Jalapa weather in September

In September, Jalapa sees average daytime highs of 26°C and overnight lows near 17°C, with 216 mm of rain across 24.9 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 1st-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 4% of the time in September, and the air most often feels humid.

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

Daytime high: 26°; 6th warmest
Overnight low: 17°; 10th coldest
Rainfall: 216 mm; 24.9 wet days
Daylight: 12 h 06 min; 5:52 AM – 5:57 PM
Cloud cover: 81%; 11th clearest
Wind: 5 km/h; 12th windiest
Solar energy: 5.16 kWh/m²
Travel score: 4.1; out of 10

← August Jalapa 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 Jalapa reaches about 26°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°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)	27	27	27	27	27	27	27	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26
Avg low (°C)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17

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

Jalapa weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	24° / 13°	6	2.1	11.2	8.5
Feb	26° / 13°	4	1.3	11.5	8.4
Mar	28° / 14°	12	3.2	11.9	7.7
Apr	29° / 16°	41	7.3	12.3	6.1
May	28° / 17°	143	17.7	12.7	4.9
Jun	26° / 17°	215	24.3	12.8	4.2
Jul	26° / 16°	114	18.7	12.8	5.2
Aug	26° / 17°	138	20.1	12.5	4.9
Sep	26° / 17°	216	24.9	12.1	4.1
Oct	25° / 16°	143	18.8	11.7	5.3
Nov	24° / 15°	32	6.1	11.3	7.5
Dec	24° / 14°	11	2.6	11.1	8.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 83%.

	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 (%)	21	21	20	19	19	19	19	19	19	19	19	18	18	18	18	17	17	17	16	15	14	14	14	13	13	13	13	13	14	14
Cloudier (%)	79	79	80	81	81	81	81	81	81	81	81	82	82	82	82	83	83	83	84	85	86	86	86	87	87	87	87	87	86	86

	Clearer (%)	Cloudier (%)
1	21	79
2	21	79
3	20	80
4	19	81
5	19	81
6	19	81
7	19	81
8	19	81
9	19	81
10	19	81
11	19	81
12	18	82
13	18	82
14	18	82
15	18	82
16	17	83
17	17	83
18	17	83
19	16	84
20	15	85
21	14	86
22	14	86
23	14	86
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	14	86
30	14	86

Chance of precipitation in September

Any precipitation

Jalapa gets around 216 mm of rain over 24.9 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 82% and peaks near 85% 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 (%)	78	79	80	81	81	81	81	81	81	81	81	81	81	81	81	81	82	82	83	83	84	84	84	84	85	84	84	84	83	82

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

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 91% of days. Sticky, muggy-or-worse air turns up on roughly 6% 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 (%)	5	5	4	4	4	3	3	3	3	3	3	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	2	2
Humid (%)	91	91	92	92	92	93	92	92	92	92	91	92	92	91	91	91	91	90	90	90	90	91	91	91	92	92	92	92	91	91
Muggy (%)	4	4	4	4	4	4	5	5	5	5	6	6	6	7	7	7	7	8	8	8	8	8	8	8	7	7	7	7	7	7

	Comfortable (%)	Humid (%)	Muggy (%)
1	5	91	4
2	5	91	4
3	4	92	4
4	4	92	4
5	4	92	4
6	3	93	4
7	3	92	5
8	3	92	5
9	3	92	5
10	3	92	5
11	3	91	6
12	2	92	6
13	2	92	6
14	2	91	7
15	2	91	7
16	2	91	7
17	2	91	7
18	2	90	8
19	2	90	8
20	2	90	8
21	2	90	8
22	1	91	8
23	1	91	8
24	1	91	8
25	1	92	7
26	1	92	7
27	1	92	7
28	1	92	7
29	2	91	7
30	2	91	7

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.

