Heverlee weather in October

In October, Heverlee sees average daytime highs of 14°C and overnight lows near 8°C, with 59 mm of rain across 11.4 wet days and about 10.4 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 13°C by the end. The sky is clear or mostly clear about 15% 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 30 min by month's end. Set against the rest of the year, October is Heverlee's 8th-clearest and 6th-windiest month. For the whole year in context, see Heverlee's year-round climate.

Daytime high: 14°; 6th warmest
Overnight low: 8°; 7th coldest
Rainfall: 59 mm; 11.4 wet days
Daylight: 10 h 24 min; 7:14 AM – 5:39 PM
Cloud cover: 72%; 8th clearest
Wind: 15 km/h; 6th windiest
Solar energy: 1.88 kWh/m²
Travel score: 4.0; out of 10

Heverlee is section of Leuven, Belgium.

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

← September Heverlee 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 13°C by the end.

A typical October day in Heverlee reaches about 14°C in the afternoon and slips back to 8°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 19°C. Set against its neighbours, October runs about 4°C cooler than September and about 5°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	17	16	16	16	16	16	16	15	15	15	15	15	15	15	14	14	14	14	14	14	14	13	13	13	13	13	13	13	12	12
Avg low (°C)	10	10	10	9	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7

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

How October really feels in Heverlee

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.

Heverlee weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	6° / 1°	62	12.3	1.3	8.2	0.3
Feb	7° / 1°	58	11.2	2.1	9.7	0.6
Mar	10° / 3°	57	12.1	0.9	11.5	2.3
Apr	14° / 6°	50	11.4	0	13.5	3.9
May	18° / 9°	65	12.9	0	15.2	5.2
Jun	21° / 12°	70	12.1	0	16.2	5.9
Jul	23° / 14°	75	12.7	0	15.8	6.3
Aug	22° / 14°	78	12.2	0	14.3	6.3
Sep	19° / 11°	57	10.5	0	12.4	5.8
Oct	14° / 8°	59	11.4	0	10.4	4.0
Nov	9° / 5°	64	12.1	0.4	8.7	1.8
Dec	6° / 2°	75	13.2	1.7	7.8	0.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 72%.

	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 (%)	29	28	28	28	28	28	28	28	28	28	30	30	30	31	32	32	31	31	31	31	29	29	29	28	27	26	26	25	25	25	25
Cloudier (%)	71	72	72	72	72	72	72	72	72	72	70	70	70	69	68	68	69	69	69	69	71	71	71	72	73	74	74	75	75	75	75

	Clearer (%)	Cloudier (%)
1	29	71
2	28	72
3	28	72
4	28	72
5	28	72
6	28	72
7	28	72
8	28	72
9	28	72
10	28	72
11	30	70
12	30	70
13	30	70
14	31	69
15	32	68
16	32	68
17	31	69
18	31	69
19	31	69
20	31	69
21	29	71
22	29	71
23	29	71
24	28	72
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	25	75
31	25	75

Chance of precipitation in October

Any precipitation

Heverlee gets around 59 mm of rain over 11.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 41% 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	31
Rain chance (%)	41	41	40	40	40	39	38	38	37	37	36	36	36	35	35	35	35	35	35	36	36	36	36	37	37	38	38	38	39	39	40

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

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 90% 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 (%)	83	83	83	84	84	85	85	86	87	87	88	89	89	90	90	91	91	92	92	93	93	94	94	95	95	96	96	97	97	97	98
Comfortable (%)	17	17	17	16	16	15	15	14	13	13	12	11	11	10	10	9	9	8	8	7	7	6	6	5	5	4	4	3	3	3	2

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	84	16
5	84	16
6	85	15
7	85	15
8	86	14
9	87	13
10	87	13
11	88	12
12	89	11
13	89	11
14	90	10
15	90	10
16	91	9
17	91	9
18	92	8
19	92	8
20	93	7
21	93	7
22	94	6
23	94	6
24	95	5
25	95	5
26	96	4
27	96	4
28	97	3
29	97	3
30	97	3
31	98	2

Wind in October

Winds average 15 km/h in October.

