Santa Clara del Mar in Summer
In summer (December, January and February), Santa Clara del Mar sees average daytime highs around 24°C and overnight lows near 16°C, with 225 mm of rain over about 24 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 24°C. The sky is clear or mostly clear about 47% of the time across summer, and the air most often feels dry.
Summer is Santa Clara del Mar's best season of the year to visit on our travel score. For the whole year in context, see Santa Clara del Mar's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 225 mm
- 24 wet days
- Avg wind
- 18 km/h
- Travel score
- 7.4
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Santa Clara del Mar in Summer
Across summer, daytime highs hold fairly steady around 24°C.
A typical summer day in Santa Clara del Mar reaches about 24°C and drops to 16°C overnight. The warmest of the three months is January, the coolest December.
Santa Clara del Mar 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 | 25° / 17° | 81 | 8.5 | 14.3 | 7.4 |
| Feb | 24° / 17° | 74 | 7.6 | 13.5 | 7.4 |
| Mar | 22° / 15° | 72 | 7.9 | 12.3 | 7.2 |
| Apr | 19° / 12° | 80 | 8 | 11.1 | 6.5 |
| May | 16° / 10° | 48 | 6.5 | 10 | 5.3 |
| Jun | 13° / 7° | 59 | 6.2 | 9.4 | 3.9 |
| Jul | 12° / 6° | 53 | 6.4 | 9.6 | 3.4 |
| Aug | 13° / 7° | 60 | 6.8 | 10.5 | 4.1 |
| Sep | 15° / 8° | 60 | 7.1 | 11.7 | 4.7 |
| Oct | 17° / 10° | 83 | 9.3 | 13 | 5.7 |
| Nov | 20° / 12° | 83 | 9.4 | 14 | 6.6 |
| Dec | 23° / 15° | 70 | 8 | 14.6 | 7.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 47% of the time across summer.
Chance of precipitation in Summer
Santa Clara del Mar gets around 225 mm of rain over 24 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 18 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 24 min in early December to 13 hours 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 7.0 kWh/m².
Is summer a good time to visit Santa Clara del Mar?
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 one of the better times to visit Santa Clara del Mar for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Santa Clara del Mar in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Santa Clara del Mar sees daytime highs around 24°C and nights near 16°C. Pack sun protection. Worth having: light clothes and rain gear. About 24 days see rain.
Sea temperature near Santa Clara del Mar in Summer
The nearest coast averages about 19°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in February at about 21°C and coldest in August near 10°C.
It's comfortable for a long swim from Jan 21 to Mar 13 — about 1.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 21 | 20 | 18 | 15 | 13 | 11 | 10 | 11 | 13 | 15 | 18 |
| Comfort | Cool | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Cool |
| Feb | 21 | Refreshing |
| Mar | 20 | Refreshing |
| Apr | 18 | Cool |
| May | 15 | Cool |
| Jun | 13 | Bracing |
| Jul | 11 | Bracing |
| Aug | 10 | Bracing |
| Sep | 11 | Bracing |
| Oct | 13 | Bracing |
| Nov | 15 | Cool |
| Dec | 18 | Cool |
UV index in Santa Clara del Mar in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Clara del Mar peaks around December 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 11 | 8 | 5 | 3 | 2 | 2 | 3 | 5 | 7 | 10 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Low | Moderate | Moderate | Moderate | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 8 | Very high |
| Apr | 5 | High |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | Moderate |
| Oct | 7 | Very high |
| Nov | 10 | Extreme |
| Dec | 12 | Extreme |
Where is Santa Clara del Mar?
Santa Clara del Mar sits at 37.8°S, 57.5°W, 10 m above sea level, in Argentina. The nearest listed city is Mar del Plata, 19 km away.
Topography around Santa Clara del Mar
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Clara del Mar.
Within 3 km, the terrain around Santa Clara del Mar has only modest variations in elevation — a maximum elevation change of 35 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 52 m; within 80 km, significant variations in elevation — a maximum elevation change of 384 m.
The land around Santa Clara del Mar is covered by water (30%), grassland (25%) and cropland (21%) within 3 km, water (42%), cropland (27%) and grassland (24%) within 16 km, and grassland (34%), water (32%) and cropland (29%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- 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 Santa Clara del Mar (-37.8344°, -57.5075°, elevation 10 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.