Hellevoetsluis weather in October

In October, Hellevoetsluis sees average daytime highs of 15°C and overnight lows near 9°C, with 67 mm of rain across 12.5 wet days and about 10.4 hours of daylight. It is the 6th-warmest and 4th-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 14% 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 24 min by month's end. Set against the rest of the year, October is Hellevoetsluis's 8th-clearest and 6th-windiest month. For the whole year in context, see Hellevoetsluis's year-round climate.

Daytime high
15°
6th warmest
Overnight low
7th coldest
Rainfall
67 mm
12.5 wet days
Daylight
10 h 24 min
7:18 AM – 5:39 PM
Cloud cover
71%
8th clearest
Wind
16 km/h
6th windiest
Solar energy
1.85 kWh/m²
Travel score
3.9
out of 10

Hellevoetsluis is human settlement in Voorne aan Zee, the Netherlands.

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

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 Hellevoetsluis reaches about 15°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 18°C. Set against its neighbours, October runs about 4°C cooler than September and about 5°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11710
21710
31610
41610
51610
61610
71610
81610
9159
10159
11159
12159
13159
14159
15159
16149
17148
18148
19148
20148
21148
22148
23148
24138
25138
26138
27138
28138
29138
30137
31127

How October really feels in Hellevoetsluis

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
0
heat index over the day's high
Days feeling ≤ C
0
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.

Hellevoetsluis weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6112.10.88.10.4
Feb / 5110.81.39.60.7
Mar10° / 5211.30.711.52.1
Apr14° / 4610.8013.63.8
May17° / 5911.8015.45.2
Jun20° / 12°6111.1016.45.9
Jul22° / 14°7512.90166.2
Aug22° / 14°7613.1014.46.1
Sep19° / 12°6411.6012.45.6
Oct15° / 6712.5010.43.9
Nov10° / 6613.20.38.61.9
Dec / 7213.90.97.60.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22872
32872
42872
52872
62872
72872
83070
93070
103070
113070
123169
133268
143268
153268
163268
173268
183268
193268
203367
213367
223367
233268
243268
253268
263169
273070
283070
292971
302872
312872

Chance of precipitation in October

Any precipitation

Hellevoetsluis gets around 67 mm of rain over 12.5 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 41% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
444
544
643
743
842
941
1041
1140
1240
1339
1439
1539
1638
1738
1838
1939
2039
2139
2239
2339
2440
2540
2640
2741
2841
2942
3043
3143

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
176231
278220
378220
479210
581190
682180
783170
884160
985150
1085150
1186140
1287130
1387130
1488120
1588120
1689110
1789110
1890100
1990100
209190
219190
229280
239280
249370
259370
269370
279460
289460
299550
309550
319550

Wind in October

Winds average 16 km/h in October.

Across October, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in October

DaylightNight

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

Days shrink by about 120 minutes over October. Sunrise moves from 6:51 AM to 7:45 AM, and sunset from 6:13 PM to 5:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:516:13
211.36:536:11
311.26:556:09
411.26:576:06
511.16:586:04
611.07:006:02
711.07:025:59
810.97:045:57
910.87:055:55
1010.87:075:53
1110.77:095:50
1210.67:115:48
1310.67:125:46
1410.57:145:44
1510.47:165:41
1610.47:185:39
1710.37:195:37
1810.27:215:35
1910.27:235:33
2010.17:255:31
2110.07:275:29
2210.07:285:27
239.97:305:25
249.87:325:23
259.87:345:21
269.77:365:19
279.77:385:17
289.67:395:15
299.57:415:13
309.57:435:11
319.47:455:09

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.85 kWh/m².

For context, solar energy here swings from a low near 0.6 kWh/m² to a high of 5.48 kWh/m² in June across the year — October's 1.85 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.2Moderate
62.2Moderate
72.1Moderate
82.1Moderate
92.1Moderate
102.1Moderate
112.0Moderate
122.0Moderate
132.0Dim
141.9Dim
151.9Dim
161.9Dim
171.8Dim
181.8Dim
191.8Dim
201.7Dim
211.7Dim
221.7Dim
231.6Dim
241.6Dim
251.6Dim
261.5Dim
271.5Dim
281.4Dim
291.4Dim
301.4Dim
311.3Dim
Planning a trip in October

Is October a good time to visit Hellevoetsluis?

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

3.9
Sightseeing
6th-best month of the year
0.2
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Hellevoetsluis.

What to pack for Hellevoetsluis in October

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

In October, Hellevoetsluis sees daytime highs around 15°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Hellevoetsluis in October

The nearest coast averages about 15°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in August at about 19°C and coldest in February near 6°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan7Bracing
Feb6Bracing
Mar6Bracing
Apr9Bracing
May12Bracing
Jun15Bracing
Jul17Cool
Aug19Cool
Sep18Cool
Oct15Cool
Nov12Bracing
Dec9Bracing

UV index in Hellevoetsluis 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 Hellevoetsluis peaks around June 21 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 21UV 6Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5Moderate
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Hellevoetsluis?

Hellevoetsluis sits at 51.8°N, 4.1°E, 0 m above sea level, in The Netherlands. The nearest listed city is Middelharnis, 9.0 km away.

HoogvlietVlaardingenOud-Beijerland

Topography around Hellevoetsluis

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

Within 3 km, the terrain around Hellevoetsluis has only modest variations in elevation — a maximum elevation change of 14 m around an average of 0 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 48 m; within 80 km, only modest variations in elevation — a maximum elevation change of 77 m.

The land around Hellevoetsluis is covered by water (30%), grassland (20%) and cropland (20%) within 3 km, water (33%), cropland (23%) and grassland (21%) within 16 km, and water (35%) and grassland (24%) within 80 km.

3 km
14 m
16 km
48 m
80 km
77 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Middelharnis 9.0 km · Maassluis 13 km · Spijkenisse 14 km · Hoogvliet 16 km · Vlaardingen 17 km · Naaldwijk 19 km · 's-Gravenzande 19 km · Oud-Beijerland 19 km

The Netherlands travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 84% of US
price level, 2025
GDP per capita
$73,684
2025
Happiness
7.2 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 624
Religion
none 54%Roman Catholic 20%Protestant 15%other 6%

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 Hellevoetsluis (51.8333°, 4.1333°, elevation 0 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).