La Unión weather in April
In April, La Unión sees average daytime highs of 16°C and overnight lows near 7°C, with 109 mm of rain across 10.6 wet days and about 11 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.
Highs ease over the month, from about 18°C in the first days to 15°C by the end. The sky is clear or mostly clear about 21% of the time in April, and the air most often feels dry.
Daylight stretches from about 11 h 36 min at the start of April to 10 h 24 min by month's end. Set against the rest of the year, April is La Unión's 5th-clearest and 12th-windiest month. For the whole year in context, see La Unión's year-round climate.
- Daytime high
- 16°
- 6th warmest
- Overnight low
- 7°
- 7th coldest
- Rainfall
- 109 mm
- 10.6 wet days
- Daylight
- 10 h 54 min
- 8:25 AM – 7:21 PM
- Cloud cover
- 64%
- 5th clearest
- Wind
- 9 km/h
- 12th windiest
- Solar energy
- 2.86 kWh/m²
- Travel score
- 4.9
- out of 10
La Unión is city in Chile.
- Air quality
- High
- PM2.5 29.9 µg/m³ · 2019
- Density
- 12/km²
- people per km²
- Founded
- 1821
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs ease over the month, from about 18°C in the first days to 15°C by the end.
A typical April day in La Unión reaches about 16°C in the afternoon and slips back to 7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 19°C. Set against its neighbours, April runs about 4°C cooler than March and about 3°C warmer than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Avg low (°C) | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 8 |
| 2 | 18 | 8 |
| 3 | 18 | 8 |
| 4 | 18 | 7 |
| 5 | 17 | 7 |
| 6 | 17 | 7 |
| 7 | 17 | 7 |
| 8 | 17 | 7 |
| 9 | 17 | 7 |
| 10 | 17 | 7 |
| 11 | 16 | 7 |
| 12 | 16 | 7 |
| 13 | 16 | 7 |
| 14 | 16 | 7 |
| 15 | 16 | 7 |
| 16 | 16 | 7 |
| 17 | 16 | 7 |
| 18 | 16 | 7 |
| 19 | 15 | 7 |
| 20 | 15 | 7 |
| 21 | 15 | 6 |
| 22 | 15 | 6 |
| 23 | 15 | 6 |
| 24 | 15 | 6 |
| 25 | 15 | 6 |
| 26 | 15 | 6 |
| 27 | 15 | 6 |
| 28 | 15 | 6 |
| 29 | 15 | 6 |
| 30 | 15 | 6 |
La Unión weather by month
How April compares with the rest of the year at a glance. April is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 22° / 10° | 36 | 6 | 14.5 | 7.5 |
| Feb | 22° / 10° | 41 | 5.1 | 13.6 | 7.6 |
| Mar | 20° / 9° | 63 | 7.6 | 12.3 | 6.7 |
| Apr | 16° / 7° | 109 | 10.6 | 11 | 4.9 |
| May | 13° / 6° | 189 | 15.4 | 9.8 | 3.1 |
| Jun | 11° / 4° | 254 | 18.3 | 9.2 | 2.0 |
| Jul | 10° / 4° | 229 | 17.8 | 9.4 | 1.9 |
| Aug | 11° / 4° | 210 | 17.8 | 10.4 | 2.3 |
| Sep | 13° / 5° | 125 | 13.5 | 11.7 | 3.4 |
| Oct | 15° / 6° | 110 | 13.4 | 13.1 | 4.3 |
| Nov | 17° / 8° | 74 | 9.9 | 14.2 | 5.5 |
| Dec | 20° / 9° | 64 | 8 | 14.8 | 6.6 |
Cloud cover in April
The sky is clear or mostly clear about 21% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 47 | 47 | 46 | 45 | 46 | 44 | 43 | 42 | 42 | 41 | 40 | 40 | 40 | 39 | 38 | 39 | 39 | 38 | 39 | 38 | 37 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 34 |
| Cloudier (%) | 53 | 53 | 54 | 55 | 54 | 56 | 57 | 58 | 58 | 59 | 60 | 60 | 60 | 61 | 62 | 61 | 61 | 62 | 61 | 62 | 63 | 63 | 63 | 63 | 64 | 64 | 65 | 65 | 66 | 66 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 47 | 53 |
| 2 | 47 | 53 |
| 3 | 46 | 54 |
| 4 | 45 | 55 |
| 5 | 46 | 54 |
| 6 | 44 | 56 |
| 7 | 43 | 57 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 41 | 59 |
| 11 | 40 | 60 |
| 12 | 40 | 60 |
| 13 | 40 | 60 |
| 14 | 39 | 61 |
| 15 | 38 | 62 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 38 | 62 |
| 19 | 39 | 61 |
| 20 | 38 | 62 |
| 21 | 37 | 63 |
| 22 | 37 | 63 |
| 23 | 37 | 63 |
| 24 | 37 | 63 |
| 25 | 36 | 64 |
