Momostenango in Summer
In summer (June, July and August), Momostenango sees average daytime highs around 20°C and overnight lows near 12°C, with 791 mm of rain over about 82 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 20°C. The sky is clear or mostly clear about 3% of the time across summer, and the air most often feels dry.
Summer is Momostenango's weakest season of the year to visit on our travel score. For the whole year in context, see Momostenango's year-round climate.
- Avg daytime high
- 20°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 791 mm
- 82 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.6
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Momostenango in Summer
Across summer, daytime highs hold fairly steady around 20°C.
A typical summer day in Momostenango reaches about 20°C and drops to 12°C overnight. The warmest of the three months is June, the coolest July.
Momostenango weather by month
How the three summer months (June, July and August) 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 | 19° / 9° | 16 | 5 | 11.2 | 7.2 |
| Feb | 21° / 9° | 16 | 4.1 | 11.5 | 7.6 |
| Mar | 22° / 10° | 42 | 9.7 | 11.9 | 7.0 |
| Apr | 22° / 11° | 94 | 17 | 12.3 | 5.7 |
| May | 22° / 12° | 258 | 27 | 12.7 | 4.0 |
| Jun | 20° / 12° | 344 | 28.4 | 12.9 | 3.4 |
| Jul | 20° / 11° | 203 | 25.7 | 12.8 | 3.9 |
| Aug | 20° / 12° | 244 | 27.8 | 12.5 | 3.6 |
| Sep | 20° / 12° | 322 | 29.3 | 12.1 | 3.3 |
| Oct | 20° / 12° | 231 | 26.3 | 11.7 | 3.8 |
| Nov | 19° / 10° | 66 | 13.7 | 11.3 | 5.6 |
| Dec | 19° / 9° | 27 | 6.2 | 11.1 | 6.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 3% of the time across summer.
Chance of precipitation in Summer
Momostenango gets around 791 mm of rain over 82 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 48 min in early June to 12 h 18 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.4 kWh/m².
Hazard calendar for Momostenango
In summer, Momostenango overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Momostenango's rainy season runs May–October, when most of the year's rain falls.
Is summer a good time to visit Momostenango?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Momostenango.
What to pack for Momostenango in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Momostenango sees daytime highs around 20°C and nights near 12°C. Pack rain gear. Worth having: sun protection. About 82 days see rain.
UV index in Momostenango in Summer
Clear-sky midday UV across summer 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 Momostenango peaks around April 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 10 (very high).
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) | 10 | 14 | 15 | 16 | 13 | 14 | 14 | 14 | 13 | 12 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 16 | Extreme |
| May | 13 | Extreme |
| Jun | 14 | Extreme |
| Jul | 14 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 10 | Very high |
Air quality in Momostenango in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Momostenango is worst in May — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 23 | 22 | 25 | 34 | 34 | 23 | 23 | 22 | 23 | 23 | 23 | 25 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 23 | Moderate |
| Feb | 22 | Moderate |
| Mar | 25 | Moderate |
| Apr | 34 | Moderate |
| May | 34 | Moderate |
| Jun | 23 | Moderate |
| Jul | 23 | Moderate |
| Aug | 22 | Moderate |
| Sep | 23 | Moderate |
| Oct | 23 | Moderate |
| Nov | 23 | Moderate |
| Dec | 25 | Moderate |
Where is Momostenango?
Momostenango sits at 15.0°N, 91.4°W, 2,215 m above sea level, in Guatemala. The nearest listed city is San Francisco El Alto, 12 km away.
Topography around Momostenango
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Momostenango.
Within 3 km, the terrain around Momostenango has significant variations in elevation — a maximum elevation change of 442 m around an average of 2,252 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,670 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,169 m.
The land around Momostenango is covered by trees (83%) within 3 km, trees (69%) within 16 km, and trees (80%) within 80 km.
Guatemala travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 43% of US
- price level, 2025
- GDP per capita
- $6,598
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 49%
- of population, 2024
- Homicide rate
- 23.4
- per 100k, 2023
- Road deaths
- 22.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 510
- 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 Momostenango (15.0444°, -91.4086°, elevation 2,215 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.