Cobán weather in September

In September, Cobán sees average daytime highs of 26°C and overnight lows near 18°C, with 417 mm of rain across 29.3 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels muggy.

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 Cobán's 11th-clearest and 12th-windiest month. For the whole year in context, see Cobán's year-round climate.

Daytime high: 26°; 5th warmest
Overnight low: 18°; 11th coldest
Rainfall: 417 mm; 29.3 wet days
Daylight: 12 h 06 min; 5:53 AM – 5:58 PM
Cloud cover: 85%; 11th clearest
Wind: 4 km/h; 12th windiest
Solar energy: 5.09 kWh/m²
Travel score: 3.5; out of 10

← August Cobán year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Cobán reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	25	25	25	25	25	25
Avg low (°C)	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	25	18
26	25	18
27	25	18
28	25	18
29	25	18
30	25	18

Cobán weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	21° / 14°	168	17.5	11.2	5.5
Feb	23° / 14°	95	12.8	11.5	6.2
Mar	24° / 15°	118	12.7	11.9	6.7
Apr	26° / 17°	138	15.4	12.3	5.8
May	27° / 18°	253	23.9	12.7	4.4
Jun	26° / 18°	420	28.7	12.9	3.6
Jul	26° / 18°	284	28.5	12.8	3.8
Aug	26° / 18°	303	28.3	12.5	3.8
Sep	26° / 18°	417	29.3	12.1	3.5
Oct	24° / 17°	370	27	11.6	4.1
Nov	23° / 16°	262	21	11.3	4.8
Dec	22° / 15°	167	18	11.1	5.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 90%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	11	11	11	10	10	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
Cloudier (%)	89	89	89	90	90	90	90	90	90	90	90	90	90	90	91	91	91	91	91	91	91	91	91	91	91	91	91	91	91	91

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	9	91
30	9	91

Chance of precipitation in September

Any precipitation

Cobán gets around 417 mm of rain over 29.3 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 97% and peaks near 98% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	95	95	95	96	96	96	96	97	97	97	97	97	97	98	98	98	98	98	98	98	98	98	98	98	97	97	97	96	96	95

	Rain chance (%)
1	95
2	95
3	95
4	96
5	96
6	96
7	96
8	97
9	97
10	97
11	97
12	97
13	97
14	98
15	98
16	98
17	98
18	98
19	98
20	98
21	98
22	98
23	98
24	98
25	97
26	97
27	97
28	96
29	96
30	95

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1
Humid (%)	22	21	21	21	20	20	20	20	19	19	19	19	19	18	18	18	17	17	16	16	15	15	15	16	16	17	17	18	19	20
Muggy (%)	78	79	79	79	80	80	80	80	81	81	81	81	81	82	82	82	83	83	84	84	85	85	85	84	84	83	82	81	80	79

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	22	78
2	0	21	79
3	0	21	79
4	0	21	79
5	0	20	80
6	0	20	80
7	0	20	80
8	0	20	80
9	0	19	81
10	0	19	81
11	0	19	81
12	0	19	81
13	0	19	81
14	0	18	82
15	0	18	82
16	0	18	82
17	0	17	83
18	0	17	83
19	0	16	84
20	0	16	84
21	0	15	85
22	0	15	85
23	0	15	85
24	0	16	84
25	0	16	84
26	0	17	83
27	1	17	82
28	1	18	81
29	1	19	80
30	1	20	79

Wind in September

Winds average 4 km/h in September, the calmest month.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm

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 5:52 AM to 5:54 AM, and sunset from 6:10 PM to 5:47 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.3	12.3	12.3	12.3	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.9
Sunrise (AM)	5:52	5:52	5:52	5:52	5:52	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:54	5:54	5:54	5:54	5:54	5:54	5:54	5:54	5:54	5:54	5:54
Sunset (PM)	6:10	6:10	6:09	6:08	6:07	6:06	6:06	6:05	6:04	6:03	6:02	6:02	6:01	6:00	5:59	5:58	5:58	5:57	5:56	5:55	5:54	5:53	5:53	5:52	5:51	5:50	5:49	5:49	5:48	5:47

