Valle de Bravo weather in September

In September, Valle de Bravo sees average daytime highs of 23°C and overnight lows near 14°C, with 373 mm of rain across 29.1 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 3% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Valle de Bravo's 12th-clearest and 9th-windiest month. For the whole year in context, see Valle de Bravo's year-round climate.

Daytime high
23°
9th warmest
Overnight low
14°
9th coldest
Rainfall
373 mm
29.1 wet days
Daylight
12 h 06 min
6:32 AM – 6:38 PM
Cloud cover
81%
12th clearest
Wind
5 km/h
9th windiest
Solar energy
4.98 kWh/m²
Travel score
3.7
out of 10

Valle de Bravo is municipal seat of Valle de Bravo, State of Mexico, Mexico.

Founded
1530

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical September day in Valle de Bravo reaches about 23°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52314
62314
72314
82314
92314
102314
112314
122314
132314
142314
152314
162314
172314
182314
192314
202314
212314
222314
232313
242313
252313
262313
272313
282313
292313
302313

Valle de Bravo weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 152.3118.4
Feb24° / 101.611.38.9
Mar26° / 10°101.611.98.6
Apr28° / 12°82.112.47.9
May28° / 14°5610.712.96.3
Jun25° / 14°29925.413.14.3
Jul23° / 14°39030.6133.6
Aug23° / 14°40830.512.73.6
Sep23° / 14°37329.112.13.7
Oct23° / 12°15522.311.65.0
Nov23° / 10°327.611.17.6
Dec22° / 92.110.98.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11189
21189
31189
41189
51189
61189
71189
81288
91288
101288
111387
121387
131486
141486
151486
161585
171585
181585
191585
201585
211585
221684
231684
241783
251783
261882
271981
282080
292080
302278

Chance of precipitation in September

Any precipitation

Valle de Bravo gets around 373 mm of rain over 29.1 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 96% and peaks near 99% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
199
298
398
498
598
698
798
898
998
1098
1197
1297
1397
1497
1597
1697
1797
1897
1997
2097
2197
2296
2396
2495
2594
2694
2793
2893
2992
3091

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 76% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
117524
217524
317524
417623
527523
627523
727622
827622
927622
1027622
1127721
1227721
1327721
1427721
1527721
1627721
1727721
1827721
1927721
2037621
2137621
2247521
2357520
2457520
2567519
2677518
2787517
2887517
2997516
30107515

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 6:29 AM to 6:34 AM, and sunset from 6:52 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:296:52
212.46:296:51
312.36:296:50
412.36:296:49
512.36:306:48
612.36:306:47
712.36:306:46
812.36:306:45
912.26:306:45
1012.26:306:44
1112.26:316:43
1212.26:316:42
1312.26:316:41
1412.16:316:40
1512.16:316:39
1612.16:326:38
1712.16:326:37
1812.16:326:36
1912.16:326:35
2012.06:326:34
2112.06:336:33
2212.06:336:32
2312.06:336:32
2412.06:336:31
2511.96:336:30
2611.96:346:29
2711.96:346:28
2811.96:346:27
2911.96:346:26
3011.86:346:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.98 kWh/m².

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 7.53 kWh/m² in April across the year — September's 4.98 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Valle de Bravo

In seasonPeak

In September, Valle de Bravo sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Valle de Bravo's monsoon runs June–September, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Valle de Bravo?

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

3.7
Sightseeing
10th-best month of the year
2.9
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Valle de Bravo.

What to pack for Valle de Bravo in September

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

In September, Valle de Bravo sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 29 days see rain.

rain gearlight clothessun protection

UV index in Valle de Bravo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Valle de Bravo peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 22UV 14Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun14Extreme
Jul11Extreme
Aug12Extreme
Sep11Extreme
Oct10Extreme
Nov9Very high
Dec8Very high

Air quality in Valle de Bravo 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 Valle de Bravo is worst in September — around 40 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (March, 22 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateSep 1439 µg/m³Mar 1223 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb25Moderate
Mar22Moderate
Apr37Poor
May39Poor
Jun33Moderate
Jul38Poor
Aug37Poor
Sep40Poor
Oct35Poor
Nov36Poor
Dec34Moderate
Location & terrain

Where is Valle de Bravo?

Valle de Bravo sits at 19.2°N, 100.1°W, 1,826 m above sea level, in Mexico. The nearest listed city is Tejupilco de Hidalgo, 32 km away.

Topography around Valle de Bravo

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

Within 3 km, the terrain around Valle de Bravo has significant variations in elevation — a maximum elevation change of 441 m around an average of 1,879 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,061 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,299 m.

The land around Valle de Bravo is covered by trees (51%) and water (31%) within 3 km, trees (70%) within 16 km, and trees (52%) within 80 km.

3 km
441 m
16 km
2,061 m
80 km
4,299 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Tejupilco de Hidalgo 32 km · Heróica Zitácuaro 36 km · San Antonio Acahualco 39 km · San Francisco Tlalcilalcalpan 40 km · Zinacantepec 43 km · Tuzantla 46 km · Santiago Tlacotepec 48 km · Toluca 51 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Valle de Bravo (19.195°, -100.1313°, elevation 1,826 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).