Montevideo weather in May
In May, Montevideo sees average daytime highs of 16°C and overnight lows near 14°C, with 87 mm of rain across 7.9 wet days and about 10.2 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.
Highs ease over the month, from about 17°C in the first days to 15°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels dry.
Daylight stretches from about 10 h 36 min at the start of May to 9 h 54 min by month's end. Set against the rest of the year, May is Montevideo's 10th-clearest and 12th-windiest month. For the whole year in context, see Montevideo's year-round climate.
- Daytime high
- 16°
- 8th warmest
- Overnight low
- 14°
- 5th coldest
- Rainfall
- 87 mm
- 7.9 wet days
- Daylight
- 10 h 12 min
- 8:36 AM – 6:46 PM
- Cloud cover
- 58%
- 10th clearest
- Wind
- 21 km/h
- 12th windiest
- Solar energy
- 2.6 kWh/m²
- Travel score
- 5.4
- out of 10
Montevideo is capital and largest city of Uruguay.
- Air quality
- Moderate
- PM2.5 12 µg/m³ · 2018
- Density
- 1,741/km²
- people per km²
- Founded
- 1726
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs ease over the month, from about 17°C in the first days to 15°C by the end.
A typical May day in Montevideo reaches about 16°C in the afternoon and slips back to 14°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 19°C. Set against its neighbours, May runs about 3°C cooler than April and about 3°C warmer than June.
| 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) | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Avg low (°C) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 15 |
| 2 | 18 | 15 |
| 3 | 18 | 15 |
| 4 | 17 | 15 |
| 5 | 17 | 15 |
| 6 | 17 | 15 |
| 7 | 17 | 15 |
| 8 | 17 | 15 |
| 9 | 17 | 15 |
| 10 | 17 | 15 |
| 11 | 17 | 14 |
| 12 | 17 | 14 |
| 13 | 17 | 14 |
| 14 | 16 | 14 |
| 15 | 16 | 14 |
| 16 | 16 | 14 |
| 17 | 16 | 14 |
| 18 | 16 | 14 |
| 19 | 16 | 14 |
| 20 | 16 | 14 |
| 21 | 16 | 13 |
| 22 | 16 | 13 |
| 23 | 16 | 13 |
| 24 | 15 | 13 |
| 25 | 15 | 13 |
| 26 | 15 | 13 |
| 27 | 15 | 13 |
| 28 | 15 | 13 |
| 29 | 15 | 13 |
| 30 | 15 | 13 |
| 31 | 15 | 12 |
Montevideo weather by month
How May compares with the rest of the year at a glance. May is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 21° | 67 | 5.8 | 14.1 | 8.0 |
| Feb | 24° / 21° | 91 | 7.4 | 13.3 | 7.5 |
| Mar | 22° / 20° | 97 | 7.8 | 12.3 | 7.3 |
| Apr | 19° / 17° | 107 | 8.4 | 11.1 | 6.5 |
| May | 16° / 14° | 87 | 7.9 | 10.2 | 5.4 |
| Jun | 14° / 11° | 90 | 8.6 | 9.7 | 4.0 |
| Jul | 12° / 10° | 96 | 8.7 | 9.9 | 3.4 |
| Aug | 13° / 11° | 97 | 8.4 | 10.7 | 3.9 |
| Sep | 15° / 12° | 92 | 8.3 | 11.8 | 4.6 |
| Oct | 17° / 14° | 111 | 8.8 | 12.9 | 5.7 |
| Nov | 20° / 17° | 101 | 7.7 | 13.8 | 6.8 |
| Dec | 22° / 19° | 73 | 6.8 | 14.3 | 7.5 |
Cloud cover in May
The sky is clear or mostly clear about 33% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.
