Astrea weather in September

In September, Astrea sees average daytime highs of 32°C and overnight lows near 24°C, with 295 mm of rain across 27.4 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Astrea's 11th-clearest and 8th-windiest month. For the whole year in context, see Astrea's year-round climate.

Daytime high: 32°; 10th warmest
Overnight low: 24°; 4th coldest
Rainfall: 295 mm; 27.4 wet days
Daylight: 12 h 06 min; 5:49 AM – 5:52 PM
Cloud cover: 90%; 11th clearest
Wind: 4 km/h; 8th windiest
Solar energy: 4.96 kWh/m²
Travel score: 2.1; out of 10

← August Astrea 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 32°C through the month.

A typical September day in Astrea reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°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 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)	33	33	33	33	33	33	33	33	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32
Avg low (°C)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24

	Avg high (°C)	Avg low (°C)
1	33	24
2	33	24
3	33	24
4	33	24
5	33	24
6	33	24
7	33	24
8	33	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

How September really feels in Astrea

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 feel dangerously hot (≥ 39°C)

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.

Astrea weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	35° / 24°	24	4.9	11.5	2.7
Feb	37° / 25°	38	6.5	11.7	1.8
Mar	36° / 25°	117	15	11.9	1.8
Apr	34° / 25°	242	24.3	12.2	1.9
May	33° / 25°	338	27.5	12.4	2.1
Jun	33° / 25°	223	23.7	12.5	2.3
Jul	33° / 25°	173	21.9	12.5	2.3
Aug	33° / 24°	239	24.8	12.3	2.1
Sep	32° / 24°	295	27.4	12.1	2.1
Oct	32° / 24°	323	28.8	11.8	2.3
Nov	32° / 24°	224	23.7	11.6	2.6
Dec	33° / 24°	74	11.4	11.5	3.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 95%.

	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 (%)	6	6	6	6	6	6	6	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5
Cloudier (%)	94	94	94	94	94	94	94	95	95	95	95	95	95	96	96	96	96	96	96	96	96	96	96	96	96	96	96	96	96	95

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	6	94
6	6	94
7	6	94
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	4	96
28	4	96
29	4	96
30	5	95

Chance of precipitation in September

Any precipitation

Astrea gets around 295 mm of rain over 27.4 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 91% and peaks near 94% 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 (%)	87	88	88	88	89	89	89	90	90	90	91	91	91	91	92	92	92	92	92	93	93	93	93	93	93	93	93	93	94	94

	Rain chance (%)
1	87
2	88
3	88
4	88
5	89
6	89
7	89
8	90
9	90
10	90
11	91
12	91
13	91
14	91
15	92
16	92
17	92
18	92
19	92
20	93
21	93
22	93
23	93
24	93
25	93
26	93
27	93
28	93
29	94
30	94

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 83% 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
Oppressive (%)	12	13	13	13	14	14	15	15	15	16	16	17	17	17	17	18	18	18	18	18	19	19	19	18	18	18	18	18	18	18
Miserable (%)	88	87	87	87	86	86	85	85	85	84	84	83	83	83	83	82	82	82	82	82	81	81	81	82	82	82	82	82	82	82

	Oppressive (%)	Miserable (%)
1	12	88
2	13	87
3	13	87
4	13	87
5	14	86
6	14	86
7	15	85
8	15	85
9	15	85
10	16	84
11	16	84
12	17	83
13	17	83
14	17	83
15	17	83
16	18	82
17	18	82
18	18	82
19	18	82
20	18	82
21	19	81
22	19	81
23	19	81
24	18	82
25	18	82
26	18	82
27	18	82
28	18	82
29	18	82
30	18	82

Wind in September

Winds average 4 km/h in September.

