San Lorenzo weather in December
In December, San Lorenzo sees average daytime highs of 31°C and overnight lows near 20°C, with 160 mm of rain across 10 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels muggy.
Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is San Lorenzo's 6th-clearest and 7th-windiest month. For the whole year in context, see San Lorenzo's year-round climate.
- Daytime high
- 31°
- 2nd warmest
- Overnight low
- 20°
- 10th coldest
- Rainfall
- 160 mm
- 10 wet days
- Daylight
- 13 h 48 min
- 5:58 AM – 7:45 PM
- Cloud cover
- 49%
- 6th clearest
- Wind
- 13 km/h
- 7th windiest
- Solar energy
- 6.93 kWh/m²
- Travel score
- 4.6
- out of 10
San Lorenzo is human settlement in Argentina.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs climb over the month, from about 30°C in the first days to 32°C by the end.
A typical December day in San Lorenzo reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 35°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Avg low (°C) | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 19 |
| 2 | 30 | 19 |
| 3 | 30 | 19 |
| 4 | 30 | 19 |
| 5 | 30 | 19 |
| 6 | 30 | 19 |
| 7 | 30 | 20 |
| 8 | 30 | 20 |
| 9 | 31 | 20 |
| 10 | 31 | 20 |
| 11 | 31 | 20 |
| 12 | 31 | 20 |
| 13 | 31 | 20 |
| 14 | 31 | 20 |
| 15 | 31 | 20 |
| 16 | 31 | 20 |
| 17 | 31 | 20 |
| 18 | 31 | 21 |
| 19 | 31 | 21 |
| 20 | 31 | 21 |
| 21 | 32 | 21 |
| 22 | 32 | 21 |
| 23 | 32 | 21 |
| 24 | 32 | 21 |
| 25 | 32 | 21 |
| 26 | 32 | 21 |
| 27 | 32 | 21 |
| 28 | 32 | 21 |
| 29 | 32 | 21 |
| 30 | 32 | 21 |
| 31 | 32 | 21 |
How December really feels in San Lorenzo
Once humidity and wind are folded in, December averages 18 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Lorenzo weather by month
How December compares with the rest of the year at a glance. December is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 32° / 22° | 148 | 11 | 13.6 | 4.1 |
| Feb | 31° / 21° | 136 | 10.1 | 13 | 4.5 |
| Mar | 29° / 20° | 143 | 10.2 | 12.2 | 5.4 |
| Apr | 26° / 17° | 168 | 9.8 | 11.3 | 6.8 |
| May | 23° / 14° | 112 | 7.8 | 10.6 | 7.2 |
| Jun | 20° / 12° | 80 | 7.8 | 10.2 | 6.7 |
| Jul | 20° / 10° | 71 | 7.2 | 10.4 | 7.0 |
| Aug | 23° / 11° | 75 | 6.7 | 11 | 7.6 |
| Sep | 25° / 13° | 109 | 8.4 | 11.8 | 7.4 |
| Oct | 27° / 16° | 191 | 11 | 12.7 | 6.5 |
| Nov | 29° / 18° | 160 | 9 | 13.4 | 5.9 |
| Dec | 31° / 20° | 160 | 10 | 13.8 | 4.6 |
Cloud cover in December
The sky is clear or mostly clear about 43% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 40%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 60 | 59 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 61 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 59 | 59 | 59 | 58 | 58 | 58 | 57 | 57 |
| Cloudier (%) | 40 | 41 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 41 | 41 | 41 | 42 | 42 | 42 | 43 | 43 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 60 | 40 |
| 2 | 59 | 41 |
| 3 | 60 | 40 |
| 4 | 60 | 40 |
| 5 | 60 | 40 |
| 6 | 60 | 40 |
| 7 | 60 | 40 |
| 8 | 60 | 40 |
| 9 | 60 | 40 |
| 10 | 60 | 40 |
| 11 | 61 | 39 |
| 12 | 61 | 39 |
| 13 | 61 | 39 |
| 14 | 61 | 39 |
| 15 | 62 | 38 |
| 16 | 62 | 38 |
| 17 | 62 | 38 |
| 18 | 62 | 38 |
| 19 | 61 | 39 |
| 20 | 61 | 39 |
| 21 | 61 | 39 |
| 22 | 61 | 39 |
| 23 | 61 | 39 |
| 24 | 59 | 41 |
| 25 | 59 | 41 |
| 26 | 59 | 41 |
| 27 | 58 | 42 |
| 28 | 58 | 42 |
| 29 | 58 | 42 |
| 30 | 57 | 43 |
| 31 | 57 | 43 |
Chance of precipitation in December
San Lorenzo gets around 160 mm of rain over 10 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 32% and peaks near 35% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 |
| Rain chance (%) | |
|---|---|
| 1 | 31 |
| 2 | 31 |
| 3 | 31 |
| 4 | 31 |
| 5 | 30 |
| 6 | 30 |
| 7 | 30 |
| 8 | 30 |
| 9 | 30 |
| 10 | 30 |