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	5:52	6:10
2	12.3	5:52	6:10
3	12.3	5:52	6:09
4	12.3	5:52	6:08
5	12.2	5:52	6:07
6	12.2	5:53	6:06
7	12.2	5:53	6:06
8	12.2	5:53	6:05
9	12.2	5:53	6:04
10	12.2	5:53	6:03
11	12.2	5:53	6:02
12	12.1	5:53	6:02
13	12.1	5:53	6:01
14	12.1	5:53	6:00
15	12.1	5:53	5:59
16	12.1	5:53	5:58
17	12.1	5:53	5:58
18	12.1	5:53	5:57
19	12.0	5:53	5:56
20	12.0	5:54	5:55
21	12.0	5:54	5:54
22	12.0	5:54	5:53
23	12.0	5:54	5:53
24	12.0	5:54	5:52
25	12.0	5:54	5:51
26	11.9	5:54	5:50
27	11.9	5:54	5:49
28	11.9	5:54	5:49
29	11.9	5:54	5:48
30	11.9	5:54	5:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.09 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 6.23 kWh/m² in April across the year — September's 5.09 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.5	5.5	5.5	5.5	5.5	5.5	5.4	5.4	5.4	5.3	5.3	5.3	5.2	5.2	5.2	5.1	5.1	5.0	5.0	4.9	4.9	4.8	4.8	4.8	4.7	4.7	4.7	4.6	4.6	4.6
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.5	Bright
2	5.5	Bright
3	5.5	Bright
4	5.5	Bright
5	5.5	Bright
6	5.5	Bright
7	5.4	Bright
8	5.4	Bright
9	5.4	Bright
10	5.3	Bright
11	5.3	Bright
12	5.3	Bright
13	5.2	Bright
14	5.2	Bright
15	5.2	Bright
16	5.1	Bright
17	5.1	Bright
18	5.0	Bright
19	5.0	Bright
20	4.9	Bright
21	4.9	Bright
22	4.8	Bright
23	4.8	Bright
24	4.8	Bright
25	4.7	Bright
26	4.7	Bright
27	4.7	Bright
28	4.6	Bright
29	4.6	Bright
30	4.6	Bright

Planning a trip in September

Is September a good time to visit Cobán?

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

3.5

Sightseeing

12th-best month of the year

3.4

Beach & pool

12th-best month of the year

September is a weaker month for outdoor sightseeing in Cobán.

What to pack for Cobán in September

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

In September, Cobán sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 29 days see rain.

rain gearlight clothessun protection

UV index in Cobán in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cobán peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	9	13	13	14	11	13	12	13	13	11	9	9
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	13	Extreme
Mar	13	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	13	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	11	Extreme
Nov	9	Very high
Dec	9	Very high

Air quality in Cobán 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 Cobán is worst in May — around 71 µg/m³ PM2.5 (unhealthy), about 4.8× the cleanest month (January, 15 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	15	16	20	54	71	29	25	21	20	18	15	15
Level	Moderate	Moderate	Moderate	Poor	Unhealthy	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	16	Moderate
Mar	20	Moderate
Apr	54	Poor
May	71	Unhealthy
Jun	29	Moderate
Jul	25	Moderate
Aug	21	Moderate
Sep	20	Moderate
Oct	18	Moderate
Nov	15	Moderate
Dec	15	Moderate

Location & terrain

Where is Cobán?

Cobán sits at 15.5°N, 90.4°W, 1,326 m above sea level, in Guatemala. The nearest listed city is San Pedro Carchá, 7.0 km away.

Topography around Cobán

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

Within 3 km, the terrain around Cobán has only modest variations in elevation — a maximum elevation change of 220 m around an average of 1,355 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,944 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,987 m.

