Calais vs Saint Helier Climate
95%matchOn climate, Saint Helier is a 95% match for Calais. Compared with Calais, Saint Helier has the same summer highs, more rain in winter and more sun.
Calais gets 24 in (620 mm) of rain a year and Saint Helier 34 in (867 mm). August is the warmest month in both, with highs of 71°F (22°C) in Calais and 71°F (21°C) in Saint Helier.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
CalaisSaint Heliersolid = high, dashed = low
Rain (in per month)
CalaisSaint Helier
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Calais | Saint Helier | Calais | Saint Helier | Calais | Saint Helier | |
| Jan | 46°F(8°C) | 48°F(9°C) | 38°F(3°C) | 41°F(5°C) | 2.1 in(54 mm) | 3.8 in(97 mm) |
| Feb | 46°F(8°C) | 49°F(9°C) | 37°F(3°C) | 40°F(5°C) | 1.8 in(46 mm) | 2.9 in(73 mm) |
| Mar | 51°F(11°C) | 53°F(11°C) | 41°F(5°C) | 42°F(6°C) | 1.4 in(36 mm) | 2.6 in(65 mm) |
| Apr | 56°F(14°C) | 56°F(13°C) | 44°F(7°C) | 45°F(7°C) | 1.3 in(34 mm) | 2.0 in(52 mm) |
| May | 62°F(17°C) | 62°F(17°C) | 49°F(10°C) | 50°F(10°C) | 1.5 in(38 mm) | 2.0 in(50 mm) |
| Jun | 66°F(19°C) | 67°F(19°C) | 54°F(12°C) | 55°F(13°C) | 1.6 in(40 mm) | 2.0 in(51 mm) |
| Jul | 70°F(21°C) | 70°F(21°C) | 59°F(15°C) | 58°F(15°C) | 1.9 in(47 mm) | 1.7 in(42 mm) |
| Aug | 71°F(22°C) | 71°F(21°C) | 59°F(15°C) | 59°F(15°C) | 2.2 in(57 mm) | 2.2 in(55 mm) |
| Sep | 67°F(19°C) | 67°F(20°C) | 55°F(13°C) | 56°F(13°C) | 2.1 in(54 mm) | 2.4 in(61 mm) |
| Oct | 60°F(16°C) | 61°F(16°C) | 50°F(10°C) | 52°F(11°C) | 2.8 in(72 mm) | 3.8 in(96 mm) |
| Nov | 52°F(11°C) | 55°F(13°C) | 44°F(7°C) | 46°F(8°C) | 3.1 in(79 mm) | 4.4 in(111 mm) |
| Dec | 47°F(8°C) | 50°F(10°C) | 40°F(4°C) | 42°F(6°C) | 2.5 in(63 mm) | 4.5 in(114 mm) |
1991–2020 averages, by calendar month.