| 11 | 30 |
| 12 | 30 |
| 13 | 30 |
| 14 | 31 |
| 15 | 31 |
| 16 | 32 |
| 17 | 32 |
| 18 | 33 |
| 19 | 33 |
| 20 | 34 |
| 21 | 34 |
| 22 | 34 |
| 23 | 35 |
| 24 | 35 |
| 25 | 35 |
| 26 | 35 |
| 27 | 35 |
| 28 | 35 |
| 29 | 34 |
| 30 | 34 |
| 31 | 34 |
Humidity in December
Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the muggy band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 58% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Comfortable (%) | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 |
| Humid (%) | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 |
| Muggy (%) | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 |
| Oppressive (%) | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 27 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 35 | 35 | 36 |
| Miserable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 10 | 15 | 29 | 28 | 17 | 2 |
| 2 | 9 | 15 | 29 | 28 | 18 | 2 |
| 3 | 9 | 14 | 29 | 27 | 18 | 2 |
| 4 | 9 | 14 | 29 | 27 | 19 | 2 |
| 5 | 9 | 14 | 29 | 27 | 20 | 2 |
| 6 | 9 | 14 | 28 | 27 | 20 | 2 |
| 7 | 9 | 14 | 28 | 27 | 21 | 2 |
| 8 | 9 | 14 | 27 | 27 | 21 | 2 |
| 9 | 8 | 14 | 27 | 27 | 22 | 2 |
| 10 | 8 | 14 | 26 | 28 | 22 | 2 |
| 11 | 8 | 14 | 26 | 28 | 22 | 2 |
| 12 | 7 | 14 | 25 | 28 | 23 | 2 |
| 13 | 7 | 14 | 25 | 29 | 23 | 2 |
| 14 | 7 | 14 | 24 | 29 | 24 | 3 |
| 15 | 6 | 14 | 24 | 29 | 24 | 3 |
| 16 | 6 | 13 | 23 | 29 | 25 | 3 |
| 17 | 6 | 13 | 23 | 30 | 25 | 4 |
| 18 | 5 | 13 | 22 | 30 | 26 | 4 |
| 19 | 5 | 13 | 22 | 29 | 27 | 4 |
| 20 | 5 | 12 | 22 | 29 | 27 | 5 |
| 21 | 4 | 12 | 21 | 29 | 28 | 5 |
| 22 | 4 | 12 | 21 | 29 | 29 | 6 |
| 23 | 4 | 11 | 20 | 28 | 30 | 6 |
| 24 | 4 | 11 | 20 | 28 | 31 | 6 |
| 25 | 3 | 10 | 20 | 28 | 32 | 6 |
| 26 | 3 | 10 | 20 | 27 | 33 | 7 |
| 27 | 3 | 10 | 19 | 27 | 34 | 7 |
| 28 | 3 | 9 | 19 | 27 | 34 | 8 |
| 29 | 3 | 9 | 19 | 26 | 35 | 8 |
| 30 | 3 | 9 | 19 | 26 | 35 | 8 |
| 31 | 3 | 9 | 19 | 26 | 36 | 8 |
Wind in December
Winds average 13 km/h in December.
Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 13 | light breeze |
| 2 | 13 | light breeze |
| 3 | 13 | light breeze |
| 4 | 13 | light breeze |
| 5 | 13 | light breeze |
| 6 | 13 | light breeze |
| 7 | 13 | light breeze |
| 8 | 13 | light breeze |
| 9 | 13 | light breeze |
| 10 | 13 | light breeze |
| 11 | 13 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 13 | light breeze |
| 19 | 13 | light breeze |
| 20 | 13 | light breeze |
| 21 | 13 | light breeze |
| 22 | 13 | light breeze |
| 23 | 13 | light breeze |
| 24 | 13 | light breeze |
| 25 | 13 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 12 | light breeze |
| 29 | 12 | light breeze |
| 30 | 12 | light breeze |
| 31 | 12 | light breeze |
Sunrise & sunset in December
Daylight runs from about 13 h 42 min at the start of December to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over December. Sunrise moves from 5:55 AM to 6:05 AM, and sunset from 7:35 PM to 7:51 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 |
| Sunrise (AM) | 5:55 | 5:55 | 5:55 | 5:55 | 5:55 | 5:55 | 5:56 | 5:56 | 5:56 | 5:56 | 5:56 | 5:57 | 5:57 | 5:57 | 5:58 | 5:58 | 5:58 | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:02 | 6:02 | 6:03 | 6:04 | 6:04 | 6:05 | 6:05 |
| Sunset (PM) | 7:35 | 7:35 | 7:36 | 7:37 | 7:37 | 7:38 | 7:39 | 7:40 | 7:40 | 7:41 | 7:41 | 7:42 | 7:43 | 7:43 | 7:44 | 7:45 | 7:45 | 7:46 | 7:46 | 7:47 | 7:47 | 7:48 | 7:48 | 7:49 | 7:49 | 7:49 | 7:50 | 7:50 | 7:50 | 7:51 | 7:51 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.7 | 5:55 | 7:35 |
| 2 | 13.7 | 5:55 | 7:35 |
| 3 | 13.7 | 5:55 | 7:36 |
| 4 | 13.7 | 5:55 | 7:37 |
| 5 | 13.7 | 5:55 | 7:37 |
| 6 | 13.7 | 5:55 | 7:38 |
| 7 | 13.7 | 5:56 | 7:39 |
| 8 | 13.7 | 5:56 | 7:40 |
| 9 | 13.7 | 5:56 | 7:40 |
| 10 | 13.7 | 5:56 | 7:41 |
