Jersey in May has mild conditions, with highs averaging 13.9°C (57°F) and noticeably cooler mornings. Rain falls on about 10 days this month. Winds are noticeable.
This month falls at the end of Spring.
Temperature
14°C / 12°C
Jersey Weather in May 2027
Monthly climate averages for Saint Helier. Based on 10-year ERA5 reanalysis data.
Cfb Oceanic
Climate Overview
Compared to April, this month is about 2°C warmer with 2 more rainy days. Temperatures will rise further into June.
Monthly May Averages
Feels Like
12°C / 8°C
Rain
10 days · 49 mm
Sunshine
12.6h / day
Humidity
82% — Very Humid
Wind
30 km/h
Wind Direction
NNW (343°)
Gusts
40 km/h
Daylight
15.3 h
Cloud Cover
55%
Clear Sky Days
3.8
Dew Point
10°C — Dry
Moon Phase
Waxing Gibbous · 66%
Seasonal Demand
Quiet (2/5)
Sun Position
Sunrise 05:27
Daylight 15.3h
Sunset 20:45
Pros
- Abundant sunshine for exploring and outdoor fun
- Quieter period with less favourable weather
What to Wear
Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers provide flexibility between indoors and outdoors. A waterproof jacket and shoes are non-negotiable — showers are frequent.
Packing List
Layered clothingLight jacketUmbrellaWaterproof jacketComfortable walking shoes
Compare Months
January
Wet 
February
Poor 
March
Poor April
Fair May
Fair June best
Good July best
Excellent August best
Excellent September best
Good October
Fair November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | Status | Details |
|---|---|---|---|---|---|---|---|
| January | 9°C / 7°C | 5°C / 1°C | 18days (131 mm) Wet | 4.7h Fair | 80% Humid | Wet | View Details |
| February | 9°C / 8°C | 5°C / 1°C | 14days (88 mm) Wet | 5.9h Fair | 82% Humid | Poor | View Details |
| March | 10°C / 8°C | 6°C / 2°C | 13days (67 mm) Wet | 8.7h Good | 80% Humid | Poor | View Details |
| April | 12°C / 9°C | 9°C / 4°C | 8days (44 mm) Wet | 11.3h Excellent | 78% Humid | Fair | View Details |
| May | 14°C / 12°C | 12°C / 8°C | 10days (49 mm) Wet | 12.6h Excellent | 82% Humid | Fair | View Details |
| June best | 17°C / 15°C | 16°C / 12°C | 10days (61 mm) Wet | 13h Excellent | 83% Humid | Good | View Details |
| July best | 18°C / 17°C | 18°C / 14°C | 11days (55 mm) Wet | 12.7h Excellent | 83% Humid | Excellent | View Details |
| August best | 19°C / 17°C | 19°C / 15°C | 9days (57 mm) Wet | 11.6h Excellent | 82% Humid | Excellent | View Details |
| September best | 18°C / 16°C | 17°C / 13°C | 12days (101 mm) Wet | 10.1h Excellent | 80% Humid | Good | View Details |
| October | 16°C / 14°C | 13°C / 10°C | 17days (151 mm) Wet | 7.6h Good | 80% Humid | Fair | View Details |
| November | 13°C / 11°C | 9°C / 6°C | 18days (149 mm) Wet | 5.7h Fair | 79% Humid | Wet | View Details |
| December | 10°C / 9°C | 6°C / 2°C | 18days (153 mm) Wet | 4.3h Fair | 82% Humid | Wet | View Details |
Frequently Asked Questions
May is typically fair for visiting Jersey, with average highs of 14°C (57°F) and around 10 rainy days. Jersey in May has mild conditions, with highs averaging 13.9°C (57°F) and noticeably cooler mornings. Rain falls on abou
Jersey typically sees around 10 rainy days in May with 49 mm (1.9 in) of total rainfall. An umbrella should suffice.
With highs of 14°C (57°F) and lows of 12°C (54°F) in May, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.
May is not the most favourable month weather-wise in Jersey. Consider visiting during months with milder temperatures or less rainfall for a better experience.
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