San José del Cabo weather in September

In September, San José del Cabo sees average daytime highs of 29°C and overnight lows near 26°C, with 140 mm of rain across 10.6 wet days and about 12.1 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 50% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is San José del Cabo's 11th-clearest and 6th-windiest month. For the whole year in context, see San José del Cabo's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
26°
11th coldest
Rainfall
140 mm
10.6 wet days
Daylight
12 h 06 min
6:09 AM – 6:17 PM
Cloud cover
48%
11th clearest
Wind
12 km/h
6th windiest
Solar energy
5.89 kWh/m²
Travel score
5.4
out of 10

San José del Cabo is municipal seat of Los Cabos, State of Baja California Sur, Mexico.

Founded
1730

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 29°C through the month.

A typical September day in San José del Cabo reaches about 29°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925

How September really feels in San José del Cabo

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San José del Cabo weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 17°81.310.78.6
Feb23° / 17°80.811.28.8
Mar24° / 18°10.211.89.1
Apr25° / 19°10.112.58.9
May26° / 21°00.213.18.9
Jun28° / 23°60.613.48.6
Jul29° / 25°213.713.36.5
Aug30° / 26°739.212.85.3
Sep29° / 26°14010.612.15.4
Oct29° / 24°253.211.56.9
Nov27° / 21°181.810.98.3
Dec24° / 19°91.110.68.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25248
35347
45446
55446
65545
75644
85743
95842
105941
116040
126040
136238
146337
156436
166535
176634
186733
196733
206832
217030
227030
237129
247327
257327
267525
277624
287723
297822
307921

Chance of precipitation in September

Any precipitation

San José del Cabo gets around 140 mm of rain over 10.6 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
143
243
343
443
543
643
743
843
942
1042
1141
1240
1339
1438
1537
1636
1735
1833
1932
2031
2130
2228
2327
2426
2525
2624
2722
2821
2921
3020

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1016237
2016138
3016138
4016138
5016138
6016039
7016039
8015940
9015940
10025840
11025939
12025939
13035938
14036037
15036037
16046036
17046135
18056134
19056134
20066133
21076033
22076132
23086131
24096130
25096130
261106029
271116028
281126027
291136026
301146124

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 30 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 42 minutes over September. Sunrise moves from 6:04 AM to 6:14 AM, and sunset from 6:33 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:046:33
212.46:056:32
312.46:056:31
412.46:056:30
512.46:066:29
612.46:066:28
712.36:066:27
812.36:076:25
912.36:076:24
1012.36:076:23
1112.26:086:22
1212.26:086:21
1312.26:086:20
1412.26:096:19
1512.26:096:18
1612.16:096:17
1712.16:106:16
1812.16:106:15
1912.16:106:14
2012.06:106:13
2112.06:116:12
2212.06:116:11
2312.06:116:10
2411.96:126:09
2511.96:126:08
2611.96:126:07
2711.96:136:06
2811.96:136:05
2911.86:136:03
3011.86:146:02

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.89 kWh/m².

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 7.88 kWh/m² in May across the year — September's 5.89 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Intense
56.0Intense
66.0Bright
76.0Bright
86.0Bright
96.0Bright
106.0Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for San José del Cabo

In seasonPeak

In September, San José del Cabo sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

San José del Cabo sits in the eastern Pacific hurricane zone; the season peaks August–September.

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

Is September a good time to visit San José del Cabo?

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

5.4
Sightseeing
11th-best month of the year
7.1
Beach & pool
9th-best month of the year

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

What to pack for San José del Cabo in September

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

In September, San José del Cabo sees daytime highs around 29°C and nights near 26°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near San José del Cabo in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 29°C and coldest in March near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb22Refreshing
Mar22Refreshing
Apr22Refreshing
May24Refreshing
Jun25Warm
Jul27Warm
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov27Warm
Dec25Warm

UV index in San José del Cabo 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 San José del Cabo peaks around May 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighMay 15UV 12Dec 22UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct9Very high
Nov7High
Dec6High
Location & terrain

Where is San José del Cabo?

San José del Cabo sits at 23.1°N, 109.7°W, 34 m above sea level, in Mexico. The nearest listed city is Colonia del Sol, 28 km away.

NavolatoLicenciado Benito JuárezCosta RicaCiudad Constitución

Topography around San José del Cabo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San José del Cabo.

Within 3 km, the terrain around San José del Cabo has only modest variations in elevation — a maximum elevation change of 223 m around an average of 43 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,008 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,062 m.

The land around San José del Cabo is covered by shrubs (32%), artificial surfaces (24%) and water (22%) within 3 km, shrubs (49%) and water (38%) within 16 km, and water (58%) and shrubs (36%) within 80 km.

3 km
223 m
16 km
1,008 m
80 km
2,062 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Colonia del Sol 28 km · Cabo San Lucas 28 km · Todos Santos 69 km · La Paz 136 km · Navolato 279 km · Licenciado Benito Juárez 283 km · Costa Rica 291 km · Ciudad Constitución 297 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 San José del Cabo (23.0541°, -109.7037°, elevation 34 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).