inland destination · city of 21,927 · warmest in Jul · mid-range
Open Hellevoetsluis on the live value map →| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 3 | 3 | 6 | 8 | 12 | 15 | 17 | 17 | 15 | 11 | 7 | 4 |
| High °C | 5 | 6 | 9 | 12 | 16 | 18 | 20 | 21 | 18 | 14 | 9 | 7 |
| Low °C | 1 | 1 | 3 | 5 | 9 | 11 | 13 | 13 | 11 | 8 | 5 | 2 |
| Rain (days) | 63 | 48 | 60 | 42 | 49 | 69 | 71 | 59 | 83 | 84 | 86 | 73 |
Warmest month: Jul. Driest: Apr.
No mild-temperature months (18–28°C) — expect extremes.