
6.6
out of 10

Mérida is city in Extremadura, Spain.

Air quality
Excellent
PM10 14.5 µg/m³ · 2019

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 Mérida reaches about 29°C in the afternoon and slips back to 16°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 34°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13218
23218
33118
43118
53118
63118
73118
83117
93017
103017
113017
123017
132917
142917
152917
162916
172916
182816
192816
202816
212816
222816
232716
242715
252715
262715
272715
282715
292615
302615

How September really feels in Mérida

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.

Mérida weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 518.19.63.8
Feb15° / 456.310.54.9
Mar18° / 457.211.76.4
Apr21° / 10°457.6136.8
May25° / 13°336.514.17.5
Jun30° / 17°112.214.76.2
Jul34° / 19°30.714.44.2
Aug33° / 19°51.113.54.4
Sep29° / 16°24412.36.6
Oct23° / 13°657.5117.2
Nov17° / 627.79.95.7
Dec13° / 627.89.34.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18911
28812
38812
48713
58614
68515
78515
88317
98218
108020
118020
127822
137723
147624
157426
167327
177228
187129
197030
206931
216733
226733
236733
246733
256634
266634
276535
286634
296634
306535

Chance of precipitation in September

Any precipitation

Mérida gets around 24 mm of rain over 4 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 13% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
15
25
36
46
56
67
78
89
99
1010
1111
1212
1313
1414
1515
1616
1716
1817
1917
2017
2118
2218
2318
2418
2517
2617
2716
2816
2916
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 69% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
166304
266304
367294
467294
568284
668284
769274
868275
969265
1069265
1169265
1269256
1369256
1469256
1569247
1669247
1769247
1869247
1969238
2069238
2169238
2269238
2368239
2468239
2568239
2669229
2770228
2871218
2971218
3071218

Wind in September

Winds average 8 km/h in September, the calmest month.

Across September, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:58 AM to 7:25 AM, and sunset from 7:52 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:587:52
212.86:597:50
312.87:007:49
412.87:017:47
512.77:027:45
612.77:037:44
712.67:047:42
812.67:057:40
912.67:067:39
1012.57:077:37
1112.57:087:36
1212.47:097:34
1312.47:097:32
1412.37:107:31
1512.37:117:29
1612.27:127:27
1712.27:137:26
1812.27:147:24
1912.17:157:22
2012.17:167:20
2112.07:177:19
2212.07:187:17
2311.97:197:15
2411.97:207:14
2511.97:217:12
2611.87:227:11
2711.87:237:09
2811.77:237:07
2911.77:247:06
3011.67:257:04

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.39 kWh/m².

For context, solar energy here swings from a low near 1.95 kWh/m² to a high of 7.89 kWh/m² in July across the year — September's 5.39 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.1Intense
66.0Intense
76.0Bright
85.9Bright
95.8Bright
105.8Bright
115.7Bright
125.6Bright
135.6Bright
145.5Bright
155.4Bright
165.4Bright
175.3Bright
185.2Bright
195.2Bright
205.1Bright
215.0Bright
225.0Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.6Bright
304.6Bright
Planning a trip in September

Is September a good time to visit Mérida?

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

6.6
Sightseeing
4th-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for Mérida in September

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

In September, Mérida sees daytime highs around 29°C and nights near 16°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Mérida in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mérida peaks around July 14 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 14UV 10Dec 17UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr8Very high
May7High
Jun9Very high
Jul10Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Mérida?

Mérida sits at 38.9°N, 6.3°W, 223 m above sea level, in Spain. The nearest listed city is Montijo, 24 km away.

Topography around Mérida

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

Within 3 km, the terrain around Mérida has only modest variations in elevation — a maximum elevation change of 107 m around an average of 232 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 413 m; within 80 km, large variations in elevation — a maximum elevation change of 848 m.

The land around Mérida is covered by grassland (35%), artificial surfaces (27%) and cropland (20%) within 3 km, grassland (42%), cropland (32%) and trees (20%) within 16 km, and grassland (52%) and cropland (28%) within 80 km.

3 km
107 m
16 km
413 m
80 km
848 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Montijo 24 km · Almendralejo 27 km · Don Benito 42 km · Villanueva de la Serena 48 km · Badajoz 55 km · Zafra 55 km · Cáceres 62 km · Portalegre 103 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 Mérida (38.918°, -6.3429°, elevation 223 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).