Alajuela
Weather by month
Current –

Alajuela Weather in April

Alajuela in April sees high temperatures, with highs around 27°C (81°F) and overnight lows of 17°C (63°F). Rainfall is fairly high at around 78 mm (3.1 in) on average, so pack waterproofs just in case.

Rainfall in Alajuela in April

Historically, the month has about 10 days of rain, averaging 78 mm (3.1 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Alajuela in April

April tends to be one of the excellent months in Alajuela, with 27°C (81°F) in the afternoon and 17°C (63°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Alajuela in April

Expect sunny days throughout the month, with an estimated 241 hours of sunshine. This makes it a pleasant time to visit Alajuela.

If your ideal day consists of dry skies and pleasant temperatures, January, February, March and April typically offer the best circumstances for Alajuela.

Alajuela Temperature in April

Min Temperature
17°C (63°F)
Max Temperature
27°C (81°F)
Chance of Rain
34%
Precipitation
78 mm (3.1 in)
Rainy days
10 days
Humidity
70% *
Sunshine
241 hours *
Percentage Sunshine
*
* Data from: San José, Costa Rica (17 KM, 11 Miles).

Alajuela Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Alajuela - and find the best time to visit.

Daily Historical Temperatures

44-year average (1976-2025)

Based on our historical records, temperatures in Alajuela typically stay consistent throughout April, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 19°C (66°F).

Average temperatures in April

Daily Historical Precipitation

44-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in April

Historical weather records for Alajuela in April

Browse day-by-day weather records for Alajuela spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Alajuela historical weather extremes in April

Based on 31 years of weather observations (1995-2026), these are the most extreme conditions recorded in Alajuela.

  • The hottest April day on record in Alajuela reached 35°C (95°F) (April 5, 1998).
  • The lowest daytime temperature in April was 22°C (72°F), recorded on April 29, 1995.
  • Nighttime temperatures dropped to 12°C (54°F) on April 19, 2011, marking the coldest April night on record.

Best Places in Costa Rica in April

Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in April →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Alajuela in April

Warm but pleasant conditions in Alajuela in April. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Alajuela in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    8/10
  • Outdoor sports
    7/10

Alajuela 3-Day Forecast

More climate data for Alajuela

Popular in April

Where to go in April - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.