Guarulhos weather in May
In May, Guarulhos sees average daytime highs of 23°C and overnight lows near 14°C, with 64 mm of rain across 7.8 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.
Highs ease over the month, from about 24°C in the first days to 22°C by the end. The sky is clear or mostly clear about 32% of the time in May, and the air most often feels comfortable.
Daylight stretches from about 11 h 06 min at the start of May to 10 h 42 min by month's end. Set against the rest of the year, May is Guarulhos's 4th-clearest and 7th-windiest month. For the whole year in context, see Guarulhos's year-round climate.
- Daytime high
- 23°
- 10th warmest
- Overnight low
- 14°
- 4th coldest
- Rainfall
- 64 mm
- 7.8 wet days
- Daylight
- 10 h 54 min
- 7:36 AM – 6:29 PM
- Cloud cover
- 58%
- 4th clearest
- Wind
- 10 km/h
- 7th windiest
- Solar energy
- 3.54 kWh/m²
- Travel score
- 7.1
- out of 10
Guarulhos is settlement in Brazil.
- Air quality
- Elevated
- PM2.5 15.2 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs ease over the month, from about 24°C in the first days to 22°C by the end.
A typical May day in Guarulhos reaches about 23°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 3°C cooler than April and on par with 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) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Avg low (°C) | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 16 |
| 2 | 24 | 16 |
| 3 | 24 | 15 |
| 4 | 24 | 15 |
| 5 | 24 | 15 |
| 6 | 24 | 15 |
| 7 | 24 | 15 |
| 8 | 23 | 15 |
| 9 | 23 | 15 |
| 10 | 23 | 15 |
| 11 | 23 | 15 |
| 12 | 23 | 15 |
| 13 | 23 | 15 |
| 14 | 23 | 15 |
| 15 | 23 | 15 |
| 16 | 23 | 14 |
| 17 | 23 | 14 |
| 18 | 22 | 14 |
| 19 | 22 | 14 |
| 20 | 22 | 14 |
| 21 | 22 | 14 |
| 22 | 22 | 14 |
| 23 | 22 | 14 |
| 24 | 22 | 14 |
| 25 | 22 | 14 |
| 26 | 22 | 14 |
| 27 | 22 | 14 |
| 28 | 22 | 14 |
| 29 | 22 | 14 |
| 30 | 22 | 14 |
| 31 | 22 | 14 |
Guarulhos weather by month
How May compares with the rest of the year at a glance. May is the 10th-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 | 27° / 19° | 232 | 23.8 | 13.3 | 4.3 |
| Feb | 28° / 19° | 179 | 20.2 | 12.8 | 4.5 |
| Mar | 27° / 19° | 154 | 20.1 | 12.2 | 5.0 |
| Apr | 25° / 17° | 64 | 10.7 | 11.5 | 6.6 |
| May | 23° / 14° | 64 | 7.8 | 10.9 | 7.1 |
| Jun | 22° / 13° | 47 | 5.6 | 10.6 | 7.5 |
| Jul | 22° / 12° | 54 | 5.6 | 10.7 | 7.5 |
| Aug | 23° / 13° | 40 | 5.2 | 11.2 | 7.8 |
| Sep | 24° / 15° | 90 | 9.8 | 11.9 | 6.9 |
| Oct | 25° / 16° | 116 | 14.7 | 12.6 | 5.9 |
| Nov | 25° / 17° | 152 | 16.8 | 13.1 | 5.4 |
| Dec | 27° / 18° | 181 | 20.9 | 13.4 | 4.8 |
Cloud cover in May
The sky is clear or mostly clear about 32% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 52%.
