Zarumilla in Summer
In summer (December, January and February), Zarumilla sees average daytime highs around 30°C and overnight lows near 23°C, with 299 mm of rain over about 38 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 3% of the time across summer, and the air most often feels oppressive.
Summer is Zarumilla's weakest season of the year to visit on our travel score. Zarumilla has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Zarumilla's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 299 mm
- 38 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Zarumilla in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Zarumilla reaches about 30°C and drops to 23°C overnight. The warmest of the three months is January, the coolest December.
How summer really feels in Zarumilla
Once humidity and wind are folded in, summer brings about 78 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Zarumilla weather by month
How the three summer months (December, January and February) 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 | 30° / 24° | 84 | 13.4 | 12.2 | 4.2 |
| Feb | 30° / 24° | 177 | 18.3 | 12.1 | 3.5 |
| Mar | 30° / 24° | 204 | 17.5 | 12 | 3.7 |
| Apr | 30° / 24° | 115 | 12.9 | 11.9 | 4.2 |
| May | 30° / 23° | 48 | 7.1 | 11.8 | 5.1 |
| Jun | 29° / 22° | 10 | 2.2 | 11.8 | 6.3 |
| Jul | 28° / 21° | 4 | 1.1 | 11.8 | 7.3 |
| Aug | 28° / 21° | 1 | 0.2 | 11.9 | 7.7 |
| Sep | 28° / 21° | 6 | 1.2 | 12 | 7.0 |
| Oct | 29° / 21° | 8 | 2 | 12.1 | 6.3 |
| Nov | 29° / 22° | 16 | 3.5 | 12.2 | 5.9 |
| Dec | 30° / 23° | 37 | 6.2 | 12.2 | 5.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 3% of the time across summer.
Chance of precipitation in Summer
Zarumilla gets around 299 mm of rain over 38 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 min in early December to 12 h 06 min by late February. 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 5.0 kWh/m².
Hazard calendar for Zarumilla
In summer, Zarumilla overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Zarumilla's monsoon runs February–April, when most of the year's rain falls.
Is summer a good time to visit Zarumilla?
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 reasonable time to visit Zarumilla for sightseeing.
What to pack for Zarumilla in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Zarumilla sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 38 days see rain.
Sea temperature near Zarumilla in Summer
The nearest coast averages about 25°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 18 km away) is warmest in March at about 27°C and coldest in September near 23°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 26 | 27 | 26 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 27 | Warm |
| Apr | 26 | Warm |
| May | 26 | Warm |
| Jun | 25 | Warm |
| Jul | 24 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 23 | Refreshing |
| Nov | 24 | Refreshing |
| Dec | 25 | Warm |
UV index in Zarumilla in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Zarumilla peaks around February 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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) | 14 | 15 | 15 | 12 | 12 | 10 | 10 | 11 | 12 | 13 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Zarumilla 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 Zarumilla is worst in December — around 29 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (August, 9 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) | 15 | 14 | 14 | 15 | 15 | 15 | 12 | 9 | 10 | 14 | 27 | 29 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 14 | Moderate |
| Mar | 14 | Moderate |
| Apr | 15 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 12 | Moderate |
| Aug | 9 | Good |
| Sep | 10 | Good |
| Oct | 14 | Moderate |
| Nov | 27 | Moderate |
| Dec | 29 | Moderate |
Where is Zarumilla?
Zarumilla sits at 3.5°S, 80.3°W, 14 m above sea level, in Peru. The nearest listed city is Huaquillas, 6.0 km away.
Topography around Zarumilla
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zarumilla.
Within 3 km, the terrain around Zarumilla has only modest variations in elevation — a maximum elevation change of 29 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 116 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,804 m.
The land around Zarumilla is covered by grassland (49%) and artificial surfaces (21%) within 3 km, water (28%) and shrubs (27%) within 16 km, and water (38%) and trees (35%) within 80 km.
Peru travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 220 V · 60 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $9,684
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 49%
- of population, 2024
- Homicide rate
- 8.6
- per 100k, 2021
- Road deaths
- 13.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 519
- 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 Zarumilla (-3.5031°, -80.2731°, elevation 14 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.