Ten years of climate
Temperature, sea, sun and rain days for every month, measured, not guessed. You see how your trip will feel before you go.

Published 5 October 2026 · HolidayWow editors · Written with AI, numbers checked against our data ·
Alderney beaches suit walkers, families and relaxed coastal breaks, with April offering the driest climate and August bringing the highest air and sea temperatures. Choose your beach days around the tide, keep a flexible island pace and use HolidayWow to map stops, stays and transport.
Alderney offers several styles of beach day, from broad stretches for family activities to quieter coves reached by coastal paths. A relaxed itinerary works well for walkers because a route can combine a morning swim with a cliff walk, a village lunch and an afternoon by the water. Families can keep facilities, picnic spots and easy changes of activity close to their chosen base.
Your best beach depends on the holiday you want. Spend more time near the main settlement when straightforward access and a flexible family routine matter. Choose a coastal path day when scenery and walking are central. For swimming, compare the monthly sea temperature with the air temperature, then leave enough room around the beach session for warm layers and a drink. HolidayWow can place these stops on the map before you travel.
April is the driest month in Alderney's climate record, with 9 rain days, 44 mm of rain and 8 sunshine hours. May brings 9 sunshine hours and 10 rain days, with daytime temperatures reaching 13 °C. These figures make spring useful for beach walks and outdoor days when you want more warmth than the earlier months provide.

July and August suit warm beach plans. July records a daytime temperature of 17 °C, a night temperature of 16 °C and a sea temperature of 15 °C. August reaches 18 °C by day, 17 °C at night and 16 °C in the sea, with 8 sunshine hours. September stays warm at 18 °C by day, while its sea reaches 17 °C, the highest monthly sea temperature in the climate data.

Tides shape the character of an island beach day. Check the tide timetable for your travel dates and decide whether you want a long walk across an exposed strand, time for a swim or time beside the rocks. Morning and evening light can be especially rewarding for photography, while the middle of the day can suit children who need a break from walking.

Build each beach day around one main activity rather than trying to cover the whole coast. You might pair a morning swim with a village stop, or choose a longer coastal walk and save the beach for a late afternoon pause. In HolidayWow, use a relaxed pace with 1 to 2 stops a day, or change one day to a balanced pace with 2 to 3 stops. The plan checker can reorder the route after each edit.

New trip
When, who with, what matters and what's a no. No form, no ten filters. HolidayWow understands the dates, budget, departure point, pace and wishes from one sentence.

New trip
Every idea comes with a total price and a clear answer to why it fits you: weather, flight time, beaches, food, short distances.

Your trip ideas

Sicily
Food · small towns · sea
7 days for 2

Crete
Sea · tavernas · nature
7 days for 2

Mallorca
Sea · comfort · short distances
7 days for 2
Arrival, transfer, check-in, sunset, dinner. Just say “make it cheaper” or “no car hire” and the trip adapts.

Day 1
Arrival
Rain on the way? Then the beach day becomes a day at the market and a museum. Flight status, weather and your day plan in one place.

Day 3 · boat trip
Family days work well when the beach session and the rest of the plan are kept simple. Choose a base near the facilities that suit your group, then add a swim, a picnic or an indoor break rather than packing the day with distant stops. Children can change pace more quickly than adults, so leave room in the route for food, toilets, a rest and an early return to the accommodation.

Summer gives families the strongest combination of air and sea temperatures. August records 18 °C during the day and 16 °C in the sea. A layered approach still makes sense for the island climate: swimwear for the beach, dry clothes for the journey and a warm layer for the return. HolidayWow creates a packing list and checklist from your plan, month and destination climate, keeping the practical items together.

Alderney suits couples who want active days with enough breathing space. A relaxed plan can hold a coastal walk, a beach pause and a meal in a village, while the map shows each stop as a pin. You can drag a stop to another day, swap the beach and make a walking day lighter if the weather or energy calls for it.

Spring and early summer provide a good base for mixed walking and beach days. April records 11 °C by day and 10 °C in the sea, while May reaches 13 °C by day with 11 °C in the sea. Use the map to keep each leg clear, check the current travel time for every stop and give the day a balanced finish near your accommodation.

Start your island planning with the airport that suits your journey. Alderney is 143 miles from London Heathrow, 133 miles from London Gatwick and 184 miles from London Stansted. The map can also compare Bristol, Birmingham, Manchester, Edinburgh and Glasgow through their live distance tokens.
Let HolidayWow build the door to door plan around the connection you select. The route can include the ride to the airport, the flight and the transfer to the first stay, with each stage placed in context. Dates are optional at the start, so you can begin with a month and add dates later to bring weekdays, live weather and live prices into each day card.
Temperature, sea, sun and rain days for every month, measured, not guessed. You see how your trip will feel before you go.

Direct flights, flight times and transfers from 9 UK airports, worked out from your door to the hotel.

Flights, hotel, transfers and experiences in one sum for everyone traveling, with the provider and when the price was checked. No teaser prices.

The right base can make beach days easier. Look for a stay that suits your group, places daily essentials within reach and gives you a comfortable return after coastal paths or several swims. The page shows live partner prices for stays, tours and transport, so current options appear in your plan without relying on an invented estimate.

HolidayWow also provides a document vault for passports, tickets and confirmations, alongside the trip to which they belong. A budget can be kept in your home currency, with price watch for stays and tours and cost splitting for a group. Share the plan through one link, invite comments and voting, and use the Bank Holiday planner to connect public holidays and leave days with a longer island break.

Describe the holiday in one sentence or use voice input. HolidayWow reads the place, month, group, pace and budget from your words, then lays out the days on a map. You can set a relaxed, balanced or packed pace, with 1 to 2 stops, 2 to 3 stops or 3 to 5 stops depending on the rhythm you want.
The trip film plays the route as a short film on the map, showing the flight arc, bases and days. Select a day, stop or film moment and ask the side-panel assistant to change the plan through the same actions as the buttons. The free app lets you download it and plan with these tools, then organise the beach holiday around the live details that matter to your group.
April is the driest month in the climate data, with 9 rain days and 8 sunshine hours. July and August suit warm swimming plans, while September has the highest listed sea temperature at 17 °C. Choose according to whether your priority is walking, swimming or outdoor time.
Yes, families can build beach days around swimming, picnics, short walks and nearby facilities. August records 18 °C by day and 16 °C in the sea. Leave room for breaks and a flexible return to your stay, and use a relaxed pace with 1 to 2 stops when you want an easy rhythm.
The listed sea temperature ranges from 9 °C in March to 17 °C in September. August offers 16 °C, while July records 15 °C. These monthly values help you choose a swimming month, compare a beach holiday with a walking trip and pack suitable layers.
Yes. HolidayWow draws each day as a route, marks every stop with a pin and shows the travel time for each leg. You can edit the route by dragging a stop, swapping a place or making a day lighter, then let the plan checker reorder the day.
Yes, the plan is editable from the start. Change the pace, move a stop to another day, replace a beach with another place or adjust a day for the group. The side-panel assistant can make changes using the same actions as the planner buttons.
Yes. Stays, tours and transport come from partners, with the live price shown in the plan or a button to check the current price. Booking links appear in your language and currency, while the budget, price watch and cost splitting help organise a group holiday.
Describe your trip in one sentence. When, who with and what matters to you.


Where it's warm right now, real fare finds from your airport, bank holiday breaks for your nation and a ready-made trip to make your own.