San José de Mayo weather in January
In January, San José de Mayo sees average daytime highs of 29°C and overnight lows near 18°C, with 85 mm of rain across 7.9 wet days and about 14 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 47% of the time in January, and the air most often feels humid.
Daylight stretches from about 14 h 18 min at the start of January to 13 h 42 min by month's end. Set against the rest of the year, January is San José de Mayo's 1st-clearest and 8th-windiest month. For the whole year in context, see San José de Mayo's year-round climate.
- Daytime high
- 29°
- 1st warmest
- Overnight low
- 18°
- 12th coldest
- Rainfall
- 85 mm
- 7.9 wet days
- Daylight
- 14 h 06 min
- 6:54 AM – 8:58 PM
- Cloud cover
- 46%
- 1st clearest
- Wind
- 13 km/h
- 8th windiest
- Solar energy
- 7.25 kWh/m²
- Travel score
- 5.9
- out of 10
San José de Mayo is city in Uruguay, departmental capital of San José.
- Density
- 2,117/km²
- people per km²
- Founded
- 1783
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 29°C through the month.
A typical January day in San José de Mayo reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, January runs about 2°C warmer than December and about 1°C warmer than February.
| 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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 18 |
| 2 | 29 | 18 |
| 3 | 29 | 18 |
| 4 | 29 | 18 |
| 5 | 29 | 18 |
| 6 | 29 | 18 |
| 7 | 29 | 18 |
| 8 | 29 | 18 |
| 9 | 29 | 18 |
| 10 | 29 | 18 |
| 11 | 29 | 18 |
| 12 | 29 | 18 |
| 13 | 29 | 18 |
| 14 | 29 | 18 |
| 15 | 29 | 18 |
| 16 | 29 | 18 |
| 17 | 29 | 18 |
| 18 | 29 | 18 |
| 19 | 29 | 18 |
| 20 | 29 | 18 |
| 21 | 29 | 18 |
| 22 | 29 | 18 |
| 23 | 29 | 18 |
| 24 | 29 | 18 |
| 25 | 29 | 18 |
| 26 | 29 | 18 |
| 27 | 29 | 18 |
| 28 | 29 | 18 |
| 29 | 29 | 18 |
| 30 | 29 | 18 |
| 31 | 29 | 18 |
San José de Mayo weather by month
How January compares with the rest of the year at a glance. January is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 18° | 85 | 7.9 | 14 | 5.9 |
| Feb | 28° / 18° | 102 | 8.2 | 13.3 | 6.4 |
| Mar | 26° / 16° | 103 | 8.1 | 12.3 | 7.1 |
| Apr | 22° / 13° | 101 | 8 | 11.2 | 7.1 |
| May | 19° / 10° | 83 | 6.7 | 10.2 | 6.4 |
| Jun | 16° / 7° | 79 | 7.5 | 9.8 | 5.2 |
| Jul | 15° / 6° | 78 | 7.4 | 9.9 | 4.8 |
| Aug | 17° / 8° | 91 | 7.7 | 10.7 | 5.8 |
| Sep | 19° / 9° | 85 | 7.6 | 11.8 | 6.4 |
| Oct | 22° / 11° | 116 | 9.8 | 12.9 | 6.7 |
| Nov | 25° / 14° | 105 | 7.8 | 13.8 | 7.3 |
| Dec | 28° / 16° | 88 | 8.3 | 14.3 | 6.6 |
Cloud cover in January
The sky is clear or mostly clear about 47% of the time in January, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 37%.
| 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 (%) | 59 | 60 | 60 | 61 | 62 | 62 | 62 | 63 | 63 | 64 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 66 | 65 | 65 | 65 | 64 | 64 | 63 | 63 | 63 | 62 | 61 | 60 | 60 |
| Cloudier (%) | 41 | 40 | 40 | 39 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 33 | 34 | 35 | 35 | 35 | 36 | 36 | 37 | 37 | 37 | 38 | 39 | 40 | 40 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 59 | 41 |
| 2 | 60 | 40 |
| 3 | 60 | 40 |
| 4 | 61 | 39 |
| 5 | 62 | 38 |
| 6 | 62 | 38 |
| 7 | 62 | 38 |
| 8 | 63 | 37 |
| 9 | 63 | 37 |
| 10 | 64 | 36 |
| 11 | 64 | 36 |
| 12 | 65 | 35 |
| 13 | 65 | 35 |
| 14 | 65 | 35 |
| 15 | 66 | 34 |
| 16 | 66 | 34 |
| 17 | 66 | 34 |
| 18 | 67 | 33 |
| 19 | 66 | 34 |
| 20 | 65 | 35 |
| 21 | 65 | 35 |
| 22 | 65 | 35 |
| 23 | 64 | 36 |
| 24 | 64 | 36 |
| 25 | 63 | 37 |
| 26 | 63 | 37 |
| 27 | 63 | 37 |
| 28 | 62 | 38 |
| 29 | 61 | 39 |
| 30 | 60 | 40 |
| 31 | 60 | 40 |
Chance of precipitation in January
San José de Mayo gets around 85 mm of rain over 7.9 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 26% and peaks near 29% 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 (%) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 28 | 28 | 29 |
| Rain chance (%) | |
|---|---|
| 1 | 26 |
| 2 | 26 |
| 3 | 26 |
