AI-generatedArmação dos Búzios at a glance
- Best time
- Apr – Oct
- Warmest month
- Feb · 29°
- Warmest sea
- Mar · 24.9°
- Sunshine a year
- 2,390 h
- Rain a year
- 1,235 mm
- Climate
- Tropical
- Time zone
- UTC−3
- Elevation
- 9 m
Climate in Armação dos Búzios
Armação dos Búzios has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. February is the warmest month with average highs of 29 °C, while July is the coolest at 25 °C. With around 2,390 hours of sunshine a year, Armação dos Búzios is sunny; February is the sunniest month with 7.3 hours a day.
Holiday weather through the year
Best time to visit Armação dos Búzios
The best time to visit Armação dos Búzios is from April to October. For a beach holiday – sea from 21 °C, warm and mostly dry – go from April to October. For sightseeing, day trips and hiking, conditions are most comfortable from April to October. The rainy season is from November to March; the wettest month is December with 188 mm.
Armação dos Búzios through the seasons
How the weather changes over the seasons, with averages for each.
Armação dos Búzios in the dry season
Apr – Oct
Good
- 25–28 °C by day
- Sea 23 °C
- 6.4 h of sun a day
- 65 rainy days in all
Armação dos Búzios in the rainy season
Nov – Mar
Good
- 26–29 °C by day
- Sea 24 °C
- 6.8 h of sun a day
- 75 rainy days in all
Which month for what?
Beach & swimming
Apr – Oct
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – Oct
15–28 °C and not too much rain
Rainy months
Nov – Mar
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Armação dos Búzios for you.
Your best months: February – April
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: April – October
Where to go in OctoberSea temperature in October
Good forBeach & swimmingSightseeing & walks
A typical day in October
- Morning, 08:00: about 23°
- Midday, 13:00: about 26°
- Afternoon, 16:00: about 25°
- Evening, 20:00: about 23°
- Night, 23:00: about 22°
05:1617:51
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:02–05:45 · evening 17:21–18:05
- Blue hour
- Morning 04:53–05:02 · evening 18:05–18:13
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Armação dos Búzios compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs stay at about 26° from start to end. The days get 0.6 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 26° | 26° |
| Night-time low | 20° | 21° |
| Sea | 22° | 22° |
| Daylight | 12.3 h | 12.9 h |
What is the weather like in Armação dos Búzios in October?
In October, Armação dos Búzios is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 21.8 °C – refreshing for a swim. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 93 mm in total. The air is often humid and muggy. All in all, October is a good month for a holiday in Armação dos Búzios.
More details for October
- Daylight
- 12 h 35 min05:16 – 17:51
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 23 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 65 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %69 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 20 %44 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Compare two months in Armação dos Búzios
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
February has the better holiday weather in Armação dos Búzios: score 82 against 72. In February, days are 3 °C warmer than in October. The sea is 2 °C warmer in February. The sun shines an hour longer a day in February.
| Month | October | February |
|---|---|---|
| Holiday weather score | 72 | 82better |
| Daytime high | 26° | 29° |
| Night-time low | 20° | 24° |
| Sea | 21.8° | 24.1° |
| Sunshine | 6.2 h | 7.3 hbetter |
| Rainy days | 12 | 12 |
| Rainfall | 93 mmbetter | 125 mm |
| Muggy days | 23better | 28 |
Based on the climate averages 1996–2025.
Armação dos Búzios month by month
The typical weather for every month at a glance.
77January28° · Sea 24° · 7.1 h
In January, Armação dos Búzios is hot: daytime highs average 28 °C, and even at night it stays warm at around 24 °C. The sea averages 23.7 °C – pleasant for swimming. The sun shines for around 7.1 hours a day. It is the rainy season: rain falls on about 15 days, totalling 169 mm. On about 5 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in January82February29° · Sea 24° · 7.3 h
In February, Armação dos Búzios is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 24.1 °C – pleasant for swimming. The sun shines for around 7.3 hours a day. It is the rainy season: rain falls on about 12 days, totalling 125 mm. The air is often humid and muggy. All in all, February is an excellent month for a holiday in Armação dos Búzios.
