July
Other strong months: August and June
78/100 weather score
The Netherlands · 1991–2020
Best time to visit
Hellevoetsluis
For Hellevoetsluis, July has the most comfortable weather in our climate comparison. Typical daytime highs are 21.5°C, nights average 14.5°C, and rainfall totals about 78 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJuly
Typical daytime high21.5°C
Typical night-time low14.5°C
July rainfall78 mm
July
Other strong months: August and June
44/100 weather score
June
Other strong months: May and September
82/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
3 months fit your choices for Hellevoetsluis
December has the lowest comfort score at 6 out of 100, compared with July at 78. The main reason is that days reach only 7.2°C, 17° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Hellevoetsluis?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Hellevoetsluis?
July is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 21.5°C and 78 mm of rain.
What is the hottest month in Hellevoetsluis?
August is hottest in this record, with a typical daytime high of 22.2°C and a night-time low of 14.7°C.
Which month has the least rain?
April has the lowest monthly rainfall total at 38 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 6.5°C | 2.3°C | 69 mm | 12.1 | 6.5°C | 8 h 15 | 7 | Strong coverage |
| February | 7.1°C | 2°C | 64 mm | 11 | 5.8°C | 9 h 51 | 9 | Strong coverage |
| March | 10.1°C | 3.8°C | 54 mm | 9.3 | 6.3°C | 11 h 41 | 26 | Strong coverage |
| April | 14°C | 6.2°C | 38 mm | 8.1 | 8.5°C | 13 h 48 | 46 | Strong coverage |
| May | 17.1°C | 9.4°C | 56 mm | 8.7 | 11.5°C | 15 h 37 | 59 | Strong coverage |
| June | 19.5°C | 12.2°C | 63 mm | 9.3 | 14.6°C | 16 h 40 | 71 | Strong coverage |
| July | 21.5°C | 14.5°C | 78 mm | 10.4 | 17.2°C | 16 h 15 | 78 | Strong coverage |
| August | 22.2°C | 14.7°C | 102 mm | 11 | 18.7°C | 14 h 38 | 77 | Good coverage |
| September | 19.4°C | 12.5°C | 87 mm | 11 | 17.7°C | 12 h 34 | 66 | Strong coverage |
| October | 15.1°C | 9.2°C | 87 mm | 12.4 | 15.0°C | 10 h 33 | 44 | Strong coverage |
| November | 10.4°C | 5.6°C | 94 mm | 14.5 | 11.6°C | 8 h 44 | 20 | Strong coverage |
| December | 7.2°C | 3.1°C | 84 mm | 14.5 | 8.5°C | 7 h 48 | 6 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 14.2°C6 Jan 2014 | -13.0°C2 Jan 1997 | 31 mm13 Jan 2015 | 163 mm2016 · driest 2 mm in 1997 | 44 |
| February | 18.7°C26 Feb 2019 | -12.3°C7 Feb 1991 | 29 mm4 Feb 2001 | 146 mm2020 · driest 14 mm in 2023 | 45 |
| March | 22.8°C30 Mar 2017 | -8.6°C4 Mar 2005 | 25 mm6 Mar 1998 | 119 mm2008 · driest 4 mm in 2025 | 45 |
| April | 28.7°C19 Apr 2018 | -2.5°C10 Apr 1977 | 36 mm30 Apr 2018 | 89 mm2018 · driest 0 mm in 2007 | 45 |
| May | 32.7°C27 May 2017 | 1.5°C6 May 1979 | 38 mm25 May 2024 | 150 mm2024 · driest 9 mm in 2020 | 45 |
| June | 36.9°C26 Jun 2026 | 5.1°C2 Jun 1991 | 32 mm7 Jun 1997 | 132 mm1998 · driest 11 mm in 2018 | 45 |
| July | 38.9°C25 Jul 2019 | 8.5°C5 Jul 1978 | 69 mm14 Jul 2011 | 214 mm2011 · driest 5 mm in 2018 | 43 |
| August | 34.8°C6 Aug 2003 | 8.4°C29 Aug 2007 | 59 mm5 Aug 2001 | 230 mm2006 · driest 12 mm in 2003 | 44 |
| September | 32.5°C13 Sep 2016 | 0.5°C22 Sep 1979 | 108 mm19 Sep 2001 | 289 mm2001 · driest 11 mm in 2014 | 43 |
| October | 25.9°C1 Oct 2011 | -2.1°C30 Oct 1997 | 78 mm4 Oct 1999 | 179 mm2020 · driest 16 mm in 1995 | 44 |
| November | 19.7°C6 Nov 2018 | -6.0°C23 Nov 1998 | 56 mm9 Nov 2000 | 204 mm2000 · driest 5 mm in 2011 | 44 |
| December | 19.5°C2 Dec 1979 | -11.5°C31 Dec 1978 | 35 mm28 Dec 2003 | 135 mm1999 · driest 12 mm in 2016 | 44 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 9 | 2 |
| February | 0 | 0 | 8 | 2 |
| March | 0 | 0 | 4 | 2 |
| April | <1 | 0 | <1 | <1 |
| May | 2 | <1 | 0 | 2 |
| June | 3 | <1 | 0 | 2 |
| July | 4 | 1 | 0 | 3 |
| August | 5 | 1 | 0 | 3 |
| September | 2 | <1 | 0 | 3 |
| October | <1 | 0 | <1 | 3 |
| November | 0 | 0 | 2 | 2 |
| December | 0 | 0 | 7 | 2 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 0% | 39% | 6% | 52% | 3.8–8.3°C |
| February | 0% | 39% | 5% | 52% | 4.7–9.6°C |
| March | 1% | 30% | 4% | 36% | 7.8–12.4°C |
| April | 10% | 27% | 3% | 35% | 11.3–16.2°C |
| May | 19% | 28% | 6% | 34% | 14.5–18.8°C |
| June | 31% | 30% | 6% | 39% | 17.9–22.2°C |
| July | 49% | 33% | 8% | 42% | 19.3–23.3°C |
| August | 56% | 34% | 10% | 46% | 20.3–24.0°C |
| September | 34% | 36% | 9% | 50% | 17.6–21.1°C |
| October | 5% | 41% | 10% | 54% | 13.1–17.2°C |
| November | 0% | 49% | 9% | 68% | 8.9–12.0°C |
| December | 0% | 46% | 8% | 61% | 5.6–9.0°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 2754454
- NOAA station
- NLE00152494 · HOEK VAN HOLLAND
- Station distance
- 17.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 24 usable years
- Daylight
- Calculated from latitude 51.83°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 18 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Hellevoetsluis is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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