| 26 | 36 | 64 |
| 27 | 35 | 65 |
| 28 | 35 | 65 |
| 29 | 34 | 66 |
| 30 | 34 | 66 |
Chance of precipitation in April
La Unión gets around 109 mm of rain over 10.6 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 35% and peaks near 40% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 28 | 29 | 30 | 30 | 31 | 32 | 33 | 34 | 34 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 38 | 38 | 39 | 39 | 39 | 40 | 40 |
| Rain chance (%) | |
|---|---|
| 1 | 28 |
| 2 | 29 |
| 3 | 30 |
| 4 | 30 |
| 5 | 31 |
| 6 | 32 |
| 7 | 33 |
| 8 | 34 |
| 9 | 34 |
| 10 | 35 |
| 11 | 35 |
| 12 | 36 |
| 13 | 36 |
| 14 | 36 |
| 15 | 36 |
| 16 | 36 |
| 17 | 36 |
| 18 | 36 |
| 19 | 36 |
| 20 | 36 |
| 21 | 36 |
| 22 | 36 |
| 23 | 37 |
| 24 | 38 |
| 25 | 38 |
| 26 | 39 |
| 27 | 39 |
| 28 | 39 |
| 29 | 40 |
| 30 | 40 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 97% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 96 | 96 | 96 | 96 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 96 | 96 | 97 | 97 | 97 | 97 | 97 | 97 | 98 |
| Comfortable (%) | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 96 | 4 |
| 2 | 96 | 4 |
| 3 | 96 | 4 |
| 4 | 96 | 4 |
| 5 | 97 | 3 |
| 6 | 97 | 3 |
| 7 | 97 | 3 |
| 8 | 97 | 3 |
| 9 | 97 | 3 |
| 10 | 97 | 3 |
| 11 | 97 | 3 |
| 12 | 97 | 3 |
| 13 | 97 | 3 |
| 14 | 97 | 3 |
| 15 | 97 | 3 |
| 16 | 97 | 3 |
| 17 | 97 | 3 |
| 18 | 97 | 3 |
| 19 | 97 | 3 |
| 20 | 97 | 3 |
| 21 | 97 | 3 |
| 22 | 96 | 4 |
| 23 | 96 | 4 |
| 24 | 97 | 3 |
| 25 | 97 | 3 |
| 26 | 97 | 3 |
| 27 | 97 | 3 |
| 28 | 97 | 3 |
| 29 | 97 | 3 |
| 30 | 98 | 2 |
Wind in April
Winds average 9 km/h in April, the calmest month.
Across April, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
Sunrise & sunset in April
Daylight runs from about 11 h 36 min at the start of April to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 72 minutes over April. Sunrise moves from 8:09 AM to 8:39 AM, and sunset from 7:45 PM to 7:00 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.6 | 11.6 | 11.5 | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.2 | 11.2 | 11.2 | 11.1 | 11.1 | 11.0 | 11.0 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.6 | 10.6 | 10.6 | 10.5 | 10.5 | 10.4 | 10.4 | 10.4 |
| Sunrise (AM) | 8:09 | 8:10 | 8:11 | 8:12 | 8:13 | 8:14 | 8:15 | 8:16 | 8:17 | 8:18 | 8:19 | 8:20 | 8:21 | 8:22 | 8:23 | 8:25 | 8:26 | 8:27 | 8:28 | 8:29 | 8:30 | 8:31 | 8:32 | 8:33 | 8:34 | 8:35 | 8:36 | 8:37 | 8:38 | 8:39 |
| Sunset (PM) | 7:45 | 7:43 | 7:42 | 7:40 | 7:38 | 7:37 | 7:35 | 7:33 | 7:32 | 7:30 | 7:29 | 7:27 | 7:25 | 7:24 | 7:22 | 7:21 | 7:19 | 7:17 | 7:16 | 7:14 | 7:13 | 7:11 | 7:10 | 7:09 | 7:07 | 7:06 | 7:04 | 7:03 | 7:02 | 7:00 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.6 | 8:09 | 7:45 |
| 2 | 11.6 | 8:10 | 7:43 |
| 3 | 11.5 | 8:11 | 7:42 |
| 4 | 11.5 | 8:12 | 7:40 |
| 5 | 11.4 | 8:13 | 7:38 |
| 6 | 11.4 | 8:14 | 7:37 |
| 7 | 11.3 | 8:15 | 7:35 |
| 8 | 11.3 | 8:16 | 7:33 |
| 9 | 11.2 | 8:17 | 7:32 |
| 10 | 11.2 | 8:18 | 7:30 |
| 11 | 11.2 | 8:19 | 7:29 |
| 12 | 11.1 | 8:20 | 7:27 |
| 13 | 11.1 | 8:21 | 7:25 |
| 14 | 11.0 | 8:22 | 7:24 |
| 15 | 11.0 | 8:23 | 7:22 |
| 16 | 10.9 | 8:25 | 7:21 |
| 17 | 10.9 | 8:26 | 7:19 |
| 18 | 10.8 | 8:27 | 7:17 |
| 19 | 10.8 | 8:28 | 7:16 |
| 20 | 10.8 | 8:29 | 7:14 |
| 21 | 10.7 | 8:30 | 7:13 |
| 22 | 10.7 | 8:31 | 7:11 |
| 23 | 10.6 | 8:32 | 7:10 |
| 24 | 10.6 | 8:33 | 7:09 |
| 25 | 10.6 | 8:34 | 7:07 |
| 26 | 10.5 | 8:35 | 7:06 |
| 27 | 10.5 | 8:36 | 7:04 |
| 28 | 10.4 | 8:37 | 7:03 |
| 29 | 10.4 | 8:38 | 7:02 |
| 30 | 10.4 | 8:39 | 7:00 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 2.86 kWh/m².
