Jacareí weather in December
In December, Jacareí sees average daytime highs of 28°C and overnight lows near 19°C, with 172 mm of rain across 20.1 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 15% of the time in December, and the air most often feels muggy.
Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Jacareí's 11th-clearest and 5th-windiest month. For the whole year in context, see Jacareí's year-round climate.
- Daytime high
- 28°
- 3rd warmest
- Overnight low
- 19°
- 10th coldest
- Rainfall
- 172 mm
- 20.1 wet days
- Daylight
- 13 h 24 min
- 6:17 AM – 7:43 PM
- Cloud cover
- 72%
- 11th clearest
- Wind
- 7 km/h
- 5th windiest
- Solar energy
- 5.52 kWh/m²
- Travel score
- 4.8
- out of 10
Jacareí is human settlement in Brazil.
- Air quality
- Good
- PM10 24 µg/m³ · 2016
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 28°C through the month.
A typical December day in Jacareí reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, December runs about 1°C warmer than November and on par with 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) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 18 |
| 2 | 27 | 18 |
| 3 | 27 | 18 |
| 4 | 27 | 18 |
| 5 | 27 | 18 |
| 6 | 27 | 19 |
| 7 | 27 | 19 |
| 8 | 27 | 19 |
| 9 | 27 | 19 |
| 10 | 27 | 19 |
| 11 | 27 | 19 |
| 12 | 27 | 19 |
| 13 | 27 | 19 |
| 14 | 28 | 19 |
| 15 | 28 | 19 |
| 16 | 28 | 19 |
| 17 | 28 | 19 |
| 18 | 28 | 19 |
| 19 | 28 | 19 |
| 20 | 28 | 19 |
| 21 | 28 | 19 |
| 22 | 28 | 19 |
| 23 | 28 | 19 |
| 24 | 28 | 19 |
| 25 | 28 | 19 |
| 26 | 28 | 19 |
| 27 | 28 | 19 |
| 28 | 28 | 19 |
| 29 | 28 | 19 |
| 30 | 28 | 19 |
| 31 | 28 | 19 |
Jacareí weather by month
How December compares with the rest of the year at a glance. December is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 20° | 226 | 22.1 | 13.3 | 4.4 |
| Feb | 28° / 20° | 171 | 18.5 | 12.8 | 4.3 |
| Mar | 28° / 19° | 139 | 18.1 | 12.2 | 5.2 |
| Apr | 26° / 17° | 57 | 9.5 | 11.5 | 6.7 |
| May | 24° / 15° | 57 | 7.6 | 10.9 | 7.3 |
| Jun | 23° / 13° | 38 | 5.1 | 10.6 | 7.8 |
| Jul | 23° / 12° | 44 | 5.1 | 10.7 | 7.8 |
| Aug | 24° / 13° | 35 | 5.2 | 11.2 | 7.9 |
| Sep | 25° / 15° | 76 | 9.9 | 11.9 | 6.8 |
| Oct | 26° / 17° | 109 | 13.6 | 12.5 | 5.9 |
| Nov | 27° / 18° | 142 | 16.6 | 13.1 | 5.4 |
| Dec | 28° / 19° | 172 | 20.1 | 13.4 | 4.8 |
Cloud cover in December
The sky is clear or mostly clear about 15% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 72%.
| 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 (%) | 30 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 28 | 28 | 27 | 26 | 26 | 25 | 25 |
| Cloudier (%) | 70 | 72 | 72 | 72 | 73 | 73 | 73 | 72 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 72 | 72 | 73 | 74 | 74 | 75 | 75 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 30 | 70 |
| 2 | 28 | 72 |
| 3 | 28 | 72 |
| 4 | 28 | 72 |
| 5 | 27 | 73 |
| 6 | 27 | 73 |
| 7 | 27 | 73 |
| 8 | 28 | 72 |
| 9 | 27 | 73 |
| 10 | 27 | 73 |
| 11 | 27 | 73 |
| 12 | 28 | 72 |
| 13 | 28 | 72 |
| 14 | 28 | 72 |
| 15 | 28 | 72 |
| 16 | 29 | 71 |
| 17 | 29 | 71 |
| 18 | 30 | 70 |
| 19 | 30 | 70 |
| 20 | 30 | 70 |
| 21 | 30 | 70 |
| 22 | 30 | 70 |
| 23 | 30 | 70 |
| 24 | 30 | 70 |
| 25 | 28 | 72 |
| 26 | 28 | 72 |
| 27 | 27 | 73 |
| 28 | 26 | 74 |
| 29 | 26 | 74 |
| 30 | 25 | 75 |
| 31 | 25 | 75 |
Chance of precipitation in December
Jacareí gets around 172 mm of rain over 20.1 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 65% and peaks near 69% on the wettest days. The odds climb toward the end of the month.