Across October, daily wind ranges from about 14 km/h on the calmest days to 16 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)	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 24 min at the start of October to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over October. Sunrise moves from 6:49 AM to 7:40 AM, and sunset from 6:12 PM to 5:10 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	11.3	11.3	11.2	11.1	11.1	11.0	10.9	10.9	10.8	10.7	10.7	10.6	10.5	10.5	10.4	10.4	10.3	10.2	10.2	10.1	10.0	10.0	9.9	9.9	9.8	9.7	9.7	9.6	9.6	9.5
Sunrise (AM)	6:49	6:50	6:52	6:53	6:55	6:57	6:58	7:00	7:02	7:04	7:05	7:07	7:09	7:10	7:12	7:14	7:15	7:17	7:19	7:21	7:22	7:24	7:26	7:28	7:29	7:31	7:33	7:35	7:36	7:38	7:40
Sunset (PM)	6:12	6:10	6:07	6:05	6:03	6:01	5:58	5:56	5:54	5:52	5:49	5:47	5:45	5:43	5:41	5:39	5:37	5:35	5:33	5:31	5:29	5:27	5:25	5:23	5:21	5:19	5:17	5:15	5:13	5:12	5:10

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.4	6:49	6:12
2	11.3	6:50	6:10
3	11.3	6:52	6:07
4	11.2	6:53	6:05
5	11.1	6:55	6:03
6	11.1	6:57	6:01
7	11.0	6:58	5:58
8	10.9	7:00	5:56
9	10.9	7:02	5:54
10	10.8	7:04	5:52
11	10.7	7:05	5:49
12	10.7	7:07	5:47
13	10.6	7:09	5:45
14	10.5	7:10	5:43
15	10.5	7:12	5:41
16	10.4	7:14	5:39
17	10.4	7:15	5:37
18	10.3	7:17	5:35
19	10.2	7:19	5:33
20	10.2	7:21	5:31
21	10.1	7:22	5:29
22	10.0	7:24	5:27
23	10.0	7:26	5:25
24	9.9	7:28	5:23
25	9.9	7:29	5:21
26	9.8	7:31	5:19
27	9.7	7:33	5:17
28	9.7	7:35	5:15
29	9.6	7:36	5:13
30	9.6	7:38	5:12
31	9.5	7:40	5:10

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.88 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.32 kWh/m² in June across the year — October's 1.88 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)	2.4	2.4	2.3	2.3	2.2	2.2	2.2	2.1	2.1	2.1	2.1	2.0	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	1.5	1.4	1.4	1.4
Level	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	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.4	Moderate
2	2.4	Moderate
3	2.3	Moderate
4	2.3	Moderate
5	2.2	Moderate
6	2.2	Moderate
7	2.2	Moderate
8	2.1	Moderate
9	2.1	Moderate
10	2.1	Moderate
11	2.1	Moderate
12	2.0	Moderate
13	2.0	Moderate
14	2.0	Dim
15	2.0	Dim
16	1.9	Dim
17	1.9	Dim
18	1.9	Dim
19	1.8	Dim
20	1.8	Dim
21	1.8	Dim
22	1.7	Dim
23	1.7	Dim
24	1.6	Dim
25	1.6	Dim
26	1.6	Dim
27	1.5	Dim
28	1.5	Dim
29	1.4	Dim
30	1.4	Dim
31	1.4	Dim

Planning a trip in October

Is October a good time to visit Heverlee?

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

4.0

Sightseeing

6th-best month of the year

0.2

Beach & pool

6th-best month of the year

October is a reasonable time to visit Heverlee for sightseeing.

What to pack for Heverlee in October

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

In October, Heverlee sees daytime highs around 14°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Heverlee in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Heverlee peaks around July 12 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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	1	3	4	6	6	6	6	4	2	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Moderate	Low	Low

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

Air quality in Heverlee 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 Heverlee is worst in April — around 18 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	13	13	17	18	16	15	14	15	15	13	12	11
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good

	PM2.5 (µg/m³)	Level
Jan	13	Moderate
Feb	13	Moderate
Mar	17	Moderate
Apr	18	Moderate
May	16	Moderate
Jun	15	Moderate
Jul	14	Moderate
Aug	15	Moderate
Sep	15	Moderate
Oct	13	Moderate
Nov	12	Moderate
Dec	11	Good

Location & terrain

Where is Heverlee?

Heverlee sits at 50.9°N, 4.7°E, 31 m above sea level, in Belgium. The nearest listed city is Leuven, 2.0 km away.

