Heilbronn weather in October

In October, Heilbronn sees average daytime highs of 14°C and overnight lows near 7°C, with 72 mm of precipitation across 11.8 wet days and about 10.5 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 11°C by the end. The sky is clear or mostly clear about 18% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of October to 9 h 42 min by month's end. Set against the rest of the year, October is Heilbronn's 8th-clearest and 6th-windiest month. For the whole year in context, see Heilbronn's year-round climate.

Daytime high: 14°; 7th warmest
Overnight low: 7°; 7th coldest
Precipitation: 72 mm; 11.8 wet days
Daylight: 10 h 30 min; 6:53 AM – 5:24 PM
Cloud cover: 70%; 8th clearest
Wind: 10 km/h; 6th windiest
Solar energy: 2.02 kWh/m²
Travel score: 3.7; out of 10

Air quality: Moderate; PM2.5 11.6 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← September Heilbronn year-round climate November →Best places to visit in October

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 11°C by the end.

A typical October day in Heilbronn reaches about 14°C in the afternoon and slips back to 7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 19°C. Set against its neighbours, October runs about 6°C cooler than September and about 6°C warmer than November.

	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	31
Avg high (°C)	17	16	16	16	16	16	15	15	15	15	15	14	14	14	14	14	13	13	13	13	13	13	12	12	12	12	12	12	11	11	11
Avg low (°C)	9	9	9	9	8	8	8	8	8	8	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5

	Avg high (°C)	Avg low (°C)
1	17	9
2	16	9
3	16	9
4	16	9
5	16	8
6	16	8
7	15	8
8	15	8
9	15	8
10	15	8
11	15	7
12	14	7
13	14	7
14	14	7
15	14	7
16	14	7
17	13	6
18	13	6
19	13	6
20	13	6
21	13	6
22	13	6
23	12	6
24	12	6
25	12	6
26	12	5
27	12	5
28	12	5
29	11	5
30	11	5
31	11	5

How October really feels in Heilbronn

Once humidity and wind are folded in, October averages 0 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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Heilbronn weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	4° / -1°	76	12.3	4.4	8.5	0.0
Feb	5° / -1°	66	11.3	4.3	9.8	0.2
Mar	10° / 2°	76	12.5	2	11.6	2.0
Apr	15° / 5°	52	10.4	0.2	13.4	4.2
May	19° / 9°	79	13.1	0	15	5.5
Jun	22° / 13°	66	12.2	0	15.9	6.2
Jul	24° / 14°	74	12.7	0	15.6	6.5
Aug	24° / 14°	62	11.1	0	14.2	6.7
Sep	19° / 11°	63	10.3	0	12.4	6.0
Oct	14° / 7°	72	11.8	0.1	10.5	3.7
Nov	8° / 3°	72	11.6	1.4	8.9	1.1
Dec	4° / 0°	90	14.6	4.7	8.1	0.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 70%.

	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	31
Clearer (%)	30	30	29	29	29	29	29	30	30	31	32	32	33	32	33	33	33	32	31	30	31	30	30	29	29	29	28	29	28	29	29
Cloudier (%)	70	70	71	71	71	71	71	70	70	69	68	68	67	68	67	67	67	68	69	70	69	70	70	71	71	71	72	71	72	71	71

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	31	69
11	32	68
12	32	68
13	33	67
14	32	68
15	33	67
16	33	67
17	33	67
18	32	68
19	31	69
20	30	70
21	31	69
22	30	70
23	30	70
24	29	71
25	29	71
26	29	71
27	28	72
28	29	71
29	28	72
30	29	71
31	29	71

Chance of precipitation in October

Any precipitation

Heilbronn gets around 72 mm of rain and snow over 11.8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 37% and peaks near 42% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

	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	31
Rain chance (%)	41	42	42	42	41	41	40	40	39	38	37	37	36	35	35	35	35	35	35	35	35	35	36	36	36	36	36	35	35	35	36

	Rain chance (%)
1	41
2	42
3	42
4	42
5	41
6	41
7	40
8	40
9	39
10	38
11	37
12	37
13	36
14	35
15	35
16	35
17	35
18	35
19	35
20	35
21	35
22	35
23	36
24	36
25	36
26	36
27	36
28	35
29	35
30	35
31	36

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

	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	31
Dry (%)	90	91	91	92	92	93	94	94	95	95	96	96	96	97	97	97	98	98	98	98	98	99	99	99	99	99	99	99	99	99	99
Comfortable (%)	10	9	9	8	8	7	6	6	5	5	4	4	4	3	3	3	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1