| 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 (%) | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 52 | 51 | 51 | 50 | 49 | 49 | 48 | 47 | 47 | 46 | 46 | 46 | 46 | 45 | 45 | 45 | 45 | 44 | 44 | 45 | 45 | 46 | 46 | 47 |
| Cloudier (%) | 46 | 46 | 47 | 47 | 47 | 48 | 48 | 48 | 49 | 49 | 50 | 51 | 51 | 52 | 53 | 53 | 54 | 54 | 54 | 54 | 55 | 55 | 55 | 55 | 56 | 56 | 55 | 55 | 54 | 54 | 53 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 54 | 46 |
| 2 | 54 | 46 |
| 3 | 53 | 47 |
| 4 | 53 | 47 |
| 5 | 53 | 47 |
| 6 | 52 | 48 |
| 7 | 52 | 48 |
| 8 | 52 | 48 |
| 9 | 51 | 49 |
| 10 | 51 | 49 |
| 11 | 50 | 50 |
| 12 | 49 | 51 |
| 13 | 49 | 51 |
| 14 | 48 | 52 |
| 15 | 47 | 53 |
| 16 | 47 | 53 |
| 17 | 46 | 54 |
| 18 | 46 | 54 |
| 19 | 46 | 54 |
| 20 | 46 | 54 |
| 21 | 45 | 55 |
| 22 | 45 | 55 |
| 23 | 45 | 55 |
| 24 | 45 | 55 |
| 25 | 44 | 56 |
| 26 | 44 | 56 |
| 27 | 45 | 55 |
| 28 | 45 | 55 |
| 29 | 46 | 54 |
| 30 | 46 | 54 |
| 31 | 47 | 53 |
Chance of precipitation in May
Montevideo gets around 87 mm of rain over 7.9 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 25% and peaks near 28% 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 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 |
| Rain chance (%) | |
|---|---|
| 1 | 26 |
| 2 | 25 |
| 3 | 25 |
| 4 | 25 |
| 5 | 24 |
| 6 | 24 |
| 7 | 24 |
| 8 | 23 |
| 9 | 23 |
| 10 | 23 |
| 11 | 23 |
| 12 | 23 |
| 13 | 23 |
| 14 | 24 |
| 15 | 24 |
| 16 | 25 |
| 17 | 25 |
| 18 | 25 |
| 19 | 26 |
| 20 | 26 |
| 21 | 26 |
| 22 | 27 |
| 23 | 27 |
| 24 | 27 |
| 25 | 27 |
| 26 | 28 |
| 27 | 27 |
| 28 | 27 |
| 29 | 27 |
| 30 | 27 |
| 31 | 27 |
Humidity in May
Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 50 | 51 | 51 | 52 | 54 | 55 | 56 | 56 | 57 | 58 | 59 | 60 | 60 | 60 | 61 | 62 | 63 | 64 | 64 | 66 | 67 | 69 | 71 | 72 | 73 | 75 | 76 | 78 | 79 | 81 | 82 |
| Comfortable (%) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 28 | 28 | 27 | 26 | 24 | 23 | 22 | 21 | 20 | 19 | 17 | 16 | 15 | 14 |
| Humid (%) | 20 | 19 | 19 | 18 | 17 | 16 | 15 | 15 | 14 | 13 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 |
| Muggy (%) | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 50 | 29 | 20 | 1 |
| 2 | 51 | 29 | 19 | 1 |
| 3 | 51 | 29 | 19 | 1 |
| 4 | 52 | 29 | 18 | 1 |
| 5 | 54 | 29 | 17 | 0 |
| 6 | 55 | 29 | 16 | 0 |
| 7 | 56 | 29 | 15 | 0 |
| 8 | 56 | 29 | 15 | 0 |
| 9 | 57 | 29 | 14 | 0 |
| 10 | 58 | 29 | 13 | 0 |
| 11 | 59 | 29 | 12 | 0 |
| 12 | 60 | 29 | 11 | 0 |
| 13 | 60 | 29 | 11 | 0 |
| 14 | 60 | 30 | 10 | 0 |
| 15 | 61 | 30 | 9 | 0 |
| 16 | 62 | 29 | 9 | 0 |
| 17 | 63 | 29 | 8 | 0 |
| 18 | 64 | 28 | 8 | 0 |
| 19 | 64 | 28 | 8 | 0 |
| 20 | 66 | 27 | 7 | 0 |
| 21 | 67 | 26 | 7 | 0 |
| 22 | 69 | 24 | 7 | 0 |
| 23 | 71 | 23 | 6 | 0 |
| 24 | 72 | 22 | 6 | 0 |
| 25 | 73 | 21 | 6 | 0 |
| 26 | 75 | 20 | 5 | 0 |
| 27 | 76 | 19 | 5 | 0 |
| 28 | 78 | 17 | 5 | 0 |
| 29 | 79 | 16 | 5 | 0 |
| 30 | 81 | 15 | 4 | 0 |
| 31 | 82 | 14 | 4 | 0 |
Wind in May
Winds average 21 km/h in May, the calmest month.