| 4 | 26 |
| 5 | 26 |
| 6 | 26 |
| 7 | 26 |
| 8 | 26 |
| 9 | 26 |
| 10 | 26 |
| 11 | 26 |
| 12 | 26 |
| 13 | 26 |
| 14 | 26 |
| 15 | 25 |
| 16 | 25 |
| 17 | 24 |
| 18 | 24 |
| 19 | 24 |
| 20 | 24 |
| 21 | 24 |
| 22 | 24 |
| 23 | 24 |
| 24 | 25 |
| 25 | 25 |
| 26 | 26 |
| 27 | 26 |
| 28 | 27 |
| 29 | 28 |
| 30 | 28 |
| 31 | 29 |
Humidity in January
Most of January feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the humid band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 30% 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 (%) | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 |
| Comfortable (%) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 |
| Humid (%) | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Muggy (%) | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 |
| Oppressive (%) | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 18 | 23 | 29 | 25 | 5 |
| 2 | 18 | 23 | 29 | 25 | 5 |
| 3 | 18 | 23 | 28 | 26 | 5 |
| 4 | 18 | 23 | 28 | 26 | 5 |
| 5 | 18 | 23 | 28 | 26 | 5 |
| 6 | 19 | 23 | 28 | 25 | 5 |
| 7 | 19 | 23 | 28 | 25 | 4 |
| 8 | 19 | 23 | 28 | 25 | 4 |
| 9 | 20 | 24 | 28 | 25 | 4 |
| 10 | 20 | 24 | 28 | 25 | 4 |
| 11 | 20 | 24 | 28 | 25 | 4 |
| 12 | 20 | 24 | 28 | 24 | 3 |
| 13 | 20 | 24 | 28 | 24 | 3 |
| 14 | 20 | 24 | 28 | 24 | 3 |
| 15 | 20 | 24 | 29 | 24 | 3 |
| 16 | 20 | 24 | 29 | 24 | 3 |
| 17 | 20 | 24 | 29 | 24 | 4 |
| 18 | 20 | 24 | 29 | 24 | 4 |
| 19 | 20 | 23 | 28 | 24 | 4 |
| 20 | 20 | 23 | 28 | 25 | 4 |
| 21 | 19 | 23 | 28 | 25 | 5 |
| 22 | 19 | 22 | 28 | 25 | 5 |
| 23 | 19 | 22 | 28 | 26 | 5 |
| 24 | 18 | 22 | 28 | 27 | 6 |
| 25 | 18 | 21 | 28 | 27 | 6 |
| 26 | 17 | 21 | 28 | 27 | 6 |
| 27 | 17 | 21 | 28 | 28 | 7 |
| 28 | 17 | 21 | 28 | 28 | 7 |
| 29 | 17 | 20 | 28 | 28 | 7 |
| 30 | 16 | 20 | 28 | 27 | 8 |
| 31 | 16 | 20 | 28 | 27 | 8 |
Wind in January
Winds average 13 km/h in January.
Across January, daily wind ranges from about 13 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 | 13 | 13 | 13 | 13 |
| 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 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 13 | light breeze |
| 31 | 13 | light breeze |
Sunrise & sunset in January
Daylight runs from about 14 h 18 min at the start of January to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 36 minutes over January. Sunrise moves from 6:42 AM to 7:09 AM, and sunset from 8:58 PM to 8:52 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) | 14.3 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 |
| Sunrise (AM) | 6:42 | 6:43 | 6:44 | 6:44 | 6:45 | 6:46 | 6:47 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:53 | 6:53 | 6:54 | 6:55 | 6:56 | 6:57 | 6:58 | 6:59 | 7:00 | 7:01 | 7:02 | 7:03 | 7:04 | 7:05 | 7:06 | 7:07 | 7:08 | 7:09 |
| Sunset (PM) | 8:58 | 8:58 | 8:58 | 8:58 | 8:58 | 8:59 | 8:59 | 8:59 | 8:59 | 8:59 | 8:59 | 8:59 | 8:58 | 8:58 | 8:58 | 8:58 | 8:58 | 8:57 | 8:57 | 8:57 | 8:57 | 8:56 | 8:56 | 8:55 | 8:55 | 8:55 | 8:54 | 8:54 | 8:53 | 8:52 | 8:52 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.3 | 6:42 | 8:58 |
| 2 | 14.2 | 6:43 | 8:58 |
| 3 | 14.2 | 6:44 | 8:58 |
| 4 | 14.2 | 6:44 | 8:58 |
| 5 | 14.2 | 6:45 | 8:58 |
| 6 | 14.2 | 6:46 | 8:59 |
| 7 | 14.2 | 6:47 | 8:59 |
| 8 | 14.2 | 6:47 | 8:59 |
| 9 | 14.2 | 6:48 | 8:59 |
| 10 | 14.2 | 6:49 | 8:59 |
| 11 | 14.1 | 6:50 | 8:59 |
| 12 | 14.1 | 6:51 | 8:59 |
| 13 | 14.1 | 6:52 | 8:58 |
| 14 | 14.1 | 6:53 | 8:58 |
| 15 | 14.1 | 6:53 | 8:58 |
| 16 | 14.1 | 6:54 | 8:58 |
| 17 | 14.0 | 6:55 | 8:58 |
| 18 | 14.0 | 6:56 | 8:57 |
| 19 | 14.0 | 6:57 | 8:57 |
| 20 | 14.0 | 6:58 | 8:57 |
| 21 | 14.0 | 6:59 | 8:57 |
| 22 | 13.9 | 7:00 | 8:56 |
| 23 | 13.9 | 7:01 | 8:56 |
| 24 | 13.9 | 7:02 | 8:55 |
| 25 | 13.9 | 7:03 | 8:55 |
| 26 | 13.8 | 7:04 | 8:55 |
| 27 | 13.8 | 7:05 | 8:54 |
| 28 | 13.8 | 7:06 | 8:54 |
| 29 | 13.8 | 7:07 | 8:53 |
| 30 | 13.7 | 7:08 | 8:52 |
| 31 | 13.7 | 7:09 | 8:52 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 7.25 kWh/m².