Armação dos Búzios in February77March29° · Sea 25° · 6.8 h
In March, Armação dos Búzios is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 24.9 °C – pleasant for swimming. The sun shines for around 6.8 hours a day. It is the rainy season: rain falls on about 15 days, totalling 148 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in March82April28° · Sea 25° · 6.7 h
In April, Armação dos Búzios is hot: daytime highs average 28 °C, and even at night it stays warm at around 23 °C. The sea averages 24.9 °C – pleasant for swimming. The sun shines for around 6.7 hours a day. Rain is frequent, with about 12 rainy days and 83 mm in total. The air is often humid and muggy. All in all, April is an excellent month for a holiday in Armação dos Búzios.
Armação dos Búzios in April81May26° · Sea 24° · 6.2 h
In May, Armação dos Búzios is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sea averages 23.7 °C – pleasant for swimming. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 66 mm in total. The air is often humid and muggy. All in all, May is an excellent month for a holiday in Armação dos Búzios.
Armação dos Búzios in May82June25° · Sea 23° · 6.2 h
In June, Armação dos Búzios is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 22.8 °C – refreshing for a swim. Expect around 6.2 hours of sunshine a day. Rain falls on about 7 days, adding up to 43 mm. The air is often humid and muggy. All in all, June is an excellent month for a holiday in Armação dos Búzios.
Armação dos Búzios in June78July25° · Sea 22° · 6.1 h
In July, Armação dos Búzios is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 22.1 °C – refreshing for a swim. Expect around 6.1 hours of sunshine a day. Rain falls on about 7 days, adding up to 42 mm. All in all, July is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in July79August25° · Sea 22° · 6.7 h
In August, Armação dos Búzios is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 21.5 °C – refreshing for a swim. The sun shines for around 6.7 hours a day. Rain falls on about 7 days, adding up to 45 mm. All in all, August is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in August74September25° · Sea 21° · 6.4 h
In September, Armação dos Búzios is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 21.3 °C – refreshing for a swim. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 64 mm in total. The air is often humid and muggy. All in all, September is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in September72October26° · Sea 22° · 6.2 h
In October, Armação dos Búzios is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 21.8 °C – refreshing for a swim. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 93 mm in total. The air is often humid and muggy. All in all, October is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in October68November26° · Sea 23° · 6.1 h
In November, Armação dos Búzios is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sea averages 22.5 °C – refreshing for a swim. Expect around 6.1 hours of sunshine a day. It is the rainy season: rain falls on about 16 days, totalling 167 mm. The air is often humid and muggy. All in all, November is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in November73December28° · Sea 24° · 6.8 h
In December, Armação dos Búzios is hot: daytime highs average 28 °C, and even at night it stays warm at around 23 °C. The sea averages 23.6 °C – pleasant for swimming. The sun shines for around 6.8 hours a day. It is the rainy season: rain falls on about 17 days, totalling 188 mm. The air is often humid and muggy. All in all, December is a good month for a holiday in Armação dos Búzios.
Armação dos Búzios in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Armação dos Búzios
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Pleasant 15–20°
- Warm 20–24°
- Hot 24° and more
- muggy month (15+ muggy days)
WarmOctober: nights around 20°. Tropical nights: a fan or air conditioning helps. Muggy on about 23 days (dew point 18 °C or more).