	Dry (%)	Comfortable (%)
1	90	10
2	91	9
3	91	9
4	92	8
5	92	8
6	93	7
7	94	6
8	94	6
9	95	5
10	95	5
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 11 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	31
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11
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	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	11	calm
30	11	calm
31	11	calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 24 min at the start of October to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over October. Sunrise moves from 6:29 AM to 7:17 AM, and sunset from 5:55 PM to 4:56 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	31
Daylight (h)	11.4	11.4	11.3	11.2	11.2	11.1	11.1	11.0	10.9	10.9	10.8	10.8	10.7	10.6	10.6	10.5	10.5	10.4	10.3	10.3	10.2	10.2	10.1	10.0	10.0	9.9	9.9	9.8	9.8	9.7	9.7
Sunrise (AM)	6:29	6:31	6:32	6:34	6:35	6:37	6:39	6:40	6:42	6:43	6:45	6:46	6:48	6:50	6:51	6:53	6:54	6:56	6:58	6:59	7:01	7:02	7:04	7:06	7:07	7:09	7:11	7:12	7:14	7:15	7:17
Sunset (PM)	5:55	5:53	5:51	5:48	5:46	5:44	5:42	5:40	5:38	5:36	5:34	5:32	5:30	5:28	5:26	5:24	5:22	5:20	5:18	5:16	5:14	5:12	5:10	5:08	5:07	5:05	5:03	5:01	5:00	4:58	4:56

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.4	6:29	5:55
2	11.4	6:31	5:53
3	11.3	6:32	5:51
4	11.2	6:34	5:48
5	11.2	6:35	5:46
6	11.1	6:37	5:44
7	11.1	6:39	5:42
8	11.0	6:40	5:40
9	10.9	6:42	5:38
10	10.9	6:43	5:36
11	10.8	6:45	5:34
12	10.8	6:46	5:32
13	10.7	6:48	5:30
14	10.6	6:50	5:28
15	10.6	6:51	5:26
16	10.5	6:53	5:24
17	10.5	6:54	5:22
18	10.4	6:56	5:20
19	10.3	6:58	5:18
20	10.3	6:59	5:16
21	10.2	7:01	5:14
22	10.2	7:02	5:12
23	10.1	7:04	5:10
24	10.0	7:06	5:08
25	10.0	7:07	5:07
26	9.9	7:09	5:05
27	9.9	7:11	5:03
28	9.8	7:12	5:01
29	9.8	7:14	5:00
30	9.7	7:15	4:58
31	9.7	7:17	4:56

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.02 kWh/m².

For context, solar energy here swings from a low near 0.75 kWh/m² to a high of 5.6 kWh/m² in June across the year — October's 2.02 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	31
Solar energy (kWh/m²)	2.6	2.5	2.5	2.4	2.4	2.4	2.3	2.3	2.3	2.2	2.2	2.2	2.2	2.1	2.1	2.1	2.0	2.0	2.0	1.9	1.9	1.9	1.8	1.8	1.8	1.7	1.7	1.6	1.6	1.6	1.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.6	Moderate
2	2.5	Moderate
3	2.5	Moderate
4	2.4	Moderate
5	2.4	Moderate
6	2.4	Moderate
7	2.3	Moderate
8	2.3	Moderate
9	2.3	Moderate
10	2.2	Moderate
11	2.2	Moderate
12	2.2	Moderate
13	2.2	Moderate
14	2.1	Moderate
15	2.1	Moderate
16	2.1	Moderate
17	2.0	Moderate
18	2.0	Moderate
19	2.0	Dim
20	1.9	Dim
21	1.9	Dim
22	1.9	Dim
23	1.8	Dim
24	1.8	Dim
25	1.8	Dim
26	1.7	Dim
27	1.7	Dim
28	1.6	Dim
29	1.6	Dim
30	1.6	Dim
31	1.5	Dim

Planning a trip in October

Is October a good time to visit Heilbronn?

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

3.7

Sightseeing

7th-best month of the year

0.2

Beach & pool

7th-best month of the year

October is a weaker month for outdoor sightseeing in Heilbronn.

What to pack for Heilbronn in October

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

In October, Heilbronn sees daytime highs around 14°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

UV index in Heilbronn in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Heilbronn peaks around July 15 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	4	4	6	7	8	6	4	3	1	1
Level	Low	Low	Moderate	Moderate	High	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	4	Moderate
Apr	4	Moderate
May	6	High
Jun	7	High
Jul	8	Very high
Aug	6	High
Sep	4	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Heilbronn in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Heilbronn is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 8 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Heilbronn's WHO annual average of 11.6 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	10	13	15	14	15	12	13	12	10	8	8
Level	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	10	Good
Mar	13	Moderate
Apr	15	Moderate
May	14	Moderate
Jun	15	Moderate
Jul	12	Moderate
Aug	13	Moderate
Sep	12	Good
Oct	10	Good
Nov	8	Good
Dec	8	Good

Location & terrain

Where is Heilbronn?

Heilbronn sits at 49.1°N, 9.2°E, 173 m above sea level, in Germany. The nearest listed city is Neckarsulm, 5.0 km away.

Topography around Heilbronn

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

Within 3 km, the terrain around Heilbronn has only modest variations in elevation — a maximum elevation change of 181 m around an average of 196 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 416 m; within 80 km, large variations in elevation — a maximum elevation change of 910 m.

The land around Heilbronn is covered by artificial surfaces (43%) and trees (34%) within 3 km, cropland (37%) and trees (31%) within 16 km, and trees (47%) and cropland (28%) within 80 km.