For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 7.42 kWh/m² in December across the year — January's 7.25 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) | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.2 | 7.2 | 7.2 | 7.1 | 7.1 | 7.0 | 7.0 | 6.9 | 6.9 | 6.8 | 6.8 | 6.7 |
| 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 | 7.4 | Intense |
| 2 | 7.4 | Intense |
| 3 | 7.4 | Intense |
| 4 | 7.4 | Intense |
| 5 | 7.4 | Intense |
| 6 | 7.4 | Intense |
| 7 | 7.4 | Intense |
| 8 | 7.4 | Intense |
| 9 | 7.4 | Intense |
| 10 | 7.4 | Intense |
| 11 | 7.4 | Intense |
| 12 | 7.4 | Intense |
| 13 | 7.4 | Intense |
| 14 | 7.3 | Intense |
| 15 | 7.3 | Intense |
| 16 | 7.3 | Intense |
| 17 | 7.3 | Intense |
| 18 | 7.3 | Intense |
| 19 | 7.3 | Intense |
| 20 | 7.2 | Intense |
| 21 | 7.2 | Intense |
| 22 | 7.2 | Intense |
| 23 | 7.1 | Intense |
| 24 | 7.1 | Intense |
| 25 | 7.0 | Intense |
| 26 | 7.0 | Intense |
| 27 | 6.9 | Intense |
| 28 | 6.9 | Intense |
| 29 | 6.8 | Intense |
| 30 | 6.8 | Intense |
| 31 | 6.7 | Intense |
Is January a good time to visit San José de Mayo?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit San José de Mayo for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San José de Mayo in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, San José de Mayo sees daytime highs around 29°C and nights near 18°C. Pack light clothes and sun protection. About 8 days see rain.
Sea temperature near San José de Mayo in January
The nearest coast averages about 24°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 35 km away) is warmest in January at about 24°C and coldest in July near 11°C.
It's comfortable for a long swim from Nov 17 to Apr 9 — about 4.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 24 | 23 | 19 | 16 | 13 | 11 | 12 | 14 | 17 | 20 | 23 |
| Comfort | Warm | Warm | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 24 | Warm |
| Mar | 23 | Refreshing |
| Apr | 19 | Cool |
| May | 16 | Cool |
| Jun | 13 | Bracing |
| Jul | 11 | Bracing |
| Aug | 12 | Bracing |
| Sep | 14 | Bracing |
| Oct | 17 | Cool |
| Nov | 20 | Refreshing |
| Dec | 23 | Refreshing |
UV index in San José de Mayo in January
Clear-sky midday UV in January 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 José de Mayo peaks around January 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 11 | 10 | 6 | 4 | 3 | 3 | 4 | 6 | 8 | 11 | 11 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 11 | Extreme |
| Mar | 10 | Very high |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Where is San José de Mayo?
San José de Mayo sits at 34.3°S, 56.7°W, 53 m above sea level, in Uruguay. The nearest listed city is Santa Lucía, 32 km away.
Topography around San José de Mayo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San José de Mayo.
Within 3 km, the terrain around San José de Mayo has only modest variations in elevation — a maximum elevation change of 50 m around an average of 37 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 85 m; within 80 km, only modest variations in elevation — a maximum elevation change of 202 m.
The land around San José de Mayo is covered by grassland (40%), artificial surfaces (23%) and trees (21%) within 3 km, cropland (51%) and grassland (37%) within 16 km, and grassland (39%), cropland (33%) and water (21%) within 80 km.
Uruguay travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / I / L
- 230 V · 50 Hz
- Prices
- ≈ 66% of US
- price level, 2025
- GDP per capita
- $25,216
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Homicide rate
- 11.2
- per 100k, 2023
- Road deaths
- 14.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 542
- 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 José de Mayo (-34.339°, -56.7134°, elevation 53 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).