Measurements:
°C
°F
Itanhaem
62°F
W 6 mph
Feels like: 62°F
Precip: 20%
World Resorts Brazil Itanhaem Weather May Weather in Itanhaem

Itanhaem Weather: May

Average Day Temperature: 77.7°F
Average Night Temperature: 67.5°F
Sea Water Temperature: 77.6°F
Number of Sunny Days: 15 days
Sunshine Hours: 10.7 - 11.2 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.1 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 90°F. The lowest night temperature was 53°F. The average values for day and night temperatures during May were 74.1°F и 65.6°F respectivly.

Itanhaem Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Itanhaem was 76.6°F. The maximum and minimum values were 72.6°F and 80.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Itanhaem is 1.1 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 4.9 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Itanhaem in May is 6.4 hours.

Best Time to Visit Itanhaem
The most sunny months:
July 17 days
August 16 days
May 15 days
The most warm months:
February 85.8 °F
January 85.0 °F
March 85.0 °F
Warmest sea temperature:
February 85.3 °F
March 83.9 °F
January 83.7 °F
The most cold months:
July 74.8 °F
August 75.1 °F
June 76.6 °F
The most rainy months:
February 7 days
January 7 days
December 6 days
The most windy months:
October 6 mph
December 5 mph
September 5 mph

Itanhaem on the Weather Map

24 Hours Weather Forecast
Itanhaem
Local time: 17:30
18 jun, thursday
1800 62°F
W
6 mph
2100 60°F
SW
7 mph
19 jun, friday
0000 58°F
SW
6 mph
0300 56°F
S
3 mph
0600 54°F
S
4 mph
0900 64°F
S
3 mph
1200 72°F
NW
2 mph
1500 74°F
W
2 mph