Across May, daily wind ranges from about 21 km/h on the calmest days to 22 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) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 21 | breezy |
| 2 | 21 | breezy |
| 3 | 21 | breezy |
| 4 | 21 | breezy |
| 5 | 21 | breezy |
| 6 | 21 | breezy |
| 7 | 21 | breezy |
| 8 | 21 | breezy |
| 9 | 21 | breezy |
| 10 | 21 | breezy |
| 11 | 21 | breezy |
| 12 | 21 | breezy |
| 13 | 21 | breezy |
| 14 | 21 | breezy |
| 15 | 21 | breezy |
| 16 | 21 | breezy |
| 17 | 21 | breezy |
| 18 | 21 | breezy |
| 19 | 22 | breezy |
| 20 | 22 | breezy |
| 21 | 22 | breezy |
| 22 | 22 | breezy |
| 23 | 22 | breezy |
| 24 | 22 | breezy |
| 25 | 22 | breezy |
| 26 | 22 | breezy |
| 27 | 22 | breezy |
| 28 | 22 | breezy |
| 29 | 22 | breezy |
| 30 | 22 | breezy |
| 31 | 22 | breezy |
Sunrise & sunset in May
Daylight runs from about 10 h 36 min at the start of May to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 42 minutes over May. Sunrise moves from 8:24 AM to 8:47 AM, and sunset from 7:00 PM to 6:38 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) | 10.6 | 10.6 | 10.6 | 10.5 | 10.5 | 10.5 | 10.4 | 10.4 | 10.4 | 10.3 | 10.3 | 10.3 | 10.3 | 10.2 | 10.2 | 10.2 | 10.2 | 10.1 | 10.1 | 10.1 | 10.1 | 10.0 | 10.0 | 10.0 | 10.0 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 |
| Sunrise (AM) | 8:24 | 8:24 | 8:25 | 8:26 | 8:27 | 8:28 | 8:28 | 8:29 | 8:30 | 8:31 | 8:32 | 8:33 | 8:33 | 8:34 | 8:35 | 8:36 | 8:36 | 8:37 | 8:38 | 8:39 | 8:40 | 8:40 | 8:41 | 8:42 | 8:43 | 8:43 | 8:44 | 8:45 | 8:45 | 8:46 | 8:47 |
| Sunset (PM) | 7:00 | 6:59 | 6:58 | 6:57 | 6:56 | 6:55 | 6:54 | 6:53 | 6:52 | 6:51 | 6:50 | 6:50 | 6:49 | 6:48 | 6:47 | 6:46 | 6:46 | 6:45 | 6:44 | 6:43 | 6:43 | 6:42 | 6:42 | 6:41 | 6:40 | 6:40 | 6:39 | 6:39 | 6:38 | 6:38 | 6:38 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.6 | 8:24 | 7:00 |
| 2 | 10.6 | 8:24 | 6:59 |
| 3 | 10.6 | 8:25 | 6:58 |
| 4 | 10.5 | 8:26 | 6:57 |
| 5 | 10.5 | 8:27 | 6:56 |
| 6 | 10.5 | 8:28 | 6:55 |
| 7 | 10.4 | 8:28 | 6:54 |
| 8 | 10.4 | 8:29 | 6:53 |
| 9 | 10.4 | 8:30 | 6:52 |
| 10 | 10.3 | 8:31 | 6:51 |
| 11 | 10.3 | 8:32 | 6:50 |
| 12 | 10.3 | 8:33 | 6:50 |
| 13 | 10.3 | 8:33 | 6:49 |
| 14 | 10.2 | 8:34 | 6:48 |
| 15 | 10.2 | 8:35 | 6:47 |
| 16 | 10.2 | 8:36 | 6:46 |
| 17 | 10.2 | 8:36 | 6:46 |
| 18 | 10.1 | 8:37 | 6:45 |
| 19 | 10.1 | 8:38 | 6:44 |
| 20 | 10.1 | 8:39 | 6:43 |
| 21 | 10.1 | 8:40 | 6:43 |
| 22 | 10.0 | 8:40 | 6:42 |
| 23 | 10.0 | 8:41 | 6:42 |
| 24 | 10.0 | 8:42 | 6:41 |
| 25 | 10.0 | 8:43 | 6:40 |
| 26 | 9.9 | 8:43 | 6:40 |
| 27 | 9.9 | 8:44 | 6:39 |
| 28 | 9.9 | 8:45 | 6:39 |
| 29 | 9.9 | 8:45 | 6:38 |
| 30 | 9.9 | 8:46 | 6:38 |
| 31 | 9.9 | 8:47 | 6:38 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 2.6 kWh/m².