3 km

181 m

artificial surfaces 43%

16 km

416 m

cropland 37%

80 km

910 m

trees 47%

treesgrasslandcroplandartificial surfaceswater

← September Heilbronn year-round climate November →Best places to visit in October

October weather nearby: Neckarsulm 5.0 km · Brackenheim 13 km · Bad Rappenau 14 km · Öhringen 22 km · Eppingen 22 km · Marbach am Neckar 22 km · Sachsenheim 23 km · Bietigheim-Bissingen 23 km

Germany travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 80% of US; price level, 2025
GDP per capita: $60,496; 2025
Happiness: 6.9 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 0.9; per 100k, 2023
Road deaths: 3.8; per 100k/yr, 2019
Income group: High; World Bank
English: Very high; EF EPI 615
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 Heilbronn (49.1399°, 9.2205°, elevation 173 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	17	9
2	16	9
3	16	9
4	16	9
5	16	8
6	16	8
7	15	8
8	15	8
9	15	8
10	15	8
11	15	7
12	14	7
13	14	7
14	14	7
15	14	7
16	14	7
17	13	6
18	13	6
19	13	6
20	13	6
21	13	6
22	13	6
23	12	6
24	12	6
25	12	6
26	12	5
27	12	5
28	12	5
29	11	5
30	11	5
31	11	5

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	31	69
11	32	68
12	32	68
13	33	67
14	32	68
15	33	67
16	33	67
17	33	67
18	32	68
19	31	69
20	30	70
21	31	69
22	30	70
23	30	70
24	29	71
25	29	71
26	29	71
27	28	72
28	29	71
29	28	72
30	29	71
31	29	71

	Rain chance (%)
1	41
2	42
3	42
4	42
5	41
6	41
7	40
8	40
9	39
10	38
11	37
12	37
13	36
14	35
15	35
16	35
17	35
18	35
19	35
20	35
21	35
22	35
23	36
24	36
25	36
26	36
27	36
28	35
29	35
30	35
31	36

	Dry (%)	Comfortable (%)
1	90	10
2	91	9
3	91	9
4	92	8
5	92	8
6	93	7
7	94	6
8	94	6
9	95	5
10	95	5
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°C)	Avg low (°C)
1	17	9
2	16	9
3	16	9
4	16	9
5	16	8
6	16	8
7	15	8
8	15	8
9	15	8
10	15	8
11	15	7
12	14	7
13	14	7
14	14	7
15	14	7
16	14	7
17	13	6
18	13	6
19	13	6
20	13	6
21	13	6
22	13	6
23	12	6
24	12	6
25	12	6
26	12	5
27	12	5
28	12	5
29	11	5
30	11	5
31	11	5

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	31	69
11	32	68
12	32	68
13	33	67
14	32	68
15	33	67
16	33	67
17	33	67
18	32	68
19	31	69
20	30	70
21	31	69
22	30	70
23	30	70
24	29	71
25	29	71
26	29	71
27	28	72
28	29	71
29	28	72
30	29	71
31	29	71

	Rain chance (%)
1	41
2	42
3	42
4	42
5	41
6	41
7	40
8	40
9	39
10	38
11	37
12	37
13	36
14	35
15	35
16	35
17	35
18	35
19	35
20	35
21	35
22	35
23	36
24	36
25	36
26	36
27	36
28	35
29	35
30	35
31	36

	Dry (%)	Comfortable (%)
1	90	10
2	91	9
3	91	9
4	92	8
5	92	8
6	93	7
7	94	6
8	94	6
9	95	5
10	95	5
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°C)	Avg low (°C)
1	17	9
2	16	9
3	16	9
4	16	9
5	16	8
6	16	8
7	15	8
8	15	8
9	15	8
10	15	8
11	15	7
12	14	7
13	14	7
14	14	7
15	14	7
16	14	7
17	13	6
18	13	6
19	13	6
20	13	6
21	13	6
22	13	6
23	12	6
24	12	6
25	12	6
26	12	5
27	12	5
28	12	5
29	11	5
30	11	5
31	11	5

	Clearer (%)	Cloudier (%)
1	30	70
2	30	70
3	29	71
4	29	71
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	31	69
11	32	68
12	32	68
13	33	67
14	32	68
15	33	67
16	33	67
17	33	67
18	32	68
19	31	69
20	30	70
21	31	69
22	30	70
23	30	70
24	29	71
25	29	71
26	29	71
27	28	72
28	29	71
29	28	72
30	29	71
31	29	71

	Rain chance (%)
1	41
2	42
3	42
4	42
5	41
6	41
7	40
8	40
9	39
10	38
11	37
12	37
13	36
14	35
15	35
16	35
17	35
18	35
19	35
20	35
21	35
22	35
23	36
24	36
25	36
26	36
27	36
28	35
29	35
30	35
31	36

	Dry (%)	Comfortable (%)
1	90	10
2	91	9
3	91	9
4	92	8
5	92	8
6	93	7
7	94	6
8	94	6
9	95	5
10	95	5
11	96	4
12	96	4
13	96	4
14	97	3
15	97	3
16	97	3
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1