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 12 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 18 minutes over September. Sunrise moves from 5:50 AM to 5:47 AM, and sunset from 6:01 PM to 5:43 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)	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	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	12.0	12.0	12.0	12.0	11.9	11.9	11.9
Sunrise (AM)	5:50	5:50	5:50	5:50	5:50	5:50	5:50	5:49	5:49	5:49	5:49	5:49	5:49	5:49	5:49	5:49	5:49	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:48	5:47
Sunset (PM)	6:01	6:01	6:00	5:59	5:59	5:58	5:57	5:57	5:56	5:56	5:55	5:54	5:54	5:53	5:52	5:52	5:51	5:50	5:50	5:49	5:49	5:48	5:47	5:47	5:46	5:45	5:45	5:44	5:44	5:43

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	5:50	6:01
2	12.2	5:50	6:01
3	12.2	5:50	6:00
4	12.2	5:50	5:59
5	12.1	5:50	5:59
6	12.1	5:50	5:58
7	12.1	5:50	5:57
8	12.1	5:49	5:57
9	12.1	5:49	5:56
10	12.1	5:49	5:56
11	12.1	5:49	5:55
12	12.1	5:49	5:54
13	12.1	5:49	5:54
14	12.1	5:49	5:53
15	12.1	5:49	5:52
16	12.1	5:49	5:52
17	12.0	5:49	5:51
18	12.0	5:48	5:50
19	12.0	5:48	5:50
20	12.0	5:48	5:49
21	12.0	5:48	5:49
22	12.0	5:48	5:48
23	12.0	5:48	5:47
24	12.0	5:48	5:47
25	12.0	5:48	5:46
26	12.0	5:48	5:45
27	12.0	5:48	5:45
28	11.9	5:48	5:44
29	11.9	5:48	5:44
30	11.9	5:47	5:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.96 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.13 kWh/m² in March across the year — September's 4.96 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)	5.2	5.2	5.2	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.0	5.0	5.0	5.0	5.0	5.0	4.9	4.9	4.9	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8
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	5.2	Bright
2	5.2	Bright
3	5.2	Bright
4	5.1	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.1	Bright
11	5.0	Bright
12	5.0	Bright
13	5.0	Bright
14	5.0	Bright
15	5.0	Bright
16	5.0	Bright
17	4.9	Bright
18	4.9	Bright
19	4.9	Bright
20	4.9	Bright
21	4.9	Bright
22	4.9	Bright
23	4.8	Bright
24	4.8	Bright
25	4.8	Bright
26	4.8	Bright
27	4.8	Bright
28	4.8	Bright
29	4.8	Bright
30	4.8	Bright

Planning a trip in September

Is September a good time to visit Astrea?

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

2.1

Sightseeing

7th-best month of the year

3.5

Beach & pool

12th-best month of the year

September is a weaker month for outdoor sightseeing in Astrea.

What to pack for Astrea in September

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

In September, Astrea sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Astrea 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 Astrea peaks around February 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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)	11	13	13	12	12	13	11	12	13	11	10	9
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	13	Extreme
Mar	13	Extreme
Apr	12	Extreme
May	12	Extreme
Jun	13	Extreme
Jul	11	Extreme
Aug	12	Extreme
Sep	13	Extreme
Oct	11	Extreme
Nov	10	Very high
Dec	9	Very high

Air quality in Astrea 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 Astrea is worst in March — around 62 µg/m³ PM2.5 (unhealthy), about 4.3× the cleanest month (December, 14 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	32	62	32	26	25	25	21	17	17	15	14
Level	Moderate	Moderate	Unhealthy	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	17	Moderate
Feb	32	Moderate
Mar	62	Unhealthy
Apr	32	Moderate
May	26	Moderate
Jun	25	Moderate
Jul	25	Moderate
Aug	21	Moderate
Sep	17	Moderate
Oct	17	Moderate
Nov	15	Moderate
Dec	14	Moderate

Location & terrain

Where is Astrea?

Astrea sits at 9.5°N, 74.0°W, 87 m above sea level, in Colombia. The nearest listed city is Chimichagua, 32 km away.

Topography around Astrea

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

Within 3 km, the terrain around Astrea has only modest variations in elevation — a maximum elevation change of 36 m around an average of 83 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 116 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,838 m.