| 11 | 13.8 | 5:56 | 7:41 |
| 12 | 13.8 | 5:57 | 7:42 |
| 13 | 13.8 | 5:57 | 7:43 |
| 14 | 13.8 | 5:57 | 7:43 |
| 15 | 13.8 | 5:58 | 7:44 |
| 16 | 13.8 | 5:58 | 7:45 |
| 17 | 13.8 | 5:58 | 7:45 |
| 18 | 13.8 | 5:59 | 7:46 |
| 19 | 13.8 | 5:59 | 7:46 |
| 20 | 13.8 | 6:00 | 7:47 |
| 21 | 13.8 | 6:00 | 7:47 |
| 22 | 13.8 | 6:00 | 7:48 |
| 23 | 13.8 | 6:01 | 7:48 |
| 24 | 13.8 | 6:01 | 7:49 |
| 25 | 13.8 | 6:02 | 7:49 |
| 26 | 13.8 | 6:02 | 7:49 |
| 27 | 13.8 | 6:03 | 7:50 |
| 28 | 13.8 | 6:04 | 7:50 |
| 29 | 13.8 | 6:04 | 7:50 |
| 30 | 13.8 | 6:05 | 7:51 |
| 31 | 13.8 | 6:05 | 7:51 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 6.93 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 6.93 kWh/m² in December across the year — December's 6.93 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.8 | Intense |
| 2 | 6.8 | Intense |
| 3 | 6.8 | Intense |
| 4 | 6.8 | Intense |
| 5 | 6.8 | Intense |
| 6 | 6.8 | Intense |
| 7 | 6.9 | Intense |
| 8 | 6.9 | Intense |
| 9 | 6.9 | Intense |
| 10 | 6.9 | Intense |
| 11 | 6.9 | Intense |
| 12 | 7.0 | Intense |
| 13 | 7.0 | Intense |
| 14 | 7.0 | Intense |
| 15 | 7.0 | Intense |
| 16 | 7.0 | Intense |
| 17 | 7.0 | Intense |
| 18 | 7.0 | Intense |
| 19 | 7.0 | Intense |
| 20 | 7.0 | Intense |
| 21 | 7.0 | Intense |
| 22 | 7.0 | Intense |
| 23 | 7.0 | Intense |
| 24 | 7.0 | Intense |
| 25 | 7.0 | Intense |
| 26 | 7.0 | Intense |
| 27 | 7.0 | Intense |
| 28 | 7.0 | Intense |
| 29 | 7.0 | Intense |
| 30 | 7.0 | Intense |
| 31 | 7.0 | Intense |
Is December a good time to visit San Lorenzo?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit San Lorenzo for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San Lorenzo in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, San Lorenzo sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.
UV index in San Lorenzo in December
Clear-sky midday UV in December peaks 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 San Lorenzo peaks around January 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).
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 | 14 | 11 | 8 | 5 | 4 | 4 | 5 | 8 | 6 | 11 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Very high | High | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 5 | High |
| Jun | 4 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Air quality in San Lorenzo in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in San Lorenzo is worst in August — around 16 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (May, 6 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) | 11 | 14 | 7 | 7 | 6 | 7 | 9 | 16 | 14 | 9 | 7 | 6 |
| Level | Good | Moderate | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 14 | Moderate |
| Mar | 7 | Good |
| Apr | 7 | Good |
| May | 6 | Good |
| Jun | 7 | Good |
| Jul | 9 | Good |
| Aug | 16 | Moderate |
| Sep | 14 | Moderate |
| Oct | 9 | Good |
| Nov | 7 | Good |
| Dec | 6 | Good |
Where is San Lorenzo?
San Lorenzo sits at 28.1°S, 58.8°W, 63 m above sea level, in Argentina. The nearest listed city is Saladas, 19 km away.
Topography around San Lorenzo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Lorenzo.
Within 3 km, the terrain around San Lorenzo has only modest variations in elevation — a maximum elevation change of 23 m around an average of 61 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 43 m; within 80 km, only modest variations in elevation — a maximum elevation change of 75 m.
The land around San Lorenzo is covered by grassland (59%) and trees (33%) within 3 km, grassland (57%) and trees (23%) within 16 km, and grassland (44%), trees (24%) and wetland (24%) 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 San Lorenzo (-28.1344°, -58.7668°, elevation 63 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).