San José del Guaviare weather in September

In September, San José del Guaviare sees average daytime highs of 29°C and overnight lows near 22°C, with 179 mm of rain across 24.9 wet days and about 12 hours of daylight. It is the 7th-warmest and 9th-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 3% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is San José del Guaviare's 5th-clearest and 10th-windiest month. For the whole year in context, see San José del Guaviare's year-round climate.

Daytime high: 29°; 7th warmest
Overnight low: 22°; 4th coldest
Rainfall: 179 mm; 24.9 wet days
Daylight: 12 hours; 5:44 AM – 5:45 PM
Cloud cover: 77%; 5th clearest
Wind: 5 km/h; 10th windiest
Solar energy: 5.09 kWh/m²
Travel score: 3.3; out of 10

← August San José del Guaviare 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 29°C through the month.

A typical September day in San José del Guaviare reaches about 29°C in the afternoon and slips back to 22°C overnight — a 8°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 about 1°C warmer than August and on par with 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)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	30	30	30	30	30	30
Avg low (°C)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22

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

How September really feels in San José del Guaviare

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

heat index over the day's high

Days feeling ≤ 0°C

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 Guaviare weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 22°	63	8.7	11.9	4.4
Feb	32° / 23°	100	11.1	11.9	3.8
Mar	30° / 23°	208	21.2	12	3.4
Apr	29° / 22°	301	26.8	12.1	3.0
May	29° / 22°	323	28.9	12.1	3.1
Jun	28° / 22°	313	28.3	12.1	3.4
Jul	28° / 21°	288	28.1	12.1	3.7
Aug	29° / 21°	202	25.4	12.1	3.6
Sep	29° / 22°	179	24.9	12	3.3
Oct	30° / 22°	207	26.6	11.9	3.1
Nov	30° / 22°	207	25.7	11.9	3.1
Dec	30° / 22°	128	17.4	11.9	4.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 80%.

	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	21	21	21	21	21	21	21	21	21	21	20	20	19	19	19	19	19	19	19	19	19	19	18	18	17	17	17	16
Cloudier (%)	79	79	79	79	79	79	79	79	79	79	79	79	80	80	81	81	81	81	81	81	81	81	81	81	82	82	83	83	83	84

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

Chance of precipitation in September

Any precipitation

San José del Guaviare gets around 179 mm of rain over 24.9 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 83% and peaks near 84% 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 (%)	84	84	84	84	84	84	84	84	84	83	83	83	83	83	82	82	82	82	82	82	82	82	82	82	83	83	83	83	84	84

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

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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
Muggy (%)	1	1	1	1	1	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
Oppressive (%)	99	99	99	98	98	99	99	99	99	99	99	99	99	99	98	98	98	98	98	98	98	98	98	98	97	97	97	97	97	97
Miserable (%)	0	0	0	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3	3

	Muggy (%)	Oppressive (%)	Miserable (%)
1	1	99	0
2	1	99	0
3	1	99	0
4	1	98	1
5	1	98	1
6	0	99	1
7	0	99	1
8	0	99	1
9	0	99	1
10	0	99	1
11	0	99	1
12	0	99	1
13	0	99	1
14	0	99	1
15	0	98	2
16	0	98	2
17	0	98	2
18	0	98	2
19	0	98	2
20	0	98	2
21	0	98	2
22	0	98	2
23	0	98	2
24	0	98	2
25	0	97	3
26	0	97	3
27	0	97	3
28	0	97	3
29	0	97	3
30	0	97	3

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.

	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 hours at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over September. Sunrise moves from 5:49 AM to 5:40 AM, and sunset from 5:52 PM to 5:39 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)	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	5:49	5:49	5:48	5:48	5:48	5:47	5:47	5:47	5:47	5:46	5:46	5:46	5:45	5:45	5:45	5:44	5:44	5:44	5:44	5:43	5:43	5:43	5:42	5:42	5:42	5:42	5:41	5:41	5:41	5:40
Sunset (PM)	5:52	5:51	5:51	5:51	5:50	5:50	5:49	5:49	5:48	5:48	5:48	5:47	5:47	5:46	5:46	5:45	5:45	5:44	5:44	5:44	5:43	5:43	5:42	5:42	5:41	5:41	5:41	5:40	5:40	5:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	5:49	5:52
2	12.0	5:49	5:51
3	12.0	5:48	5:51
4	12.0	5:48	5:51
5	12.0	5:48	5:50
6	12.0	5:47	5:50
7	12.0	5:47	5:49
8	12.0	5:47	5:49
9	12.0	5:47	5:48
10	12.0	5:46	5:48
11	12.0	5:46	5:48
12	12.0	5:46	5:47
13	12.0	5:45	5:47
14	12.0	5:45	5:46
15	12.0	5:45	5:46
16	12.0	5:44	5:45
17	12.0	5:44	5:45
18	12.0	5:44	5:44
19	12.0	5:44	5:44
20	12.0	5:43	5:44
21	12.0	5:43	5:43
22	12.0	5:43	5:43
23	12.0	5:42	5:42
24	12.0	5:42	5:42
25	12.0	5:42	5:41
26	12.0	5:42	5:41
27	12.0	5:41	5:41
28	12.0	5:41	5:40
29	12.0	5:41	5:40
30	12.0	5:40	5:39

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 3.68 kWh/m² to a high of 5.45 kWh/m² in January across the year — September's 5.09 kWh/m² sits near the top of that range.

