Temperature
Pleasant by day, brisk at night.
75°Ftypical Aug high
Alderney
Guernsey · Europe
Alderney is most comfortable in summer and autumn. Summers are warm and winters are mild. The wetter months are roughly October to March. Humidity is usually low.
Best time to go
12 mo · Typical year
Temperature range
44°F to 75°F
Rain
11 days/mo
Sunshine
8.8 h/day
Humidity feel
Generally dry
When to visit
Month-by-month fit
Precipitation
Rainfall is lower than usual here.
26%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
11.4 hAug sunshine
Heat & humidity by month
It rarely feels hot or humid.
LowAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
Sea temperature
63°Aug sea temp
More detailIncludes sky and daypart comfort
Cloud cover
Partly cloudy across the month.
44%Aug clear sky
ClearCloud cover
Similar
Similar things to doCapriItalySimilar things to doSaint-TropezFranceSimilar things to doPorto CervoItalySimilar things to doBarcelonaSpain
Want a side-by-side climate view? Compare Alderney with Capri.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 11, 2026
Data & methodology