Topography around Heverlee

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

Within 3 km, the terrain around Heverlee has only modest variations in elevation — a maximum elevation change of 82 m around an average of 46 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 151 m; within 80 km, significant variations in elevation — a maximum elevation change of 463 m.

The land around Heverlee is covered by trees (42%) and artificial surfaces (37%) within 3 km, trees (37%), cropland (31%) and grassland (20%) within 16 km, and trees (32%), cropland (32%) and grassland (24%) within 80 km.

3 km

82 m

trees 42%

16 km

151 m

trees 37%

80 km

463 m

trees 32%

treesgrasslandcroplandartificial surfaceswater

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

October weather nearby: Leuven 2.0 km · Blauwput 3.0 km · Kessel-Lo 4.0 km · Herent 5.0 km · Rotselaar 10 km · Kortenberg 11 km · Tervuren 14 km · Overijse 15 km

Belgium travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E; 230 V · 50 Hz
Prices: ≈ 81% of US; price level, 2025
GDP per capita: $60,750; 2025
Happiness: 6.9 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.1; per 100k, 2021
Road deaths: 5.8; per 100k/yr, 2019
Income group: High; World Bank
English: Very high; EF EPI 608
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 Heverlee (50.8643°, 4.696°, elevation 31 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	10
2	17	10
3	16	10
4	16	9
5	16	9
6	16	9
7	16	9
8	16	9
9	15	9
10	15	9
11	15	9
12	15	8
13	15	8
14	15	8
15	15	8
16	14	8
17	14	8
18	14	8
19	14	8
20	14	8
21	14	8
22	14	7
23	13	7
24	13	7
25	13	7
26	13	7
27	13	7
28	13	7
29	13	7
30	12	7
31	12	7

	Clearer (%)	Cloudier (%)
1	29	71
2	28	72
3	28	72
4	28	72
5	28	72
6	28	72
7	28	72
8	28	72
9	28	72
10	28	72
11	30	70
12	30	70
13	30	70
14	31	69
15	32	68
16	32	68
17	31	69
18	31	69
19	31	69
20	31	69
21	29	71
22	29	71
23	29	71
24	28	72
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	25	75
31	25	75

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

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	84	16
5	84	16
6	85	15
7	85	15
8	86	14
9	87	13
10	87	13
11	88	12
12	89	11
13	89	11
14	90	10
15	90	10
16	91	9
17	91	9
18	92	8
19	92	8
20	93	7
21	93	7
22	94	6
23	94	6
24	95	5
25	95	5
26	96	4
27	96	4
28	97	3
29	97	3
30	97	3
31	98	2

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

	Clearer (%)	Cloudier (%)
1	29	71
2	28	72
3	28	72
4	28	72
5	28	72
6	28	72
7	28	72
8	28	72
9	28	72
10	28	72
11	30	70
12	30	70
13	30	70
14	31	69
15	32	68
16	32	68
17	31	69
18	31	69
19	31	69
20	31	69
21	29	71
22	29	71
23	29	71
24	28	72
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	25	75
31	25	75

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

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	84	16
5	84	16
6	85	15
7	85	15
8	86	14
9	87	13
10	87	13
11	88	12
12	89	11
13	89	11
14	90	10
15	90	10
16	91	9
17	91	9
18	92	8
19	92	8
20	93	7
21	93	7
22	94	6
23	94	6
24	95	5
25	95	5
26	96	4
27	96	4
28	97	3
29	97	3
30	97	3
31	98	2

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

	Clearer (%)	Cloudier (%)
1	29	71
2	28	72
3	28	72
4	28	72
5	28	72
6	28	72
7	28	72
8	28	72
9	28	72
10	28	72
11	30	70
12	30	70
13	30	70
14	31	69
15	32	68
16	32	68
17	31	69
18	31	69
19	31	69
20	31	69
21	29	71
22	29	71
23	29	71
24	28	72
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	25	75
31	25	75

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

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	84	16
5	84	16
6	85	15
7	85	15
8	86	14
9	87	13
10	87	13
11	88	12
12	89	11
13	89	11
14	90	10
15	90	10
16	91	9
17	91	9
18	92	8
19	92	8
20	93	7
21	93	7
22	94	6
23	94	6
24	95	5
25	95	5
26	96	4
27	96	4
28	97	3
29	97	3
30	97	3
31	98	2