| 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 | 52 | 52 | 51 | 50 | 49 | 49 | 48 | 48 | 47 | 46 | 46 | 45 | 45 | 46 | 46 | 46 | 46 | 47 | 46 | 46 | 47 | 48 | 48 | 47 | 48 | 48 | 50 |
| Cloudier (%) | 46 | 46 | 47 | 47 | 48 | 48 | 49 | 50 | 51 | 51 | 52 | 52 | 53 | 54 | 54 | 55 | 55 | 54 | 54 | 54 | 54 | 53 | 54 | 54 | 53 | 52 | 52 | 53 | 52 | 52 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 54 | 46 |
| 2 | 54 | 46 |
| 3 | 53 | 47 |
| 4 | 53 | 47 |
| 5 | 52 | 48 |
| 6 | 52 | 48 |
| 7 | 51 | 49 |
| 8 | 50 | 50 |
| 9 | 49 | 51 |
| 10 | 49 | 51 |
| 11 | 48 | 52 |
| 12 | 48 | 52 |
| 13 | 47 | 53 |
| 14 | 46 | 54 |
| 15 | 46 | 54 |
| 16 | 45 | 55 |
| 17 | 45 | 55 |
| 18 | 46 | 54 |
| 19 | 46 | 54 |
| 20 | 46 | 54 |
| 21 | 46 | 54 |
| 22 | 47 | 53 |
| 23 | 46 | 54 |
| 24 | 46 | 54 |
| 25 | 47 | 53 |
| 26 | 48 | 52 |
| 27 | 48 | 52 |
| 28 | 47 | 53 |
| 29 | 48 | 52 |
| 30 | 48 | 52 |
| 31 | 50 | 50 |
Chance of precipitation in May
Guarulhos gets around 64 mm of rain over 7.8 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 26% and peaks near 27% 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 | 24 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 |
| Rain chance (%) | |
|---|---|
| 1 | 26 |
| 2 | 25 |
| 3 | 25 |
| 4 | 25 |
| 5 | 24 |
| 6 | 24 |
| 7 | 24 |
| 8 | 24 |
| 9 | 25 |
| 10 | 25 |
| 11 | 25 |
| 12 | 25 |
| 13 | 25 |
| 14 | 26 |
| 15 | 26 |
| 16 | 26 |
| 17 | 26 |
| 18 | 26 |
| 19 | 27 |
| 20 | 27 |
| 21 | 27 |
| 22 | 27 |
| 23 | 27 |
| 24 | 26 |
| 25 | 26 |
| 26 | 26 |
| 27 | 26 |
| 28 | 26 |
| 29 | 26 |
| 30 | 26 |
| 31 | 25 |
Humidity in May
Most of May feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the comfortable band about 48% 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 (%) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 31 | 32 | 33 | 34 | 36 | 37 | 38 |
| Comfortable (%) | 40 | 41 | 42 | 43 | 44 | 44 | 45 | 46 | 47 | 47 | 48 | 49 | 50 | 50 | 51 | 51 | 52 | 52 | 52 | 52 | 51 | 51 | 51 | 50 | 49 | 48 | 47 | 46 | 46 | 45 | 44 |
| Humid (%) | 43 | 42 | 41 | 39 | 38 | 37 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 22 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 |
| Muggy (%) | 7 | 6 | 5 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 11 | 40 | 43 | 7 |
| 2 | 12 | 41 | 42 | 6 |
| 3 | 13 | 42 | 41 | 5 |
| 4 | 14 | 43 | 39 | 4 |
| 5 | 15 | 44 | 38 | 3 |
| 6 | 16 | 44 | 37 | 3 |
| 7 | 17 | 45 | 35 | 3 |
| 8 | 17 | 46 | 34 | 3 |
| 9 | 18 | 47 | 33 | 2 |
| 10 | 18 | 47 | 32 | 2 |
| 11 | 19 | 48 | 31 | 2 |
| 12 | 20 | 49 | 30 | 2 |
| 13 | 20 | 50 | 29 | 2 |
| 14 | 21 | 50 | 28 | 1 |
| 15 | 21 | 51 | 27 | 1 |
| 16 | 22 | 51 | 26 | 1 |
| 17 | 22 | 52 | 25 | 1 |
| 18 | 23 | 52 | 24 | 1 |
| 19 | 24 | 52 | 23 | 1 |
| 20 | 25 | 52 | 22 | 1 |
| 21 | 26 | 51 | 22 | 1 |
| 22 | 27 | 51 | 21 | 1 |
| 23 | 28 | 51 | 20 | 1 |
| 24 | 29 | 50 | 20 | 1 |
| 25 | 31 | 49 | 20 | 1 |
| 26 | 32 | 48 | 19 | 1 |
| 27 | 33 | 47 | 19 | 1 |
| 28 | 34 | 46 | 19 | 1 |
| 29 | 36 | 46 | 18 | 1 |
| 30 | 37 | 45 | 18 | 1 |
| 31 | 38 | 44 | 18 | 1 |
Wind in May
Winds average 10 km/h in May.
