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La Unión — VanSky 34 (Challenging)

Regional capital · Departamento de La Unión, El Salvador

36° Cloudy
VanSky
34
Challenging
Comfortable days: 0 of 7
Feels like
38°C
Wind
26 km/h
Precip
0%
Humidity
39%
UV
—
/
05:32 / 18:22

VanSky index for La Unión, El Salvador — 34 out of 100 (Challenging). Decide in seconds: temperature, precipitation, wind and solar output. Data refreshed several times a day from real weather observations.

The main score is weekly (7-day average). The “Today” toggle shows the current day, and the region page compares cities “by area”.

La Unión, El Salvador — VanSky 34 out of 100. Difficult — consider alternatives. Ranked #40 of 44 cities in the country (as of 16 July 2026). Temperature 37°C, wind 26 km/h. Solar panels yield 2.4 kWh/day at 400 W — enough for full autonomy.

∅ 7-day average

Sleep
90
25°C
Night temperature
Solar
55
2.4 kWh
for 500W panels • sunny 11.7h
Driving
95
26 km/h
Wind speed (gusts 52)
Condensation
Low
39%
Humidity level • Dew point 20.1°C muggy
Awning
Danger
52 km/h
Max gusts
Air Quality
Fair
38 AQI
PM2.5: 7.7 μg/m³

Upcoming forecast

Th
16.07
day
37°
night
25°
solar
2.4 kWh
wind
26 km/h
gusts 52 км/ч
VanSky 35
comfort
Fr
17.07
day
38°
night
24°
solar
2.6 kWh
wind
26 km/h
gusts 52 км/ч
VanSky 45
comfort
Sa
18.07
day
38°
night
24°
solar
2.6 kWh
wind
23 km/h
gusts 45 км/ч
VanSky 35
comfort
Su
19.07
day
39°
night
24°
solar
2.7 kWh
wind
18 km/h
gusts 36 км/ч
VanSky 35
comfort
Mo
20.07
day
38°
night
25°
solar
2.2 kWh
wind
22 km/h
gusts 48 км/ч
VanSky 35
comfort
Tu
21.07
day
37°
night
22°
solar
2.4 kWh
wind
22 km/h
gusts 43 км/ч
VanSky 35
comfort
We
22.07
day
39°
night
25°
solar
2.7 kWh
wind
24 km/h
gusts 49 км/ч
VanSky 35
comfort

La Unión on map

Open full map →
Open-Meteo

Solar — W Panels W

Today's output
Peak hours
6.1h
sunny 11.7h
Usage estimate

Travel recommendations

  • Strong gusts (51.8 km/h) — do not open the awning, retract it if already out.
  • Extreme heat (36.7°C) — park in shade, use a windshield reflector, drink plenty of water.

Air Quality Today

38
Good
Fair
Moderate
Poor
Danger
38
Fair
Air quality is acceptable — minor pollutants, most people won't notice.
PM2.5
7.7
μg/m³
Good
Dust
10
μg/m³
Good
Pollen
—

Similar by VanSky

Cities with a close score — route alternatives

VanSky Index

A weather comfort index for travel: a 0–100 score. Recalculated daily from live weather data — temperature, rainfall, wind and sun.

80–100 Ideal
60–79 Comfortable
40–59 Acceptable
20–39 Challenging
0–19 Extreme

How it's calculated:

  • Thermal comfort 35%
  • Sunshine 25%
  • Precipitation 25%
  • Wind 15%

Data: Open-Meteo · Updated several times a day

Where the weather is best in El Salvador

La Unión ranks 44 of 44 cities. Country average VanSky — 46.

Best
1
Antiguo Cuscatlán
64 2
Metapán
62 3
Santa Tecla
59 4
Zaragoza
59 5
Santiago de María
59
Harshest
Santa Rosa de Lima
32
La Libertad
29
Acajutla
29
Puerto El Triunfo
27
La Unión you are here
25
All 44 cities in the country

Frequently Asked Questions

Is it possible to live in a motorhome in La Unión?
The weekly VanSky index for La Unión is 34 out of 100 (7-day average). Above 60 is comfortable for parking, below 40 — consider alternatives. Check the 7-day forecast on this page.
What is the solar panel output in La Unión?
Solar panel output data for La Unión is calculated from real peak sun hours. The result is shown in the Solar section — you can adjust it to your panel wattage.
How does VanSky calculate the comfort index for La Unión?
The index for La Unión is calculated using: thermal comfort (temperature + humidity), precipitation, wind, and solar activity. Extreme conditions — frost, storm, heavy rain — drive the score toward zero.

Nearby cities

Santa Rosa de Lima 32 km San Miguel 40 km San Lorenzo Honduras · 44 km Nacaome Honduras · 44 km San Francisco 49 km San Rafael Oriente 55 km Jucuapa 62 km Usulután 65 km

Other Tools

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🇸🇻 El Salvador — fuel prices

Updated: 11.07.2026

Gasolina Regular

$1.17 /l

€1.02 · £0.86/l

44 of 133

cheaper than 68% of countries

Midgrade

$1.25 /l

€1.09 · £0.93/l

25 of 92

cheaper than 74% of countries

Diésel

$1.17 /l

€1.02 · £0.87/l

45 of 134

cheaper than 67% of countries

All countries Prices: El Salvador

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