Itanhaém weather in March
In March, Itanhaém sees average daytime highs of 26°C and overnight lows near 23°C, with 212 mm of rain across 21.7 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 25% of the time in March, and the air most often feels oppressive.
Daylight stretches from about 12 h 30 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Itanhaém's 6th-clearest and 9th-windiest month. For the whole year in context, see Itanhaém's year-round climate.
- Daytime high
- 26°
- 3rd warmest
- Overnight low
- 23°
- 10th coldest
- Rainfall
- 212 mm
- 21.7 wet days
- Daylight
- 12 h 12 min
- 7:12 AM – 7:22 PM
- Cloud cover
- 62%
- 6th clearest
- Wind
- 11 km/h
- 9th windiest
- Solar energy
- 4.89 kWh/m²
- Travel score
- 5.0
- out of 10
Itanhaém is human settlement in Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 26°C through the month.
A typical March day in Itanhaém reaches about 26°C in the afternoon and slips back to 23°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, March runs on par with February and about 1°C warmer than April.
| 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 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 24 |
| 2 | 27 | 24 |
| 3 | 27 | 24 |
| 4 | 27 | 24 |
| 5 | 26 | 24 |
| 6 | 26 | 24 |
| 7 | 26 | 24 |
| 8 | 26 | 24 |
| 9 | 26 | 24 |
| 10 | 26 | 24 |
| 11 | 26 | 24 |
| 12 | 26 | 24 |
| 13 | 26 | 24 |
| 14 | 26 | 24 |
| 15 | 26 | 24 |
| 16 | 26 | 24 |
| 17 | 26 | 23 |
| 18 | 26 | 23 |
| 19 | 26 | 23 |
| 20 | 26 | 23 |
| 21 | 26 | 23 |
| 22 | 26 | 23 |
| 23 | 26 | 23 |
| 24 | 26 | 23 |
| 25 | 26 | 23 |
| 26 | 26 | 23 |
| 27 | 26 | 23 |
| 28 | 26 | 23 |
| 29 | 26 | 23 |
| 30 | 26 | 23 |
| 31 | 26 | 23 |
Itanhaém weather by month
How March compares with the rest of the year at a glance. March 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 | 27° / 24° | 227 | 22.9 | 13.3 | 4.6 |
| Feb | 27° / 24° | 211 | 19.7 | 12.8 | 4.7 |
| Mar | 26° / 23° | 212 | 21.7 | 12.2 | 5.0 |
| Apr | 25° / 22° | 137 | 14.6 | 11.5 | 6.2 |
| May | 23° / 20° | 125 | 13.5 | 10.8 | 6.4 |
| Jun | 22° / 18° | 101 | 10.4 | 10.5 | 6.6 |
| Jul | 21° / 17° | 107 | 10.4 | 10.7 | 6.6 |
| Aug | 21° / 18° | 88 | 10.1 | 11.2 | 6.5 |
| Sep | 21° / 19° | 141 | 14.2 | 11.9 | 5.8 |
| Oct | 23° / 20° | 155 | 16.7 | 12.6 | 5.5 |
| Nov | 24° / 21° | 163 | 17 | 13.2 | 5.6 |
| Dec | 25° / 23° | 174 | 19.2 | 13.5 | 5.2 |
Cloud cover in March
The sky is clear or mostly clear about 25% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 22% of March, with mostly cloudy or overcast conditions the remaining 53%.
| 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 (%) | 46 | 46 | 46 | 47 | 47 | 47 | 48 | 47 | 47 | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 46 | 47 | 47 | 47 | 46 | 47 | 47 | 47 | 48 | 48 | 48 | 50 | 50 | 51 |
| Cloudier (%) | 54 | 54 | 54 | 53 | 53 | 53 | 52 | 53 | 53 | 52 | 52 | 52 | 52 | 53 | 53 | 54 | 54 | 54 | 53 | 53 | 53 | 54 | 53 | 53 | 53 | 52 | 52 | 52 | 50 | 50 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 46 | 54 |
