La Unión in Spring
In spring (March, April and May), La Unión sees average daytime highs around 23°C and overnight lows near 14°C, with 972 mm of rain over about 77 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across spring, daytime highs hold fairly steady around 23°C. The sky is clear or mostly clear about 1% of the time across spring, and the air most often feels humid.
Spring is La Unión's 3rd-best season to visit on our travel score. For the whole year in context, see La Unión's year-round climate.
- Avg daytime high
- 23°C
- 2nd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 972 mm
- 77 wet days
- Avg wind
- 3 km/h
- Travel score
- 4.1
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in La Unión in Spring
Across spring, daytime highs hold fairly steady around 23°C.
A typical spring day in La Unión reaches about 23°C and drops to 14°C overnight. The warmest of the three months is May, the coolest March.
La Unión weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 23° / 14° | 161 | 22.3 | 11.7 | 4.8 |
| Feb | 23° / 14° | 190 | 22.5 | 11.8 | 4.4 |
| Mar | 23° / 14° | 309 | 26.9 | 12 | 4.1 |
| Apr | 23° / 15° | 352 | 25.5 | 12.1 | 4.0 |
| May | 24° / 15° | 311 | 24.8 | 12.3 | 4.3 |
| Jun | 24° / 14° | 130 | 16.9 | 12.3 | 5.3 |
| Jul | 25° / 14° | 85 | 11.8 | 12.3 | 6.1 |
| Aug | 25° / 14° | 111 | 13.1 | 12.2 | 5.8 |
| Sep | 24° / 14° | 216 | 21.6 | 12 | 4.7 |
| Oct | 23° / 14° | 367 | 28 | 11.9 | 3.8 |
| Nov | 23° / 14° | 402 | 28.8 | 11.7 | 3.6 |
| Dec | 23° / 14° | 243 | 24.5 | 11.7 | 4.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 1% of the time across spring.
Chance of precipitation in Spring
La Unión gets around 972 mm of rain over 77 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 3 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 54 min in early March to 12 h 18 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.1 kWh/m².
Is spring a good time to visit La Unión?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit La Unión for sightseeing.
What to pack for La Unión in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, La Unión sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 77 days see rain.
UV index in La Unión in Spring
Clear-sky midday UV across spring averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in La Unión peaks around February 21 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 12 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 16 | 16 | 12 | 14 | 12 | 13 | 13 | 14 | 14 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 16 | Extreme |
| Mar | 16 | Extreme |
| Apr | 12 | Extreme |
| May | 14 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in La Unión in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in La Unión is worst in March — around 33 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 17 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 25 | 33 | 24 | 20 | 18 | 18 | 21 | 18 | 17 | 17 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 25 | Moderate |
| Mar | 33 | Moderate |
| Apr | 24 | Moderate |
| May | 20 | Moderate |
| Jun | 18 | Moderate |
| Jul | 18 | Moderate |
| Aug | 21 | Moderate |
| Sep | 18 | Moderate |
| Oct | 17 | Moderate |
| Nov | 17 | Moderate |
| Dec | 18 | Moderate |
Where is La Unión?
La Unión sits at 6.0°N, 75.4°W, 2,475 m above sea level, in Colombia. The nearest listed city is La Ceja, 10 km away.
Topography around La Unión
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Unión.
Within 3 km, the terrain around La Unión has significant variations in elevation — a maximum elevation change of 274 m around an average of 2,485 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,898 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,673 m.
The land around La Unión is covered by grassland (68%) and trees (23%) within 3 km, trees (56%) and grassland (41%) within 16 km, and trees (66%) and grassland (33%) within 80 km.
Colombia travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 / 240 V · 60 Hz
- Prices
- ≈ 38% of US
- price level, 2025
- GDP per capita
- $8,562
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 74%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 15.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 480
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for La Unión (5.9743°, -75.3619°, elevation 2,475 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.