The land around Cobán is covered by trees (62%) and artificial surfaces (22%) within 3 km, trees (83%) within 16 km, and trees (75%) within 80 km.

3 km

220 m

trees 62%

16 km

1,944 m

trees 83%

80 km

2,987 m

trees 75%

treesshrubsgrasslandcroplandartificial surfaces

← August Cobán year-round climate October →Best places to visit in September

September weather nearby: San Pedro Carchá 7.0 km · San Cristóbal Verapaz 16 km · Chisec 39 km · Salamá 41 km · Rabinal 45 km · Guastatoya 76 km · San Pedro Ayampuc 77 km · Sanarate 78 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

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 Cobán (15.4703°, -90.3745°, elevation 1,326 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).

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	25	18
26	25	18
27	25	18
28	25	18
29	25	18
30	25	18

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	9	91
30	9	91

	Rain chance (%)
1	95
2	95
3	95
4	96
5	96
6	96
7	96
8	97
9	97
10	97
11	97
12	97
13	97
14	98
15	98
16	98
17	98
18	98
19	98
20	98
21	98
22	98
23	98
24	98
25	97
26	97
27	97
28	96
29	96
30	95

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	22	78
2	0	21	79
3	0	21	79
4	0	21	79
5	0	20	80
6	0	20	80
7	0	20	80
8	0	20	80
9	0	19	81
10	0	19	81
11	0	19	81
12	0	19	81
13	0	19	81
14	0	18	82
15	0	18	82
16	0	18	82
17	0	17	83
18	0	17	83
19	0	16	84
20	0	16	84
21	0	15	85
22	0	15	85
23	0	15	85
24	0	16	84
25	0	16	84
26	0	17	83
27	1	17	82
28	1	18	81
29	1	19	80
30	1	20	79

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	25	18
26	25	18
27	25	18
28	25	18
29	25	18
30	25	18

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	9	91
30	9	91

	Rain chance (%)
1	95
2	95
3	95
4	96
5	96
6	96
7	96
8	97
9	97
10	97
11	97
12	97
13	97
14	98
15	98
16	98
17	98
18	98
19	98
20	98
21	98
22	98
23	98
24	98
25	97
26	97
27	97
28	96
29	96
30	95

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	22	78
2	0	21	79
3	0	21	79
4	0	21	79
5	0	20	80
6	0	20	80
7	0	20	80
8	0	20	80
9	0	19	81
10	0	19	81
11	0	19	81
12	0	19	81
13	0	19	81
14	0	18	82
15	0	18	82
16	0	18	82
17	0	17	83
18	0	17	83
19	0	16	84
20	0	16	84
21	0	15	85
22	0	15	85
23	0	15	85
24	0	16	84
25	0	16	84
26	0	17	83
27	1	17	82
28	1	18	81
29	1	19	80
30	1	20	79

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	25	18
26	25	18
27	25	18
28	25	18
29	25	18
30	25	18

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	10	90
14	10	90
15	9	91
16	9	91
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	9	91
29	9	91
30	9	91

	Rain chance (%)
1	95
2	95
3	95
4	96
5	96
6	96
7	96
8	97
9	97
10	97
11	97
12	97
13	97
14	98
15	98
16	98
17	98
18	98
19	98
20	98
21	98
22	98
23	98
24	98
25	97
26	97
27	97
28	96
29	96
30	95

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	22	78
2	0	21	79
3	0	21	79
4	0	21	79
5	0	20	80
6	0	20	80
7	0	20	80
8	0	20	80
9	0	19	81
10	0	19	81
11	0	19	81
12	0	19	81
13	0	19	81
14	0	18	82
15	0	18	82
16	0	18	82
17	0	17	83
18	0	17	83
19	0	16	84
20	0	16	84
21	0	15	85
22	0	15	85
23	0	15	85
24	0	16	84
25	0	16	84
26	0	17	83
27	1	17	82
28	1	18	81
29	1	19	80
30	1	20	79