| 2 | 46 | 54 |
| 3 | 46 | 54 |
| 4 | 47 | 53 |
| 5 | 47 | 53 |
| 6 | 47 | 53 |
| 7 | 48 | 52 |
| 8 | 47 | 53 |
| 9 | 47 | 53 |
| 10 | 48 | 52 |
| 11 | 48 | 52 |
| 12 | 48 | 52 |
| 13 | 48 | 52 |
| 14 | 47 | 53 |
| 15 | 47 | 53 |
| 16 | 46 | 54 |
| 17 | 46 | 54 |
| 18 | 46 | 54 |
| 19 | 47 | 53 |
| 20 | 47 | 53 |
| 21 | 47 | 53 |
| 22 | 46 | 54 |
| 23 | 47 | 53 |
| 24 | 47 | 53 |
| 25 | 47 | 53 |
| 26 | 48 | 52 |
| 27 | 48 | 52 |
| 28 | 48 | 52 |
| 29 | 50 | 50 |
| 30 | 50 | 50 |
| 31 | 51 | 49 |
Chance of precipitation in March
Itanhaém gets around 212 mm of rain over 21.7 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 70% and peaks near 72% 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 (%) | 68 | 68 | 68 | 68 | 69 | 69 | 69 | 70 | 70 | 70 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 71 | 71 | 70 | 70 | 69 | 69 | 68 | 67 | 66 | 65 | 64 |
| Rain chance (%) | |
|---|---|
| 1 | 68 |
| 2 | 68 |
| 3 | 68 |
| 4 | 68 |
| 5 | 69 |
| 6 | 69 |
| 7 | 69 |
| 8 | 70 |
| 9 | 70 |
| 10 | 70 |
| 11 | 71 |
| 12 | 71 |
| 13 | 71 |
| 14 | 71 |
| 15 | 72 |
| 16 | 72 |
| 17 | 72 |
| 18 | 72 |
| 19 | 72 |
| 20 | 72 |
| 21 | 71 |
| 22 | 71 |
| 23 | 70 |
| 24 | 70 |
| 25 | 69 |
| 26 | 69 |
| 27 | 68 |
| 28 | 67 |
| 29 | 66 |
| 30 | 65 |
| 31 | 64 |
Humidity in March
Most of March feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the oppressive band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 96% 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 (%) | 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 | 1 | 1 | 1 | 1 |
| Humid (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 8 | 8 |
| Muggy (%) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 20 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 30 | 31 | 31 | 32 | 32 | 32 | 32 | 32 |
| Oppressive (%) | 64 | 64 | 64 | 64 | 64 | 65 | 65 | 64 | 65 | 65 | 65 | 64 | 65 | 65 | 64 | 63 | 62 | 62 | 61 | 60 | 60 | 58 | 58 | 58 | 57 | 57 | 55 | 55 | 55 | 54 | 54 |
| Miserable (%) | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 2 | 17 | 64 | 17 |
| 2 | 0 | 2 | 17 | 64 | 17 |
| 3 | 0 | 2 | 17 | 64 | 17 |
| 4 | 0 | 2 | 17 | 64 | 17 |
| 5 | 0 | 2 | 17 | 64 | 17 |
| 6 | 0 | 2 | 17 | 65 | 16 |
| 7 | 0 | 2 | 17 | 65 | 16 |
| 8 | 0 | 2 | 18 | 64 | 16 |
| 9 | 0 | 2 | 18 | 65 | 15 |
| 10 | 0 | 2 | 18 | 65 | 15 |
| 11 | 0 | 2 | 19 | 65 | 14 |
| 12 | 0 | 2 | 20 | 64 | 14 |
| 13 | 0 | 2 | 20 | 65 | 13 |
| 14 | 0 | 2 | 21 | 65 | 12 |
| 15 | 0 | 2 | 22 | 64 | 12 |
| 16 | 0 | 3 | 23 | 63 | 11 |
| 17 | 0 | 3 | 24 | 62 | 11 |
| 18 | 0 | 3 | 25 | 62 | 10 |
| 19 | 0 | 4 | 26 | 61 | 9 |
| 20 | 0 | 4 | 27 | 60 | 9 |
| 21 | 0 | 4 | 28 | 60 | 8 |
| 22 | 0 | 5 | 29 | 58 | 8 |
| 23 | 0 | 5 | 30 | 58 | 7 |
| 24 | 0 | 5 | 30 | 58 | 7 |
| 25 | 0 | 6 | 31 | 57 | 6 |
| 26 | 0 | 6 | 31 | 57 | 6 |
| 27 | 0 | 7 | 32 | 55 | 6 |
| 28 | 1 | 7 | 32 | 55 | 5 |
| 29 | 1 | 7 | 32 | 55 | 5 |
| 30 | 1 | 8 | 32 | 54 | 5 |
| 31 | 1 | 8 | 32 | 54 | 5 |
Wind in March
Winds average 11 km/h in March.
