San Benito weather in September

In September, San Benito sees average daytime highs of 32°C and overnight lows near 23°C, with 234 mm of rain across 26.2 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 31°C by the end. The sky is clear or mostly clear about 9% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is San Benito's 12th-clearest and 12th-windiest month. For the whole year in context, see San Benito's year-round climate.

Daytime high
32°
7th warmest
Overnight low
23°
8th coldest
Rainfall
234 mm
26.2 wet days
Daylight
12 h 06 min
5:51 AM – 5:57 PM
Cloud cover
76%
12th clearest
Wind
5 km/h
12th windiest
Solar energy
4.98 kWh/m²
Travel score
2.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 33°C in the first days to 31°C by the end.

A typical September day in San Benito reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273123
283123
293123
303123

How September really feels in San Benito

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
9 feel dangerously hot (≥ 39°C)
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 Benito weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°307.211.16.2
Feb31° / 20°143.511.45.3
Mar34° / 21°213.511.93.6
Apr36° / 23°365.412.42.0
May36° / 24°9912.212.81.8
Jun34° / 24°20922.7132.2
Jul33° / 23°14120.412.92.5
Aug33° / 23°18722.712.62.3
Sep32° / 23°23426.212.12.4
Oct30° / 23°17020.711.63.5
Nov29° / 21°7912.911.25.1
Dec28° / 20°448.5116.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13169
23169
33169
43070
52971
62971
72971
82971
92872
102872
112872
122773
132773
142773
152773
162674
172773
182773
192773
202575
212575
222575
232575
242575
252476
262377
272476
282476
292476
302575

Chance of precipitation in September

Any precipitation

San Benito gets around 234 mm of rain over 26.2 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 86% and peaks near 89% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
182
283
383
484
584
684
785
885
985
1085
1185
1286
1386
1486
1586
1687
1787
1888
1988
2088
2189
2289
2389
2489
2589
2688
2788
2887
2986
3085

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
125147
215148
315148
415148
515148
615148
715148
805248
905248
1005248
1105248
1205248
1305149
1405149
1505149
1605050
1705050
1805050
1904951
2004951
2104951
2204951
2305050
2405050
2505149
2615148
2715148
2815247
2925246
3025345

Wind in September

Winds average 5 km/h in September, the calmest month.

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 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 5:49 AM to 5:53 AM, and sunset from 6:09 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:496:09
212.35:496:09
312.35:506:08
412.35:506:07
512.35:506:06
612.35:506:05
712.25:506:05
812.25:506:04
912.25:506:03
1012.25:506:02
1112.25:516:01
1212.25:516:00
1312.15:515:59
1412.15:515:59
1512.15:515:58
1612.15:515:57
1712.15:515:56
1812.15:515:55
1912.05:525:54
2012.05:525:53
2112.05:525:53
2212.05:525:52
2312.05:525:51
2412.05:525:50
2511.95:525:49
2611.95:525:48
2711.95:535:47
2811.95:535:47
2911.95:535:46
3011.95:535:45

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 3.67 kWh/m² to a high of 6.18 kWh/m² in April across the year — September's 4.98 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.1Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for San Benito

In seasonPeak

In September, San Benito sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

San Benito sits in the Atlantic hurricane belt; the season peaks August–October.

San Benito's monsoon runs June–October, when most of the year's rain falls.

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

Is September a good time to visit San Benito?

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

2.4
Sightseeing
8th-best month of the year
3.9
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in San Benito.

What to pack for San Benito in September

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

In September, San Benito sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in San Benito in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (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 Benito peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highExtremeExtremeVery highApr 10UV 13Dec 17UV 8
UV index (midday)Level
Jan8Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May9Very high
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in San Benito 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 San Benito is worst in May — around 34 µg/m³ PM2.5 (moderate), about 6.0× the cleanest month (December, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1334 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar11Good
Apr32Moderate
May34Moderate
Jun26Moderate
Jul27Moderate
Aug19Moderate
Sep14Moderate
Oct10Good
Nov7Good
Dec6Good
Location & terrain

Where is San Benito?

San Benito sits at 16.9°N, 89.9°W, 135 m above sea level, in Guatemala. The nearest listed city is Flores, 2.0 km away.

SayaxchéMelchor de MencosPoptúnSan IgnacioBelmopanChisecPunta Gorda

Topography around San Benito

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

Within 3 km, the terrain around San Benito has only modest variations in elevation — a maximum elevation change of 159 m around an average of 142 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 226 m; within 80 km, large variations in elevation — a maximum elevation change of 725 m.

The land around San Benito is covered by trees (35%) and artificial surfaces (29%) within 3 km, trees (48%) and grassland (40%) within 16 km, and trees (52%) and grassland (46%) within 80 km.

3 km
159 m
16 km
226 m
80 km
725 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Flores 2.0 km · Sayaxché 52 km · Melchor de Mencos 83 km · Poptún 84 km · San Ignacio 94 km · Belmopan 128 km · Chisec 129 km · Punta Gorda 149 km

Guatemala travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
23.4
per 100k, 2023
Road deaths
22.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 510
Religion
Evangelical 46%Roman Catholic 42%none 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 San Benito (16.9168°, -89.919°, elevation 135 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). 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).