	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)	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1
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	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.0	Bright
5	5.0	Bright
6	5.0	Bright
7	5.0	Bright
8	5.0	Bright
9	5.0	Bright
10	5.0	Bright
11	5.1	Bright
12	5.1	Bright
13	5.1	Bright
14	5.1	Bright
15	5.1	Bright
16	5.1	Bright
17	5.1	Bright
18	5.1	Bright
19	5.1	Bright
20	5.1	Bright
21	5.1	Bright
22	5.1	Bright
23	5.1	Bright
24	5.1	Bright
25	5.1	Bright
26	5.1	Bright
27	5.1	Bright
28	5.1	Bright
29	5.1	Bright
30	5.1	Bright

Planning a trip in September

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

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

3.3

Sightseeing

8th-best month of the year

4.4

Beach & pool

5th-best month of the year

September is a weaker month for outdoor sightseeing in San José del Guaviare.

What to pack for San José del Guaviare in September

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

In September, San José del Guaviare sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in San José del Guaviare 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 San José del Guaviare peaks around February 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 13 at about 10 (extreme).

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)	13	14	13	11	13	12	11	10	13	12	12	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	14	Extreme
Mar	13	Extreme
Apr	11	Extreme
May	13	Extreme
Jun	12	Extreme
Jul	11	Extreme
Aug	10	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	12	Extreme
Dec	10	Extreme

Air quality in San José del Guaviare 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 José del Guaviare is worst in February — around 49 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (September, 10 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)	17	49	39	20	12	11	11	12	10	10	12	12
Level	Moderate	Poor	Poor	Moderate	Moderate	Good	Good	Good	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	17	Moderate
Feb	49	Poor
Mar	39	Poor
Apr	20	Moderate
May	12	Moderate
Jun	11	Good
Jul	11	Good
Aug	12	Good
Sep	10	Good
Oct	10	Good
Nov	12	Good
Dec	12	Good

Location & terrain

Where is San José del Guaviare?

San José del Guaviare sits at 2.6°N, 72.6°W, 302 m above sea level, in Colombia. The nearest listed city is Granada, 161 km away.

Topography around San José del Guaviare

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

Within 3 km, the terrain around San José del Guaviare has only modest variations in elevation — a maximum elevation change of 32 m around an average of 187 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 275 m; within 80 km, significant variations in elevation — a maximum elevation change of 467 m.

The land around San José del Guaviare is covered by trees (49%) and grassland (30%) within 3 km, trees (61%) and grassland (34%) within 16 km, and trees (60%) and grassland (39%) within 80 km.

3 km

32 m

trees 49%

16 km

275 m

trees 61%

80 km

467 m

trees 60%

treesgrasslandartificial surfaceswaterwetland

← August San José del Guaviare year-round climate October →Best places to visit in September

September weather nearby: Granada 161 km · San Martín 172 km · Puerto López 174 km · Acacías 201 km · Villavicencio 206 km · Restrepo 214 km · Tauramena 273 km · Fusagasugá 274 km

Colombia travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type A / B; 120 / 240 V · 60 Hz
Prices: ≈ 38% of US; price level, 2025
GDP per capita: $8,562; 2025
Happiness: 6.0 / 10; World Happiness, 2025
Safe drinking water: 74%; of population, 2024
Homicide rate: 24.9; per 100k, 2023
Road deaths: 15.4; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 480
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 San José del Guaviare (2.568°, -72.6397°, elevation 302 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	29	22
2	29	22
3	29	22
4	29	22
5	29	22
6	29	22
7	29	22
8	29	22
9	29	22
10	29	22
11	29	22
12	29	22
13	29	22
14	29	22
15	29	22
16	29	22
17	29	22
18	29	22
19	29	22
20	29	22
21	29	22
22	29	22
23	29	22
24	29	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22

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

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

	Muggy (%)	Oppressive (%)	Miserable (%)
1	1	99	0
2	1	99	0
3	1	99	0
4	1	98	1
5	1	98	1
6	0	99	1
7	0	99	1
8	0	99	1
9	0	99	1
10	0	99	1
11	0	99	1
12	0	99	1
13	0	99	1
14	0	99	1
15	0	98	2
16	0	98	2
17	0	98	2
18	0	98	2
19	0	98	2
20	0	98	2
21	0	98	2
22	0	98	2
23	0	98	2
24	0	98	2
25	0	97	3
26	0	97	3
27	0	97	3
28	0	97	3
29	0	97	3
30	0	97	3

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

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

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

	Muggy (%)	Oppressive (%)	Miserable (%)
1	1	99	0
2	1	99	0
3	1	99	0
4	1	98	1
5	1	98	1
6	0	99	1
7	0	99	1
8	0	99	1
9	0	99	1
10	0	99	1
11	0	99	1
12	0	99	1
13	0	99	1
14	0	99	1
15	0	98	2
16	0	98	2
17	0	98	2
18	0	98	2
19	0	98	2
20	0	98	2
21	0	98	2
22	0	98	2
23	0	98	2
24	0	98	2
25	0	97	3
26	0	97	3
27	0	97	3
28	0	97	3
29	0	97	3
30	0	97	3

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

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

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

	Muggy (%)	Oppressive (%)	Miserable (%)
1	1	99	0
2	1	99	0
3	1	99	0
4	1	98	1
5	1	98	1
6	0	99	1
7	0	99	1
8	0	99	1
9	0	99	1
10	0	99	1
11	0	99	1
12	0	99	1
13	0	99	1
14	0	99	1
15	0	98	2
16	0	98	2
17	0	98	2
18	0	98	2
19	0	98	2
20	0	98	2
21	0	98	2
22	0	98	2
23	0	98	2
24	0	98	2
25	0	97	3
26	0	97	3
27	0	97	3
28	0	97	3
29	0	97	3
30	0	97	3