The land around Astrea is covered by grassland (80%) within 3 km, grassland (75%) and trees (25%) within 16 km, and grassland (61%) and trees (29%) within 80 km.

3 km

36 m

grassland 80%

16 km

116 m

grassland 75%

80 km

2,838 m

grassland 61%

treesgrasslandartificial surfaceswaterwetland

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

September weather nearby: Chimichagua 32 km · Chiriguaná 44 km · Guamal 48 km · Bosconia 53 km · El Banco 55 km · Nueva Granada 57 km · Mompós 57 km · Curumaní 58 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 Astrea (9.4983°, -73.9759°, elevation 87 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	33	24
2	33	24
3	33	24
4	33	24
5	33	24
6	33	24
7	33	24
8	33	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	6	94
6	6	94
7	6	94
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	4	96
28	4	96
29	4	96
30	5	95

	Rain chance (%)
1	87
2	88
3	88
4	88
5	89
6	89
7	89
8	90
9	90
10	90
11	91
12	91
13	91
14	91
15	92
16	92
17	92
18	92
19	92
20	93
21	93
22	93
23	93
24	93
25	93
26	93
27	93
28	93
29	94
30	94

	Oppressive (%)	Miserable (%)
1	12	88
2	13	87
3	13	87
4	13	87
5	14	86
6	14	86
7	15	85
8	15	85
9	15	85
10	16	84
11	16	84
12	17	83
13	17	83
14	17	83
15	17	83
16	18	82
17	18	82
18	18	82
19	18	82
20	18	82
21	19	81
22	19	81
23	19	81
24	18	82
25	18	82
26	18	82
27	18	82
28	18	82
29	18	82
30	18	82

	Avg high (°C)	Avg low (°C)
1	33	24
2	33	24
3	33	24
4	33	24
5	33	24
6	33	24
7	33	24
8	33	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	6	94
6	6	94
7	6	94
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	4	96
28	4	96
29	4	96
30	5	95

	Rain chance (%)
1	87
2	88
3	88
4	88
5	89
6	89
7	89
8	90
9	90
10	90
11	91
12	91
13	91
14	91
15	92
16	92
17	92
18	92
19	92
20	93
21	93
22	93
23	93
24	93
25	93
26	93
27	93
28	93
29	94
30	94

	Oppressive (%)	Miserable (%)
1	12	88
2	13	87
3	13	87
4	13	87
5	14	86
6	14	86
7	15	85
8	15	85
9	15	85
10	16	84
11	16	84
12	17	83
13	17	83
14	17	83
15	17	83
16	18	82
17	18	82
18	18	82
19	18	82
20	18	82
21	19	81
22	19	81
23	19	81
24	18	82
25	18	82
26	18	82
27	18	82
28	18	82
29	18	82
30	18	82

	Avg high (°C)	Avg low (°C)
1	33	24
2	33	24
3	33	24
4	33	24
5	33	24
6	33	24
7	33	24
8	33	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	6	94
6	6	94
7	6	94
8	5	95
9	5	95
10	5	95
11	5	95
12	5	95
13	5	95
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	4	96
28	4	96
29	4	96
30	5	95

	Rain chance (%)
1	87
2	88
3	88
4	88
5	89
6	89
7	89
8	90
9	90
10	90
11	91
12	91
13	91
14	91
15	92
16	92
17	92
18	92
19	92
20	93
21	93
22	93
23	93
24	93
25	93
26	93
27	93
28	93
29	94
30	94

	Oppressive (%)	Miserable (%)
1	12	88
2	13	87
3	13	87
4	13	87
5	14	86
6	14	86
7	15	85
8	15	85
9	15	85
10	16	84
11	16	84
12	17	83
13	17	83
14	17	83
15	17	83
16	18	82
17	18	82
18	18	82
19	18	82
20	18	82
21	19	81
22	19	81
23	19	81
24	18	82
25	18	82
26	18	82
27	18	82
28	18	82
29	18	82
30	18	82