Across March, daily wind ranges from about 10 km/h on the calmest days to 11 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in March
Daylight runs from about 12 h 30 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 42 minutes over March. Sunrise moves from 7:05 AM to 7:18 AM, and sunset from 7:36 PM to 7:07 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) | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 |
| Sunrise (AM) | 7:05 | 7:05 | 7:06 | 7:06 | 7:07 | 7:07 | 7:07 | 7:08 | 7:08 | 7:09 | 7:09 | 7:10 | 7:10 | 7:11 | 7:11 | 7:12 | 7:12 | 7:12 | 7:13 | 7:13 | 7:14 | 7:14 | 7:15 | 7:15 | 7:15 | 7:16 | 7:16 | 7:17 | 7:17 | 7:17 | 7:18 |
| Sunset (PM) | 7:36 | 7:35 | 7:35 | 7:34 | 7:33 | 7:32 | 7:31 | 7:30 | 7:29 | 7:28 | 7:27 | 7:26 | 7:25 | 7:24 | 7:23 | 7:22 | 7:21 | 7:20 | 7:19 | 7:18 | 7:17 | 7:16 | 7:15 | 7:14 | 7:13 | 7:12 | 7:11 | 7:10 | 7:09 | 7:08 | 7:07 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.5 | 7:05 | 7:36 |
| 2 | 12.5 | 7:05 | 7:35 |
| 3 | 12.5 | 7:06 | 7:35 |
| 4 | 12.5 | 7:06 | 7:34 |
| 5 | 12.4 | 7:07 | 7:33 |
| 6 | 12.4 | 7:07 | 7:32 |
| 7 | 12.4 | 7:07 | 7:31 |
| 8 | 12.4 | 7:08 | 7:30 |
| 9 | 12.3 | 7:08 | 7:29 |
| 10 | 12.3 | 7:09 | 7:28 |
| 11 | 12.3 | 7:09 | 7:27 |
| 12 | 12.3 | 7:10 | 7:26 |
| 13 | 12.2 | 7:10 | 7:25 |
| 14 | 12.2 | 7:11 | 7:24 |
| 15 | 12.2 | 7:11 | 7:23 |
| 16 | 12.2 | 7:12 | 7:22 |
| 17 | 12.2 | 7:12 | 7:21 |
| 18 | 12.1 | 7:12 | 7:20 |
| 19 | 12.1 | 7:13 | 7:19 |
| 20 | 12.1 | 7:13 | 7:18 |
| 21 | 12.1 | 7:14 | 7:17 |
| 22 | 12.0 | 7:14 | 7:16 |
| 23 | 12.0 | 7:15 | 7:15 |
| 24 | 12.0 | 7:15 | 7:14 |
| 25 | 12.0 | 7:15 | 7:13 |
| 26 | 11.9 | 7:16 | 7:12 |
| 27 | 11.9 | 7:16 | 7:11 |
| 28 | 11.9 | 7:17 | 7:10 |
| 29 | 11.9 | 7:17 | 7:09 |
| 30 | 11.8 | 7:17 | 7:08 |
| 31 | 11.8 | 7:18 | 7:07 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 4.89 kWh/m².
For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 5.89 kWh/m² in December across the year — March's 4.89 kWh/m² falls in the middle.
| 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) | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 |
| 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 | 5.3 | Bright |
| 2 | 5.3 | Bright |
| 3 | 5.3 | Bright |
| 4 | 5.2 | Bright |
| 5 | 5.2 | Bright |
| 6 | 5.2 | Bright |
| 7 | 5.2 | Bright |
| 8 | 5.1 | Bright |
| 9 | 5.1 | Bright |
| 10 | 5.1 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.7 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.7 | Bright |
| 25 | 4.7 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.7 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
| 31 | 4.6 | Bright |
Is March a good time to visit Itanhaém?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Itanhaém for sightseeing.
What to pack for Itanhaém in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Itanhaém sees daytime highs around 26°C and nights near 23°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.
Sea temperature near Itanhaém in March
The nearest coast averages about 27°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 18 km away) is warmest in February at about 27°C and coldest in August near 20°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 | 20 | 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 | 20 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Itanhaém in March
Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Itanhaém peaks around January 23 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (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) | 14 | 14 | 9 | 8 | 7 | 6 | 5 | 7 | 7 | 10 | 13 | 13 |
| Level | Extreme | Extreme | Very high | Very high | High | High | Moderate | High | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 7 | High |
| Sep | 7 | Very high |
| Oct | 10 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Air quality in Itanhaém in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Itanhaém is worst in July — around 52 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (February, 24 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) | 25 | 24 | 26 | 28 | 36 | 49 | 52 | 47 | 41 | 31 | 25 | 26 |
| Level | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 25 | Moderate |
| Feb | 24 | Moderate |
| Mar | 26 | Moderate |
| Apr | 28 | Moderate |
| May | 36 | Poor |
| Jun | 49 | Poor |
| Jul | 52 | Poor |
| Aug | 47 | Poor |
| Sep | 41 | Poor |
| Oct | 31 | Moderate |
| Nov | 25 | Moderate |
| Dec | 26 | Moderate |
Where is Itanhaém?
Itanhaém sits at 24.2°S, 46.8°W, 12 m above sea level, in Brazil. The nearest listed city is Mongaguá, 20 km away.
Topography around Itanhaém
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Itanhaém.
Within 3 km, the terrain around Itanhaém has only modest variations in elevation — a maximum elevation change of 70 m around an average of 3 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 700 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,389 m.
The land around Itanhaém is covered by water (43%) and artificial surfaces (29%) within 3 km, water (48%) and trees (44%) within 16 km, and trees (47%) and water (41%) 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 Itanhaém (-24.1831°, -46.7889°, elevation 12 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).