Una, Brazil experiences average highs of 28°C (82°F) and lows of 22°C (72°F) throughout the year. Rainfall is frequent, averaging about 19 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have cooled by 0.8°C (1.4°F) across the available records.
Una, Brazil Weather & Climate 2026
Monthly climate averages for Una, Brazil. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Dec 
Wetter season: Jan–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.3/10
Best: June, July, August, September
UV Index
8
High
Temperature 28°C / 22°C
Feels Like 31°C / 25°C
Rainy Days 19
Rainfall 116 mm
Sunshine 10 h
Humidity 85%
Wind Speed 16 km/h
Dew Point 22°C
Hottest Month
30°C
February
Avg Low24°C
Rain18days
Coldest Month
19°C
July
Avg High25°C
Rain20days
Driest Month
15days
September
Avg High26°C
Avg Low20°C
Windiest Month
17 km/h
October (Gusts 34)
Sea Temperature
26°C – 29°C
Warmest water: March (
29.2°C
)
Worst Time to Visit
Consider avoiding January, February, March, April due to heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:01
Daylight 11.2h
Sunset 17:15
Live conditions—
Una on the map · live conditions
Una, Brazil
- Continent
- Americas
- Country
- Brazil
- City
- Una
- Population
- 18.1K
- Coordinates
- -15.29°, -39.08°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 27°C
Avg Low 22°C
Rain 18 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 29°C
Avg Low 23°C
Rain 19 days/mo
Autumn
Mar–May
Avg High 28°C
Avg Low 23°C
Rain 21 days/mo
Winter
Jun–Aug
Avg High 26°C
Avg Low 20°C
Rain 19 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 29°C / 23°C . Feb: 30°C / 24°C . Mar: 30°C / 23°C . Apr: 29°C / 23°C . May: 27°C / 22°C . Jun: 26°C / 20°C . Jul: 25°C / 19°C . Aug: 25°C / 20°C . Sep: 26°C / 20°C . Oct: 28°C / 22°C . Nov: 28°C / 22°C . Dec: 29°C / 23°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 106 mm. Feb: 80 mm. Mar: 110 mm. Apr: 170 mm. May: 120 mm. Jun: 102 mm. Jul: 92 mm. Aug: 78 mm. Sep: 68 mm. Oct: 128 mm. Nov: 192 mm. Dec: 151 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 83%. Feb: 83%. Mar: 84%. Apr: 86%. May: 86%. Jun: 87%. Jul: 86%. Aug: 84%. Sep: 82%. Oct: 84%. Nov: 85%. Dec: 84%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 16 km/h . Feb: 15 km/h . Mar: 15 km/h . Apr: 15 km/h . May: 15 km/h . Jun: 15 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 16 km/h . Oct: 17 km/h . Nov: 17 km/h . Dec: 16 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 11h. Mar: 11h. Apr: 10h. May: 10h. Jun: 10h. Jul: 10h. Aug: 10h. Sep: 11h. Oct: 10h. Nov: 10h. Dec: 11h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 27°C . Feb: 28°C . Mar: 29°C . Apr: 29°C . May: 28°C . Jun: 27°C . Jul: 26°C . Aug: 26°C . Sep: 26°C . Oct: 27°C . Nov: 27°C . Dec: 27°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 9. Mar: UV 9. Apr: UV 8. May: UV 6. Jun: UV 6. Jul: UV 6. Aug: UV 7. Sep: UV 8. Oct: UV 8. Nov: UV 8. Dec: UV 9.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have cooled by 0.8°C (1.4°F) across the available records. Average rainfall is trending wetter by about 34 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jan 2025 · 29°C | Feb · 30°C |
| Coldest month | Jul 2025 · 19°C | Jul · 19°C |
| Wettest month | May 2025 · 249 mm | Nov · 192 mm |
| Windiest month | Oct 2025 · 18 km/h | Oct · 17 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Wet May
Wet June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Wet November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 29°C / 23°C | 35°C / 27°C | 20days (106 mm) Wet | 11.1h Excellent | 83% Humid | 8.6 Very High | Wet | View Details |
| February | 30°C / 24°C | 35°C / 28°C | 18days (80 mm) Wet | 11.2h Excellent | 83% Humid | 9.1 Very High | Wet | View Details |
| March | 30°C / 23°C | 35°C / 27°C | 22days (110 mm) Wet | 10.8h Excellent | 84% Humid | 8.8 Very High | Wet | View Details |
| April | 29°C / 23°C | 33°C / 26°C | 22days (170 mm) Wet | 10.1h Excellent | 86% Very Muggy | 7.6 Very High | Wet | View Details |
| May | 27°C / 22°C | 31°C / 24°C | 20days (120 mm) Wet | 10.1h Excellent | 86% Very Muggy | 6.4 High | Wet | View Details |
| June best | 26°C / 20°C | 29°C / 22°C | 19days (102 mm) Wet | 10h Excellent | 87% Very Muggy | 5.8 High | Excellent | View Details |
| July best | 25°C / 19°C | 27°C / 21°C | 20days (92 mm) Wet | 10h Excellent | 86% Very Muggy | 5.9 High | Excellent | View Details |
| August best | 25°C / 20°C | 28°C / 21°C | 18days (78 mm) Wet | 10.3h Excellent | 84% Humid | 6.8 High | Excellent | View Details |
| September best | 26°C / 20°C | 29°C / 23°C | 15days (68 mm) Wet | 10.7h Excellent | 82% Humid | 8.1 Very High | Excellent | View Details |
| October | 28°C / 22°C | 31°C / 25°C | 19days (128 mm) Wet | 10.4h Excellent | 84% Humid | 8.3 Very High | Wet | View Details |
| November | 28°C / 22°C | 32°C / 25°C | 20days (192 mm) Wet | 9.8h Good | 85% Humid | 8 Very High | Wet | View Details |
| December | 29°C / 23°C | 33°C / 27°C | 18days (151 mm) Wet | 10.8h Excellent | 84% Humid | 8.6 Very High | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Una are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Una, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Una is February, with average daytime highs of 30°C (85°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Una is July, with average overnight lows of 19°C (67°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Una is November, averaging 192mm of precipitation across 20 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Una runs through March, April, January, May, with the heaviest rainfall in March. Based on 10-year averages for Una.
Una receives approximately 125 sunshine hours per year. The sunniest month is February with around 11 hours. Based on climate data for Una.
The least favorable months to visit Una are January, February, March, April, primarily due to heavy rainfall, oppressive humidity. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Una is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Una is 85%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 27°C (81°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Una are 16 km/h (10 mph). The windiest month is October with peak winds reaching 17 km/h (11 mph) (gusts up to 34 km/h / 21 mph).
Una averages 1 clear-sky days per month with overall cloud cover around 58%. The clearest skies occur in July.
The annual average dew point in Una is 22°C (72°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Una has a Tropical Rainforest climate, classified as Af under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Una ranges from 25°C (77°F) to 31°C (88°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
Yes, June is a great time to visit Una. It earns a climate score of 7.8/10 with Excellent.
For June in Una, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 26°C (79°F) and 19 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
Last updated: