La Union (San Juan La Union) weather in April

April in La Union: sweltering, a little rain, with muggy air — fine if you can take 37°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

La Union🇵🇭 Philippines · Philippines · Beach90
  1. 85Jan
  2. 89Feb
  3. 93Mar
  4. 90Apr
  5. 75May
  6. 63Jun
  7. 57Jul
  8. 55Aug
  9. 60Sep
  10. 66Oct
  11. 78Nov
  12. 81Dec

#2 of 12 months in La Union · #162 of 1413 destinations to visit in April · comfort 90/100 (tier S)

Days
30°C
Nights
26°C
Wet days
11
Sun
11.7 h
Humidity
79%
Daylight
13 h
La Union, Philippines
Photo: Luzviminda7641 · CC0

Traveller notes on La Union in April

Other months in La Union

Forum posters describe September as one of the wettest months across the Philippines, second only to October on average, with typhoon season adding real variability - a typhoon can bring rain for days, while an ordinary rainy stretch typically means a sharp, short downpour rather than an all-day event. Posters describe a typical 10-day window as mixing a few bright, sunny days with a few genuinely torrential ones, and note forecasts only become reliable a few days out given how quickly conditions shift. Posters describing La Union specifically highlight it as a well-established surf destination with newer resort development, implying the wave conditions tied to this wetter, windier season can actually work in a surfer's favor. Posters generally rate September as genuinely wet and typhoon-prone but still very visitable for La Union with flexible plans, particularly appealing for surf-focused travelers.
Tripadvisor community · September · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe the La Union/Baler surf season as running roughly October through March, placing March near the tail end of the best window rather than deep in the off-season - posters call the weather generally fine for a March trip, though peak conditions (November-February) are technically just behind. La Union is repeatedly named as the Philippines' second-most-popular surf destination, drawing a crowd that skews heavily toward surfers rather than general beachgoers, with decent snorkeling spots nearby as a secondary activity. Wave conditions this time of year are described as generally beginner-friendly, a pattern posters say tends to hold from the December low-season stretch through into early spring.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗

Add your own note from La Union's card on the map.

La Union climate normals — April

Daytime high30°C / 87°F🔥 sweltering
Nighttime low26°C / 78°F
Feels like (high)37°C / 99°F
Sea temperature29°C / 85°F♨️ bath-warm
Rainfall42 mm / 1.7 in🌦 some rain
Rainy days11 days
Humidity79%💦 very humid
Dew point24°C / 75°F
Sunshine11.7 h/day
Daylight12.5 h
Wind14 km/h / 8 mph
Air quality (US AQI)63🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in La Union in April

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsSummer beach crush, Holy Week, End-of-school-year break in Philippines(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for La Union's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherLa Union's weather peaks February–April, best around March.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in La Union in April

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Summer beach crush

    15 Mar – 31 May · usuallySchool holidaysCrowdedBook early

    Four hours from Manila on the expressway, so the Urbiztondo strip is bumper to bumper at weekends and the surf schools run flat out on knee-high water.

  • Holiday

    Holy Week

    20 Mar – 20 Apr · usuallyCrowdedBook early

    The single busiest weekend of the year here; the beach road is a car park and rooms in San Juan are gone weeks before. Source ↗

What's on around the world in April →

Nearby, and something's on

Within 300 km of La Union — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is La Union?

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La Union in April — FAQ

Is April a good time to visit La Union?
April in La Union: sweltering, a little rain, with muggy air — fine if you can take 37°C afternoons. It ranks #2 of 12 months for La Union on SeasonMap's comfort score (90/100).
What is the weather like in La Union in April?
In April, La Union averages a daily high of 30.3°C and a low of 25.7°C, with about 42.4 mm of rain over roughly 11.4 rainy days.
What is the air quality in La Union in April?
La Union has a mean US Air Quality Index of about 63 in April.

Within 300 km: Manila's Holy Week around 20 Mar – 20 Apr.