	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)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	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 5:51 AM to 5:53 AM, and sunset from 6:08 PM to 5:46 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	12.2	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)	5:51	5:51	5:51	5:51	5:51	5:51	5:51	5:51	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:52	5:53	5:53	5:53	5:53
Sunset (PM)	6:08	6:08	6:07	6:06	6:05	6:05	6:04	6:03	6:02	6:01	6:01	6:00	5:59	5:58	5:58	5:57	5:56	5:55	5:54	5:54	5:53	5:52	5:51	5:50	5:50	5:49	5:48	5:47	5:47	5:46

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	5:51	6:08
2	12.3	5:51	6:08
3	12.3	5:51	6:07
4	12.2	5:51	6:06
5	12.2	5:51	6:05
6	12.2	5:51	6:05
7	12.2	5:51	6:04
8	12.2	5:51	6:03
9	12.2	5:52	6:02
10	12.2	5:52	6:01
11	12.2	5:52	6:01
12	12.1	5:52	6:00
13	12.1	5:52	5:59
14	12.1	5:52	5:58
15	12.1	5:52	5:58
16	12.1	5:52	5:57
17	12.1	5:52	5:56
18	12.1	5:52	5:55
19	12.0	5:52	5:54
20	12.0	5:52	5:54
21	12.0	5:52	5:53
22	12.0	5:52	5:52
23	12.0	5:52	5:51
24	12.0	5:52	5:50
25	12.0	5:52	5:50
26	11.9	5:52	5:49
27	11.9	5:53	5:48
28	11.9	5:53	5:47
29	11.9	5:53	5:47
30	11.9	5:53	5:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.16 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.23 kWh/m² in April across the year — September's 5.16 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)	5.6	5.6	5.6	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	4.9	4.8	4.8	4.8	4.7	4.7	4.7
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	5.6	Bright
2	5.6	Bright
3	5.6	Bright
4	5.5	Bright
5	5.5	Bright
6	5.5	Bright
7	5.5	Bright
8	5.5	Bright
9	5.4	Bright
10	5.4	Bright
11	5.4	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.1	Bright
19	5.1	Bright
20	5.0	Bright
21	5.0	Bright
22	4.9	Bright
23	4.9	Bright
24	4.9	Bright
25	4.8	Bright
26	4.8	Bright
27	4.8	Bright
28	4.7	Bright
29	4.7	Bright
30	4.7	Bright

Planning a trip in September

Hazard calendar for Jalapa

In seasonPeak

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

Jalapa's monsoon runs May–October, 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 Jalapa?

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

4.1

Sightseeing

12th-best month of the year

4.1

Beach & pool

12th-best month of the year

September is a reasonable time to visit Jalapa for sightseeing.

What to pack for Jalapa in September

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

In September, Jalapa sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 25 days see rain.

rain gearlight clothessun protection

UV index in Jalapa 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 Jalapa peaks around April 12 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)	10	13	14	14	13	13	13	13	13	12	10	9
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	10	Very high
Feb	13	Extreme
Mar	14	Extreme
Apr	14	Extreme
May	13	Extreme
Jun	13	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	10	Very high
Dec	9	Very high

Air quality in Jalapa 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 Jalapa is worst in April — around 55 µg/m³ PM2.5 (unhealthy), about 3.0× the cleanest month (November, 18 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)	19	20	25	55	39	24	23	21	21	20	18	18
Level	Moderate	Moderate	Moderate	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	19	Moderate
Feb	20	Moderate
Mar	25	Moderate
Apr	55	Unhealthy
May	39	Poor
Jun	24	Moderate
Jul	23	Moderate
Aug	21	Moderate
Sep	21	Moderate
Oct	20	Moderate
Nov	18	Moderate
Dec	18	Moderate

Location & terrain

Where is Jalapa?

Jalapa sits at 14.6°N, 90.0°W, 1,360 m above sea level, in Guatemala. The nearest listed city is Guastatoya, 26 km away.

Topography around Jalapa

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

Within 3 km, the terrain around Jalapa has significant variations in elevation — a maximum elevation change of 316 m around an average of 1,406 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,831 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,975 m.

The land around Jalapa is covered by grassland (54%) and artificial surfaces (21%) within 3 km, trees (49%) and grassland (31%) within 16 km, and trees (59%) and grassland (21%) within 80 km.