Across May, daily wind ranges from about 9 km/h on the calmest days to 10 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) | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in May
Daylight runs from about 11 h 06 min at the start of May to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over May. Sunrise moves from 7:29 AM to 7:43 AM, and sunset from 6:38 PM to 6:24 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) | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 |
| Sunrise (AM) | 7:29 | 7:30 | 7:30 | 7:30 | 7:31 | 7:31 | 7:32 | 7:32 | 7:33 | 7:33 | 7:34 | 7:34 | 7:35 | 7:35 | 7:36 | 7:36 | 7:37 | 7:37 | 7:38 | 7:38 | 7:39 | 7:39 | 7:40 | 7:40 | 7:41 | 7:41 | 7:41 | 7:42 | 7:42 | 7:43 | 7:43 |
| Sunset (PM) | 6:38 | 6:37 | 6:36 | 6:35 | 6:35 | 6:34 | 6:33 | 6:33 | 6:32 | 6:32 | 6:31 | 6:31 | 6:30 | 6:30 | 6:29 | 6:29 | 6:28 | 6:28 | 6:27 | 6:27 | 6:26 | 6:26 | 6:26 | 6:25 | 6:25 | 6:25 | 6:25 | 6:24 | 6:24 | 6:24 | 6:24 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.1 | 7:29 | 6:38 |
| 2 | 11.1 | 7:30 | 6:37 |
| 3 | 11.1 | 7:30 | 6:36 |
| 4 | 11.1 | 7:30 | 6:35 |
| 5 | 11.1 | 7:31 | 6:35 |
| 6 | 11.0 | 7:31 | 6:34 |
| 7 | 11.0 | 7:32 | 6:33 |
| 8 | 11.0 | 7:32 | 6:33 |
| 9 | 11.0 | 7:33 | 6:32 |
| 10 | 11.0 | 7:33 | 6:32 |
| 11 | 11.0 | 7:34 | 6:31 |
| 12 | 10.9 | 7:34 | 6:31 |
| 13 | 10.9 | 7:35 | 6:30 |
| 14 | 10.9 | 7:35 | 6:30 |
| 15 | 10.9 | 7:36 | 6:29 |
| 16 | 10.9 | 7:36 | 6:29 |
| 17 | 10.9 | 7:37 | 6:28 |
| 18 | 10.8 | 7:37 | 6:28 |
| 19 | 10.8 | 7:38 | 6:27 |
| 20 | 10.8 | 7:38 | 6:27 |
| 21 | 10.8 | 7:39 | 6:26 |
| 22 | 10.8 | 7:39 | 6:26 |
| 23 | 10.8 | 7:40 | 6:26 |
| 24 | 10.8 | 7:40 | 6:25 |
| 25 | 10.7 | 7:41 | 6:25 |
| 26 | 10.7 | 7:41 | 6:25 |
| 27 | 10.7 | 7:41 | 6:25 |
| 28 | 10.7 | 7:42 | 6:24 |
| 29 | 10.7 | 7:42 | 6:24 |
| 30 | 10.7 | 7:43 | 6:24 |
| 31 | 10.7 | 7:43 | 6:24 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 3.54 kWh/m².
