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San Fernando, La Union Weather in December
December in San Fernando, La Union brings high temperatures around 30°C (86°F) during the day, dropping to 26°C (79°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in San Fernando, La Union in December
San Fernando, La Union is in the rainy season in December, with rain on around 5 days and an average of 194 mm (7.6 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in San Fernando, La Union in December
December in San Fernando, La Union brings high temperatures, with highs of 30°C (86°F) and nights around 26°C (79°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for San Fernando, La Union.
San Fernando, La Union Temperature in December
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
18%
Precipitation
194 mm (7.6 in)
Rainy days
5 days
San Fernando, La Union Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Fernando, La Union - and find the best time to visit.
Historical weather records for San Fernando, La Union in December
Browse day-by-day weather records for San Fernando, La Union spanning 21 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Fernando, La Union historical weather extremes in December
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in San Fernando, La Union.
- San Fernando, La Union recorded its highest December temperature of 31°C (88°F) on December 13, 2023.
- San Fernando, La Union experienced its chilliest December day on December 9, 2011, reaching only 26°C (79°F).
- The coldest night in December in San Fernando, La Union was on December 3, 2009, with a minimum of 24°C (75°F).
Best Places in Philippines in December
Find out more about the weather in Philippines and which places have the best travel conditions in this month. See all of Philippines in December →
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 San Fernando, La Union in December
Warm but pleasant conditions in San Fernando, La Union in December. 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. It's going to pour! Pack a good poncho and prepare for very wet conditions.
What To Do in San Fernando, La Union in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
San Fernando, La Union 3-Day Forecast
More climate data for San Fernando, La Union
See the full San Fernando, La Union climate overview or explore weather in Philippines.
Popular in December
Where to go in December - average daytime high across popular destinations.
Manila
31°C (88°F) Davao City30°C (86°F) Angeles City
31°C (88°F) Panglao City
29°C (84°F) Cebu City30°C (86°F) Puerto Princesa30°C (86°F) Boracay29°C (84°F) Mactan29°C (84°F) Bucket list
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