For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 7.54 kWh/m² in December across the year — May's 2.6 kWh/m² sits near the bottom.
| 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) | 3.1 | 3.1 | 3.0 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 | 2.5 | 2.5 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.1 | Moderate |
| 2 | 3.1 | Moderate |
| 3 | 3.0 | Moderate |
| 4 | 3.0 | Moderate |
| 5 | 3.0 | Moderate |
| 6 | 2.9 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.8 | Moderate |
| 11 | 2.8 | Moderate |
| 12 | 2.7 | Moderate |
| 13 | 2.7 | Moderate |
| 14 | 2.6 | Moderate |
| 15 | 2.6 | Moderate |
| 16 | 2.6 | Moderate |
| 17 | 2.5 | Moderate |
| 18 | 2.5 | Moderate |
| 19 | 2.5 | Moderate |
| 20 | 2.5 | Moderate |
| 21 | 2.4 | Moderate |
| 22 | 2.4 | Moderate |
| 23 | 2.4 | Moderate |
| 24 | 2.4 | Moderate |
| 25 | 2.4 | Moderate |
| 26 | 2.4 | Moderate |
| 27 | 2.3 | Moderate |
| 28 | 2.3 | Moderate |
| 29 | 2.3 | Moderate |
| 30 | 2.3 | Moderate |
| 31 | 2.3 | Moderate |
Is May a good time to visit Montevideo?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Montevideo for sightseeing.
What to pack for Montevideo in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Montevideo sees daytime highs around 16°C and nights near 14°C. Worth packing: a warm layer and a windbreaker. About 8 days see rain.
Sea temperature near Montevideo in May
The nearest coast averages about 16°C in May — 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 24°C and coldest in July near 11°C.
It's comfortable for a long swim from Nov 27 to Apr 9 — about 4.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 23 | 24 | 22 | 19 | 16 | 13 | 11 | 12 | 13 | 16 | 19 | 22 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 23 | Refreshing |
| Feb | 24 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 19 | Cool |
| May | 16 | Cool |
| Jun | 13 | Bracing |
| Jul | 11 | Bracing |
| Aug | 12 | Bracing |
| Sep | 13 | Bracing |
| Oct | 16 | Cool |
| Nov | 19 | Cool |
| Dec | 22 | Refreshing |
UV index in Montevideo in May
Clear-sky midday UV in May peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Montevideo peaks around January 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 11 | 10 | 6 | 3 | 2 | 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 | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 10 | Very high |
| Apr | 6 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Montevideo in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Montevideo is worst in August — around 16 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (February, 10 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Montevideo's WHO annual average of 12 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 10 | 10 | 11 | 12 | 13 | 15 | 16 | 14 | 12 | 10 | 10 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 10 | Good |
| Mar | 10 | Good |
| Apr | 11 | Good |
| May | 12 | Moderate |
| Jun | 13 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 14 | Moderate |
| Oct | 12 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Montevideo?
Montevideo sits at 34.9°S, 56.2°W, 34 m above sea level, in Uruguay. The nearest listed city is Paso de Carrasco, 13 km away.
Topography around Montevideo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Montevideo.
Within 3 km, the terrain around Montevideo has only modest variations in elevation — a maximum elevation change of 56 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.
The land around Montevideo is covered by artificial surfaces (55%) and water (38%) within 3 km, water (53%) and artificial surfaces (21%) within 16 km, and water (43%) and grassland (27%) 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 Montevideo (-34.9033°, -56.1882°, elevation 34 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. 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).