For context, solar energy here swings from a low near 3.31 kWh/m² to a high of 5.64 kWh/m² in December across the year — May's 3.54 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) | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.8 | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.5 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
| Level | Bright | 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 | 4.0 | Bright |
| 2 | 4.0 | Moderate |
| 3 | 3.9 | Moderate |
| 4 | 3.9 | Moderate |
| 5 | 3.9 | Moderate |
| 6 | 3.8 | Moderate |
| 7 | 3.8 | Moderate |
| 8 | 3.8 | Moderate |
| 9 | 3.7 | Moderate |
| 10 | 3.7 | Moderate |
| 11 | 3.6 | Moderate |
| 12 | 3.6 | Moderate |
| 13 | 3.6 | Moderate |
| 14 | 3.5 | Moderate |
| 15 | 3.5 | Moderate |
| 16 | 3.5 | Moderate |
| 17 | 3.4 | Moderate |
| 18 | 3.4 | Moderate |
| 19 | 3.4 | Moderate |
| 20 | 3.4 | Moderate |
| 21 | 3.4 | Moderate |
| 22 | 3.3 | Moderate |
| 23 | 3.3 | Moderate |
| 24 | 3.3 | Moderate |
| 25 | 3.3 | Moderate |
| 26 | 3.3 | Moderate |
| 27 | 3.3 | Moderate |
| 28 | 3.3 | Moderate |
| 29 | 3.3 | Moderate |
| 30 | 3.3 | Moderate |
| 31 | 3.3 | Moderate |
Hazard calendar for Guarulhos
None of Guarulhos's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Guarulhos's rainy season runs October–March, when most of the year's rain falls.
Is May a good time to visit Guarulhos?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is one of the better times to visit Guarulhos for general sightseeing.
What to pack for Guarulhos in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Guarulhos sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes. About 8 days see rain.
Sea temperature near Guarulhos in May
The nearest coast averages about 24°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 62 km away) is warmest in February at about 27°C and coldest in August near 21°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) | 27 | 27 | 27 | 26 | 24 | 22 | 21 | 21 | 21 | 22 | 23 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 26 | Warm |
| May | 24 | Refreshing |
| Jun | 22 | Refreshing |
| Jul | 21 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Guarulhos in May
Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Guarulhos peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 5 (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 | 15 | 10 | 9 | 7 | 6 | 5 | 7 | 8 | 11 | 12 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 10 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 7 | Very high |
| Sep | 8 | Very high |
| Oct | 11 | Extreme |
| Nov | 12 | Extreme |
| Dec | 14 | Extreme |
Air quality in Guarulhos 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 Guarulhos is worst in June — around 22 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 10 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Guarulhos's WHO annual average of 15.2 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 13 | 15 | 20 | 22 | 22 | 19 | 17 | 13 | 10 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 13 | Moderate |
| Apr | 15 | Moderate |
| May | 20 | Moderate |
| Jun | 22 | Moderate |
| Jul | 22 | Moderate |
| Aug | 19 | Moderate |
| Sep | 17 | Moderate |
| Oct | 13 | Moderate |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Guarulhos?
Guarulhos sits at 23.5°S, 46.5°W, 774 m above sea level, in Brazil. The nearest listed city is Cangaiba, 4.0 km away.
Topography around Guarulhos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guarulhos.
Within 3 km, the terrain around Guarulhos has only modest variations in elevation — a maximum elevation change of 92 m around an average of 757 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 493 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,031 m.
The land around Guarulhos is covered by artificial surfaces (81%) within 3 km, artificial surfaces (58%) and trees (35%) within 16 km, and trees (56%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- 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 Guarulhos (-23.4628°, -46.5333°, elevation 774 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).