La Unión department Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in La Unión department, El Salvador in December.

🔎
La Unión

Planning a journey to La Unión department, El Salvador this December and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in La Unión department in December

La Unión department, El Salvador is a region in El Salvador. December in La Unión department generally has very warm temperatures, with almost no precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 32°C (90°F) and nighttime temperatures around 24°C (75°F) in La Unión. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

For specific regional insights in La Unión department, El Salvador, refer to the map provided below.

Precipitation

December is a very dry month with an average rainfall of around 3.6 mm (0.1 in) in La Unión.

Explore La Unión department by month

Pick a month to see the average temperature, rainfall and sunshine in La Unión department — and find the best time to visit. (based on La Unión)

January32°C (90°F) February33°C (91°F) March33°C (91°F) April33°C (91°F) May33°C (91°F) June32°C (90°F) This monthJuly33°C (91°F) August33°C (91°F) September31°C (88°F) October31°C (88°F) November32°C (90°F) December32°C (90°F)
Best Time to Visit La Unión department →

Best Places to Visit in La Unión department in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across La Unión department.

Conditions Temperatures Precipitation
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).

Popular Destinations in La Unión department

What is the weather like in December for the most popular destinonation in La Unión department, El Salvador?

La Unión

In December La Unión generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
50 mm (2 in)
3.6 mm (0.1 in)
1.4 mm (0.1 in)
Monthly rainy days
7 days
4 days
2 days
Weather conditions
pleasant
perfect
perfect
Climate in La Unión →

Is your destination not in the list? Have a look at all destinations in La Unión department, in El Salvador.

In our records: El Salvador December extremes

Notable December records observed across cities in El Salvador in our climate database (1995 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in El Salvador dropped to 8°C (46°F) in Santa Ana on December 16, 2010.

La Unión department weather in December: frequently asked questions

What is the weather like in La Unión department, El Salvador in December?

December in La Unión department, El Salvador brings pleasant weather. In La Unión, daytime temperatures are typically around 32°C (90°F) and nighttime lows hover near 24°C (75°F).

What is the average temperature in La Unión department, El Salvador in December?

In La Unión, the average daytime high in December is 32°C (90°F), while nighttime temperatures drop to around 24°C (75°F).

Does La Unión department, El Salvador get a lot of rain in December?

December is on the drier side in La Unión department, El Salvador. La Unión averages only about 3.6 mm (0.1 in), with most days staying dry.

Is December a Good Time to Visit La Unión department, El Salvador?

We consider December to be one of the best times to travel to La Unión department, El Salvador. Typically, the climate in La Unión is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, January and December provide pleasant weather in La Unión. In contrast, May, June, July, August, September and October tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in La Unión department.

Weather and climate has detailed information for every country in the world. Are you going to El Salvador? Get detailed historical weather averages for many cities in El Salvador.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

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

The top 5 unexplored rainforests in Central America

Dive into Central America's top 5 hidden rainforests for an unparalleled journey through vibrant wildlife and diverse landscapes.
Must visit in El Salvador →