Your April weather guide
MildWeather in Costa Blanca in April
April is a good time for Costa Blanca if you want mild days outdoors rather than a hot beach holiday. Daytime highs average around 20°C, but nights fall to about 12°C, so layers still matter. The sea is only around 16°C, making swimming a cold prospect. For a UK traveller, the appeal is warmer daytime weather without regular summer heat; the catch is cool evenings and some rain.
Long-term climate averages for Alicante, not a forecast · 1991-2020
Costa Blanca, month by month
Your snapshot
At a glance
The useful details for Alicante.
- Average daytime high
- 19.7°C
- 9 in 10 days stay below 23°C
- Average night-time low
- 11.9°C
- coldest 10% of nights: 9°C or lower
- Compared with London
- +6.2°C
- London averages 13.5°C in April
- Sea temperature
- 15.7°C
- year to year: 15°C to 16°C
- Sunshine per day (est.)
- 7.3h
- 56% of 13.0 h of daylight
- Rainy days (1 mm+)
- 6
- 43 mm over the month
- Humidity
- 66%
- Days over 25°C
- 3%
- none over 30°C
- Record high 1991-2020
- 31.0°C
- 2011-04-09
- Record low 1991-2020
- 5.2°C
- 2013-04-07
- Flight from London
- ≈ 2 h 30 min
- 1424 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How April compares
April is the 7th warmest month of the year in Costa Blanca. Within Spain it is 34th of 87 (Spain in April). Against London's average high of 13.5°C in April, Costa Blanca is 6.2°C warmer by day and 6.8°C warmer at night.
Daytime and night-time in April
The typical April day in Costa Blanca peaks at 19.7°C, but that is an average: the warmest 10% of days reach 23.1°C or more. Roughly 1 in 37 days top 25°C. Nights average 11.9°C; one night in ten drops to 9.3°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest April day here reached 31.0°C (2011-04-09) and the coldest night 5.2°C (2013-04-07).
Rain in April
Some rain (4-8 rainy days): about 6 days with 1 mm or more, 43 mm in total. Year to year it varies a lot - the wettest April was 2019 with 173 mm, the driest 2008 with 2 mm. Humidity averages 66%.
Sea temperature in April
The sea averages 15.7°C - too cold for most (under 18°c). Depending on the year it ranges from 14.9°C to 16.4°C. For the warmest sea here, come in August (26.4°C).
Sunshine and daylight
Around 7.3 hours of sunshine a day (estimated from cloud cover), 13.0 hours of daylight: the sun rises about 07:26 and sets about 20:38 local time in mid-April. Average cloud cover is 44%.
Is April a good time to visit Costa Blanca?
April is not the strongest month here: mild days. The best months for Costa Blanca on our scoring are July, June, August; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Comfortable days, but pack for cooler evenings
April suits travellers who prefer being outdoors without strong heat. A light top may be enough during the warmer part of the day, but bring a jumper and a jacket for evenings rather than packing only summer clothes. The warmest days reach 23.1°C or more, so there can be a taste of warmer weather, though that is not the everyday expectation. At the cooler end, nights can fall to 9.3°C or below. If you plan to sit outside after dark, those extra layers will be useful. Keep plans flexible around the day's forecast, and treat warm afternoons as an opportunity rather than a promise.
Sunshine for outdoor plans, cold water for swimming
There is about 7.3 hours of sunshine within 13.0 hours of daylight, giving you scope to spend time outside without expecting clear skies throughout the day. Rain falls on about 6 days in April, so a light waterproof and a flexible plan are sensible. That does not make April a poor choice, but it does argue against a holiday that depends entirely on dry weather. The bigger limitation for beach-focused travellers is the sea: at 15.7°C on average, it is cold rather than comfortably swimmable. Time by the water is a more realistic priority than long swims. Choose April for mild outdoor weather, not for dependable beach heat or warm water.
A little perspective
Costa Blanca through the year
April is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 15.0°C | 8.1°C | 14.6°C | 5.5 | 46 | 6 | 0% |
| February | 15.5°C | 8.3°C | 13.8°C | 6.2 | 35 | 6 | 0% |
| March | 17.6°C | 10.0°C | 14.3°C | 6.7 | 41 | 6 | 1% |
| AprilSelected | 19.7°C | 11.9°C | 15.7°C | 7.3 | 43 | 6 | 3% |
| May | 22.7°C | 15.0°C | 18.3°C | 8.2 | 31 | 5 | 21% |
| Junebest | 26.9°C | 18.9°C | 22.0°C | 10.6 | 13 | 2 | 75% |
| Julybest | 29.6°C | 21.8°C | 25.1°C | 11.9 | 6 | 1 | 98% |
| Augustbest | 30.1°C | 22.5°C | 26.4°C | 10.0 | 17 | 3 | 98% |
| September | 26.9°C | 20.0°C | 24.9°C | 7.2 | 60 | 7 | 76% |
| October | 23.1°C | 16.4°C | 22.1°C | 6.0 | 60 | 7 | 25% |
| November | 18.5°C | 12.1°C | 18.9°C | 5.4 | 55 | 7 | 2% |
| December | 15.7°C | 9.2°C | 16.1°C | 5.0 | 48 | 6 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in April
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Costa Blanca in April FAQs
Plain answers, grounded in the averages.
Is Costa Blanca hot in April?
Costa Blanca is mild in April: the average daytime high is 19.7°C and nights average 11.9°C. Roughly 1 in 37 April days reach 25°C.
Can you swim in the sea in Costa Blanca in April?
The sea around Costa Blanca averages 15.7°C in April, which is cold for swimming without a wetsuit. Between 1991 and 2020 it ranged from 15°C to 16°C depending on the year.
How much does it rain in Costa Blanca in April?
Costa Blanca sees about 6 rainy days (1 mm or more) and 43 mm of rain in a typical April. The wettest April between 1991 and 2020 was 2019 (173 mm) and the driest was 2008 (2 mm).
How sunny is Costa Blanca in April?
Costa Blanca gets around 7.3 hours of sunshine a day in April out of 13.0 hours of daylight (estimated from average cloud cover).
How does Costa Blanca compare with the UK in April?
Costa Blanca is on average 6.2°C warmer than London by day in April (19.7°C against 13.5°C).
What is the hottest April on record in Costa Blanca?
Between 1991 and 2020 the hottest April day in Costa Blanca reached 31.0°C on 2011-04-09, and the coldest night dropped to 5.2°C on 2013-04-07.
How much warmer is Costa Blanca than London in April?
The average daytime high is 19.7°C, compared with 13.5°C in London, a difference of 6.2°C. That makes April a reasonable choice for warmer daytime weather, but Costa Blanca's average night low of 11.9°C still calls for layers.
Can I expect proper summer heat in April?
Not reliably. Only 3% of April days reach 25°C, so mild weather is a better expectation than summer heat. If hotter conditions are your priority, June, July and August are better months to consider here.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Alicante. Sea temperature from the nearest 5 km sea cell, 3 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C