Den Helder vs Boulogne-sur-Mer Climate
94%matchOn climate, Boulogne-sur-Mer is a 94% match for Den Helder. Very close: temperatures within 3°F (2°C), with similar rain, humidity and sun.
Den Helder gets 32 in (804 mm) of rain a year and Boulogne-sur-Mer 25 in (628 mm). August is the warmest month in both, with highs of 70°F (21°C) in Den Helder and 71°F (21°C) in Boulogne-sur-Mer.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Den HelderBoulogne-sur-Mersolid = high, dashed = low
Rain (in per month)
Den HelderBoulogne-sur-Mer
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Den Helder | Boulogne-sur-Mer | Den Helder | Boulogne-sur-Mer | Den Helder | Boulogne-sur-Mer | |
| Jan | 43°F(6°C) | 45°F(7°C) | 35°F(2°C) | 38°F(4°C) | 2.6 in(66 mm) | 2.3 in(58 mm) |
| Feb | 43°F(6°C) | 46°F(8°C) | 35°F(2°C) | 38°F(3°C) | 1.9 in(49 mm) | 2.0 in(52 mm) |
| Mar | 47°F(8°C) | 51°F(10°C) | 38°F(3°C) | 41°F(5°C) | 1.8 in(46 mm) | 1.3 in(33 mm) |
| Apr | 54°F(12°C) | 56°F(14°C) | 42°F(6°C) | 44°F(7°C) | 1.3 in(33 mm) | 1.2 in(30 mm) |
| May | 61°F(16°C) | 62°F(17°C) | 49°F(9°C) | 50°F(10°C) | 1.8 in(46 mm) | 1.5 in(38 mm) |
| Jun | 65°F(19°C) | 65°F(19°C) | 53°F(12°C) | 55°F(13°C) | 2.3 in(58 mm) | 1.4 in(35 mm) |
| Jul | 69°F(21°C) | 69°F(21°C) | 58°F(14°C) | 59°F(15°C) | 2.6 in(66 mm) | 1.7 in(43 mm) |
| Aug | 70°F(21°C) | 71°F(21°C) | 58°F(15°C) | 60°F(15°C) | 3.1 in(78 mm) | 2.3 in(59 mm) |
| Sep | 65°F(18°C) | 66°F(19°C) | 54°F(12°C) | 56°F(13°C) | 3.6 in(92 mm) | 2.0 in(50 mm) |
| Oct | 58°F(14°C) | 60°F(15°C) | 48°F(9°C) | 51°F(10°C) | 4.1 in(104 mm) | 2.9 in(73 mm) |
| Nov | 50°F(10°C) | 52°F(11°C) | 42°F(5°C) | 45°F(7°C) | 3.5 in(88 mm) | 3.6 in(92 mm) |
| Dec | 45°F(7°C) | 47°F(8°C) | 37°F(3°C) | 40°F(4°C) | 3.1 in(78 mm) | 2.6 in(65 mm) |
1991–2020 averages, by calendar month.