For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 7.12 kWh/m² in January across the year — April's 2.86 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.6 | 3.6 | 3.5 | 3.5 | 3.4 | 3.3 | 3.3 | 3.2 | 3.1 | 3.1 | 3.0 | 3.0 | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.5 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.6 | Moderate |
| 2 | 3.6 | Moderate |
| 3 | 3.5 | Moderate |
| 4 | 3.5 | Moderate |
| 5 | 3.4 | Moderate |
| 6 | 3.3 | Moderate |
| 7 | 3.3 | Moderate |
| 8 | 3.2 | Moderate |
| 9 | 3.1 | Moderate |
| 10 | 3.1 | Moderate |
| 11 | 3.0 | Moderate |
| 12 | 3.0 | Moderate |
| 13 | 2.9 | Moderate |
| 14 | 2.9 | Moderate |
| 15 | 2.8 | Moderate |
| 16 | 2.8 | Moderate |
| 17 | 2.8 | Moderate |
| 18 | 2.7 | Moderate |
| 19 | 2.7 | Moderate |
| 20 | 2.6 | Moderate |
| 21 | 2.6 | Moderate |
| 22 | 2.5 | Moderate |
| 23 | 2.5 | Moderate |
| 24 | 2.5 | Moderate |
| 25 | 2.4 | Moderate |
| 26 | 2.4 | Moderate |
| 27 | 2.4 | Moderate |
| 28 | 2.3 | Moderate |
| 29 | 2.3 | Moderate |
| 30 | 2.3 | Moderate |
Hazard calendar for La Unión
None of La Unión's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
La Unión's rainy season runs May–September, when most of the year's rain falls.
Is April a good time to visit La Unión?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a reasonable time to visit La Unión for sightseeing.
What to pack for La Unión in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, La Unión sees daytime highs around 16°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 11 days see rain.
Sea temperature near La Unión in April
The nearest coast averages about 13°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 66 km away) is warmest in January at about 14°C and coldest in August near 11°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 14 | 14 | 13 | 13 | 12 | 11 | 11 | 11 | 12 | 13 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 13 | Bracing |
| May | 13 | Bracing |
| Jun | 12 | Bracing |
| Jul | 11 | Bracing |
| Aug | 11 | Bracing |
| Sep | 11 | Bracing |
| Oct | 12 | Bracing |
| Nov | 13 | Bracing |
| Dec | 14 | Bracing |
UV index in La Unión in April
Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in La Unión peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 11 | 7 | 5 | 2 | 2 | 2 | 3 | 4 | 7 | 9 | 12 |
| Level | Extreme | Extreme | Very high | Moderate | Moderate | Low | Low | Moderate | Moderate | High | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 11 | Extreme |
| Mar | 7 | Very high |
| Apr | 5 | Moderate |
| May | 2 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Low |
| Aug | 3 | Moderate |
| Sep | 4 | Moderate |
| Oct | 7 | High |
| Nov | 9 | Very high |
| Dec | 12 | Extreme |
Air quality in La Unión in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in La Unión is worst in March — around 36 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (February, 22 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to La Unión's WHO annual average of 29.9 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 24 | 22 | 36 | 36 | 28 | 26 | 27 | 33 | 36 | 33 | 31 | 27 |
| Level | Moderate | Moderate | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 24 | Moderate |
| Feb | 22 | Moderate |
| Mar | 36 | Poor |
| Apr | 36 | Poor |
| May | 28 | Moderate |
| Jun | 26 | Moderate |
| Jul | 27 | Moderate |
| Aug | 33 | Moderate |
| Sep | 36 | Poor |
| Oct | 33 | Moderate |
| Nov | 31 | Moderate |
| Dec | 27 | Moderate |
Where is La Unión?
La Unión sits at 40.3°S, 73.1°W, 32 m above sea level, in Chile. The nearest listed city is Río Bueno, 12 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 only modest variations in elevation — a maximum elevation change of 80 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 528 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,782 m.
The land around La Unión is covered by cropland (41%), trees (25%) and grassland (20%) within 3 km, trees (44%), cropland (29%) and grassland (25%) within 16 km, and trees (51%) and grassland (21%) within 80 km.
Chile travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 220 V · 50 Hz
- Prices
- ≈ 48% of US
- price level, 2025
- GDP per capita
- $17,995
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 6.3
- per 100k, 2023
- Road deaths
- 14.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 517
- 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 (-40.2931°, -73.0817°, elevation 32 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).