| 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 (%) | 59 | 60 | 60 | 61 | 61 | 62 | 62 | 63 | 63 | 64 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 68 | 68 | 69 | 69 |
| Rain chance (%) | |
|---|---|
| 1 | 59 |
| 2 | 60 |
| 3 | 60 |
| 4 | 61 |
| 5 | 61 |
| 6 | 62 |
| 7 | 62 |
| 8 | 63 |
| 9 | 63 |
| 10 | 64 |
| 11 | 64 |
| 12 | 65 |
| 13 | 65 |
| 14 | 65 |
| 15 | 66 |
| 16 | 66 |
| 17 | 66 |
| 18 | 67 |
| 19 | 67 |
| 20 | 67 |
| 21 | 67 |
| 22 | 67 |
| 23 | 67 |
| 24 | 67 |
| 25 | 68 |
| 26 | 68 |
| 27 | 68 |
| 28 | 68 |
| 29 | 68 |
| 30 | 69 |
| 31 | 69 |
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 65% of days. Sticky, muggy-or-worse air turns up on roughly 67% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 10 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Humid (%) | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 26 | 25 | 24 | 23 | 23 | 22 | 21 | 21 | 20 | 20 | 20 | 20 |
| Muggy (%) | 49 | 50 | 52 | 53 | 54 | 56 | 57 | 58 | 59 | 59 | 61 | 62 | 62 | 64 | 65 | 65 | 66 | 67 | 69 | 69 | 70 | 71 | 72 | 73 | 73 | 74 | 73 | 74 | 75 | 74 | 74 |
| Oppressive (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 5 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 10 | 41 | 49 | 1 |
| 2 | 9 | 40 | 50 | 1 |
| 3 | 8 | 39 | 52 | 1 |
| 4 | 8 | 38 | 53 | 1 |
| 5 | 8 | 37 | 54 | 1 |
| 6 | 7 | 36 | 56 | 1 |
| 7 | 7 | 35 | 57 | 1 |
| 8 | 6 | 34 | 58 | 2 |
| 9 | 6 | 33 | 59 | 2 |
| 10 | 6 | 33 | 59 | 2 |
| 11 | 5 | 32 | 61 | 2 |
| 12 | 5 | 31 | 62 | 2 |
| 13 | 5 | 31 | 62 | 2 |
| 14 | 4 | 30 | 64 | 2 |
| 15 | 4 | 29 | 65 | 2 |
| 16 | 4 | 29 | 65 | 2 |
| 17 | 4 | 28 | 66 | 2 |
| 18 | 4 | 27 | 67 | 2 |
| 19 | 3 | 26 | 69 | 2 |
| 20 | 3 | 26 | 69 | 2 |
| 21 | 3 | 25 | 70 | 2 |
| 22 | 3 | 24 | 71 | 2 |
| 23 | 3 | 23 | 72 | 2 |
| 24 | 2 | 23 | 73 | 2 |
| 25 | 2 | 22 | 73 | 3 |
| 26 | 2 | 21 | 74 | 3 |
| 27 | 2 | 21 | 73 | 4 |
| 28 | 2 | 20 | 74 | 4 |
| 29 | 1 | 20 | 75 | 4 |
| 30 | 1 | 20 | 74 | 5 |
| 31 | 1 | 20 | 74 | 5 |
Wind in December
Winds average 7 km/h in December.