3 km

316 m

grassland 54%

16 km

1,831 m

trees 49%

80 km

2,975 m

trees 59%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

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

September weather nearby: Guastatoya 26 km · Sanarate 28 km · San Luis Jilotepeque 29 km · Palencia 40 km · Jutiapa 41 km · Asunción Mita 45 km · San José Pinula 46 km · Chiquimula 51 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 Jalapa (14.6354°, -89.9911°, elevation 1,360 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	27	17
2	27	17
3	27	17
4	27	17
5	27	17
6	27	17
7	27	17
8	26	17
9	26	17
10	26	17
11	26	17
12	26	17
13	26	17
14	26	17
15	26	17
16	26	17
17	26	17
18	26	17
19	26	17
20	26	17
21	26	17
22	26	17
23	26	17
24	26	17
25	26	17
26	26	17
27	26	17
28	26	17
29	26	17
30	26	17

	Clearer (%)	Cloudier (%)
1	21	79
2	21	79
3	20	80
4	19	81
5	19	81
6	19	81
7	19	81
8	19	81
9	19	81
10	19	81
11	19	81
12	18	82
13	18	82
14	18	82
15	18	82
16	17	83
17	17	83
18	17	83
19	16	84
20	15	85
21	14	86
22	14	86
23	14	86
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	14	86
30	14	86

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	5	91	4
2	5	91	4
3	4	92	4
4	4	92	4
5	4	92	4
6	3	93	4
7	3	92	5
8	3	92	5
9	3	92	5
10	3	92	5
11	3	91	6
12	2	92	6
13	2	92	6
14	2	91	7
15	2	91	7
16	2	91	7
17	2	91	7
18	2	90	8
19	2	90	8
20	2	90	8
21	2	90	8
22	1	91	8
23	1	91	8
24	1	91	8
25	1	92	7
26	1	92	7
27	1	92	7
28	1	92	7
29	2	91	7
30	2	91	7

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

	Clearer (%)	Cloudier (%)
1	21	79
2	21	79
3	20	80
4	19	81
5	19	81
6	19	81
7	19	81
8	19	81
9	19	81
10	19	81
11	19	81
12	18	82
13	18	82
14	18	82
15	18	82
16	17	83
17	17	83
18	17	83
19	16	84
20	15	85
21	14	86
22	14	86
23	14	86
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	14	86
30	14	86

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	5	91	4
2	5	91	4
3	4	92	4
4	4	92	4
5	4	92	4
6	3	93	4
7	3	92	5
8	3	92	5
9	3	92	5
10	3	92	5
11	3	91	6
12	2	92	6
13	2	92	6
14	2	91	7
15	2	91	7
16	2	91	7
17	2	91	7
18	2	90	8
19	2	90	8
20	2	90	8
21	2	90	8
22	1	91	8
23	1	91	8
24	1	91	8
25	1	92	7
26	1	92	7
27	1	92	7
28	1	92	7
29	2	91	7
30	2	91	7

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

	Clearer (%)	Cloudier (%)
1	21	79
2	21	79
3	20	80
4	19	81
5	19	81
6	19	81
7	19	81
8	19	81
9	19	81
10	19	81
11	19	81
12	18	82
13	18	82
14	18	82
15	18	82
16	17	83
17	17	83
18	17	83
19	16	84
20	15	85
21	14	86
22	14	86
23	14	86
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	14	86
30	14	86

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	5	91	4
2	5	91	4
3	4	92	4
4	4	92	4
5	4	92	4
6	3	93	4
7	3	92	5
8	3	92	5
9	3	92	5
10	3	92	5
11	3	91	6
12	2	92	6
13	2	92	6
14	2	91	7
15	2	91	7
16	2	91	7
17	2	91	7
18	2	90	8
19	2	90	8
20	2	90	8
21	2	90	8
22	1	91	8
23	1	91	8
24	1	91	8
25	1	92	7
26	1	92	7
27	1	92	7
28	1	92	7
29	2	91	7
30	2	91	7