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San Sebastián — VanSky 27 (Challenging)

District seat · Retalhuleu Department, Guatemala

25° Rain
VanSky
27
Challenging
Comfortable days: 0 of 7
Feels like
30°C
Wind
10 km/h
Precip
0%
Humidity
97%
UV
—
/
05:45 / 18:39

VanSky index for San Sebastián, Guatemala — 27 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”.

San Sebastián, Guatemala — VanSky 27 out of 100. Difficult — consider alternatives. Ranked #136 of 140 cities in the country (as of 14 July 2026). Temperature 33°C, wind 10 km/h. Solar panels yield 2.3 kWh/day at 400 W — enough for full autonomy.

∅ 7-day average

Sleep
56
24°C
Night temperature
Solar
52
2.3 kWh
for 500W panels • sunny 7.9h
Driving
95
10 km/h
Wind speed (gusts 21)
Condensation
High
97%
Humidity level • Dew point 23.9°C very muggy
Awning
Safe
21 km/h
Max gusts
Air Quality
Poor
76 AQI
PM2.5: 29.5 μg/m³

Upcoming forecast

Tu
14.07
day
33°
night
24°
solar
2.3 kWh
wind
10 km/h
gusts 21 км/ч
VanSky 30
comfort
We
15.07
day
34°
night
24°
solar
2.4 kWh
wind
8 km/h
gusts 22 км/ч
VanSky 25
comfort
Th
16.07
day
33°
night
25°
solar
2.3 kWh
wind
10 km/h
VanSky 26
comfort
Fr
17.07
day
33°
night
24°
solar
2.1 kWh
wind
12 km/h
VanSky 33
comfort
Sa
18.07
day
35°
night
24°
solar
2.4 kWh
wind
10 km/h
VanSky 25
comfort
Su
19.07
day
34°
night
22°
solar
2.6 kWh
wind
17 km/h
gusts 30 км/ч
VanSky 35
comfort
Mo
20.07
day
35°
night
23°
solar
2.4 kWh
wind
8 km/h
gusts 21 км/ч
VanSky 35
comfort

San Sebastián on map

Open full map →
Open-Meteo

Solar — W Panels W

Today's output
Peak hours
5.8h
sunny 7.9h
Usage estimate

Travel recommendations

  • Wind is calm — safe to open the awning and leave it out overnight.
  • High condensation risk — ventilate before sleep and leave a small gap in the roof vent.

Air Quality Today

76
Good
Fair
Moderate
Poor
Danger
76
Poor
Air quality is poor — reduce outdoor time, keep windows closed.
PM2.5
29.5
μg/m³
Moderate
Dust
4
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 Guatemala

San Sebastián ranks 136 of 140 cities. Country average VanSky — 70.

Best
1
Nebaj
98 2
San Juan Cotzal
98 3
Villa Nueva
97 4
San Juan Sacatepéquez
96 5
Santiago Atitlán
96
Harshest
Masagua
13
Ciudad Tecún Umán
15
Tiquisate
15
La Democracia
17
San Sebastián you are here
23
All 140 cities in the country

Frequently Asked Questions

Is it possible to live in a motorhome in San Sebastián?
The weekly VanSky index for San Sebastián is 27 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 San Sebastián?
Solar panel output data for San Sebastián 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 San Sebastián?
The index for San Sebastián 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

Retalhuleu 4 km Nuevo San Carlos 6 km Cuyotenango 9 km San Felipe 9 km El Asintal 9 km El Palmar 12 km San Francisco Zapotitlán 14 km Mazatenango 16 km

Other Tools

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🇬🇹 Guatemala — fuel prices

Updated: 11.07.2026

Gasolina Regular

$1.28 /l

GTQ9.80 · €1.13/l

51 of 133

cheaper than 62% of countries

Midgrade

$1.32 /l

GTQ10.06 · €1.16/l

33 of 92

cheaper than 65% of countries

Diésel

$1.23 /l

GTQ9.40 · €1.08/l

51 of 134

cheaper than 63% of countries

All countries Prices: Guatemala

Popular route

Distance

Fuel cost

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