Across December, daily wind ranges from about 7 km/h on the calmest days to 8 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) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in December
Daylight runs from about 13 h 18 min at the start of December to 13 h 24 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 6:14 AM to 6:25 AM, and sunset from 7:34 PM to 7:49 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) | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 |
| Sunrise (AM) | 6:14 | 6:14 | 6:14 | 6:14 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:25 |
| Sunset (PM) | 7:34 | 7:34 | 7:35 | 7:36 | 7:36 | 7:37 | 7:37 | 7:38 | 7:39 | 7:39 | 7:40 | 7:41 | 7:41 | 7:42 | 7:42 | 7:43 | 7:43 | 7:44 | 7:44 | 7:45 | 7:45 | 7:46 | 7:46 | 7:47 | 7:47 | 7:48 | 7:48 | 7:48 | 7:49 | 7:49 | 7:49 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.3 | 6:14 | 7:34 |
| 2 | 13.3 | 6:14 | 7:34 |
| 3 | 13.3 | 6:14 | 7:35 |
| 4 | 13.4 | 6:14 | 7:36 |
| 5 | 13.4 | 6:14 | 7:36 |
| 6 | 13.4 | 6:14 | 7:37 |
| 7 | 13.4 | 6:15 | 7:37 |
| 8 | 13.4 | 6:15 | 7:38 |
| 9 | 13.4 | 6:15 | 7:39 |
| 10 | 13.4 | 6:15 | 7:39 |
| 11 | 13.4 | 6:16 | 7:40 |
| 12 | 13.4 | 6:16 | 7:41 |
| 13 | 13.4 | 6:16 | 7:41 |
| 14 | 13.4 | 6:17 | 7:42 |
| 15 | 13.4 | 6:17 | 7:42 |
| 16 | 13.4 | 6:17 | 7:43 |
| 17 | 13.4 | 6:18 | 7:43 |
| 18 | 13.4 | 6:18 | 7:44 |
| 19 | 13.4 | 6:18 | 7:44 |
| 20 | 13.4 | 6:19 | 7:45 |
| 21 | 13.4 | 6:19 | 7:45 |
| 22 | 13.4 | 6:20 | 7:46 |
| 23 | 13.4 | 6:20 | 7:46 |
| 24 | 13.4 | 6:21 | 7:47 |
| 25 | 13.4 | 6:21 | 7:47 |
| 26 | 13.4 | 6:22 | 7:48 |
| 27 | 13.4 | 6:22 | 7:48 |
| 28 | 13.4 | 6:23 | 7:48 |
| 29 | 13.4 | 6:23 | 7:49 |
| 30 | 13.4 | 6:24 | 7:49 |
| 31 | 13.4 | 6:25 | 7:49 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 5.52 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 5.52 kWh/m² in December across the year — December's 5.52 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) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.5 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.5 | Bright |
| 9 | 5.5 | Bright |
| 10 | 5.5 | Bright |
| 11 | 5.5 | Bright |
| 12 | 5.5 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.5 | Bright |
| 15 | 5.5 | Bright |
| 16 | 5.5 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.5 | Bright |
| 20 | 5.5 | Bright |
| 21 | 5.5 | Bright |
| 22 | 5.5 | Bright |
| 23 | 5.5 | Bright |
| 24 | 5.5 | Bright |
| 25 | 5.5 | Bright |
| 26 | 5.5 | Bright |
| 27 | 5.5 | Bright |
| 28 | 5.5 | Bright |
| 29 | 5.4 | Bright |
| 30 | 5.4 | Bright |
| 31 | 5.4 | Bright |
Hazard calendar for Jacareí
In December, Jacareí sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Jacareí's rainy season runs October–March, when most of the year's rain falls.
Is December a good time to visit Jacareí?
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 Jacareí for sightseeing.
What to pack for Jacareí in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Jacareí sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.
Sea temperature near Jacareí in December
The nearest coast averages about 25°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 64 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 Jacareí in December
Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Jacareí peaks around February 8 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 6 (high).
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) | 15 | 15 | 12 | 9 | 7 | 6 | 6 | 8 | 8 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 8 | Very high |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Jacareí 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 Jacareí is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 16 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) | 16 | 17 | 19 | 21 | 27 | 32 | 31 | 28 | 28 | 20 | 16 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 17 | Moderate |
| Mar | 19 | Moderate |
| Apr | 21 | Moderate |
| May | 27 | Moderate |
| Jun | 32 | Moderate |
| Jul | 31 | Moderate |
| Aug | 28 | Moderate |
| Sep | 28 | Moderate |
| Oct | 20 | Moderate |
| Nov | 16 | Moderate |
| Dec | 16 | Moderate |
Where is Jacareí?
Jacareí sits at 23.3°S, 46.0°W, 574 m above sea level, in Brazil. The nearest listed city is Guararema, 14 km away.
Topography around Jacareí
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jacareí.
Within 3 km, the terrain around Jacareí has only modest variations in elevation — a maximum elevation change of 129 m around an average of 589 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 295 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,071 m.
The land around Jacareí is covered by artificial surfaces (54%), trees (21%) and grassland (20%) within 3 km, grassland (44%) and trees (37%) within 16 km, and trees (52%) and grassland (26%) 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 Jacareí (-23.3053°, -45.9658°, elevation 574 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).