The coolest nights are in July (19°), the warmest in February (24°). Tropical nights of 20 °C and more are the rule from October to May; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from June to September. It is muggy (dew point 18 °C or more) on about 270 days a year, mostly from September to June.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 77 | 28° | 24° | 23.7° | 7.1 h | 15 | 169 |
| FebruaryFeb | 82 | 29° | 24° | 24.1° | 7.3 h | 12 | 125 |
| MarchMar | 77 | 29° | 24° | 24.9° | 6.8 h | 15 | 148 |
| AprilApr | 82 | 28° | 23° | 24.9° | 6.7 h | 12 | 83 |
| MayMay | 81 | 26° | 21° | 23.7° | 6.2 h | 10 | 66 |
| JuneJun | 82 | 25° | 19° | 22.8° | 6.2 h | 7 | 43 |
| JulyJul | 78 | 25° | 19° | 22.1° | 6.1 h | 7 | 42 |
| AugustAug | 79 | 25° | 19° | 21.5° | 6.7 h | 7 | 45 |
| SeptemberSep | 74 | 25° | 19° | 21.3° | 6.4 h | 9 | 64 |
| OctoberOct | 72 | 26° | 20° | 21.8° | 6.2 h | 12 | 93 |
| NovemberNov | 68 | 26° | 21° | 22.5° | 6.1 h | 16 | 167 |
| DecemberDec | 73 | 28° | 23° | 23.6° | 6.8 h | 17 | 188 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
22.75° S, 41.88° W · 9 m · America/Sao_Paulo
Sea temperature
Sea temperature in Armação dos Búzios
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 20.9 – 22.8 °C
Swimming season: all year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Armação dos Búzios ranges from 21.3 °C in September to 24.9 °C in March. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea warms up slowly: it is warmest in March, while the air already peaks in February. The sea temperature varies from year to year: in March, eight out of ten years were between 23.6 and 26.0 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 23.7° | 22.5° | 24.7° | pleasant |
| FebruaryFeb | 24.1° | 22.7° | 25.3° | pleasant |
| MarchMar | 24.9° | 23.6° | 26.0° | pleasant |
| AprilApr | 24.9° | 24.5° | 25.3° | pleasant |
| MayMay | 23.7° | 22.9° | 24.5° | pleasant |
| JuneJun | 22.8° | 21.9° | 23.5° | refreshing |
| JulyJul | 22.1° | 21.3° | 22.7° | refreshing |
| AugustAug | 21.5° | 20.8° | 22.5° | refreshing |
| SeptemberSep | 21.3° | 20.6° | 22.3° | refreshing |
| OctoberOct | 21.8° | 20.9° | 22.8° | refreshing |
| NovemberNov | 22.5° | 21.5° | 23.5° | refreshing |
| DecemberDec | 23.6° | 23.0° | 24.5° | pleasant |
Sunshine
Sunshine hours in Armação dos Búzios
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.2 of 12.6 hours of daylight in Armação dos Búzios, 49 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Armação dos Búzios: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Armação dos Búzios has about 12 rainy days with 93 mm of rain in total.
UV index
UV index in Armação dos Búzios
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 11 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in December (UV 12).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 15 min
- Light brown skin
- about 20 min
- Olive skin
- about 25 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Armação dos Búzios
How breezy and how cloudy Armação dos Búzios is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Armação dos Búzios typically peaks at 21 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Aug – Nov.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 65 % of the sky over Armação dos Búzios: mostly cloudy, with about 6.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity
Heat and humidity in Armação dos Búzios
How often the day gets hot in Armação dos Búzios (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Armação dos Búzios has about 1 hot day, with an average daytime high of 26 °C: often muggy. The air feels warmer than the thermometer says: light, airy clothes and slow days help.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Armação dos Búzios
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Armação dos Búzios in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Armação dos Búzios has its best school-holiday weather during the Easter holidays (score 81) and its weakest during October half-term (score 72).
- 81
Easter holidays
Mar – Apr
ExcellentBest holidays
- 28 °C by day
- Sea 25 °C
- 6.7 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 81
May half-term
May – Jun
Excellent
- 26 °C by day
- Sea 24 °C
- 6.2 h of sun a day
- 10 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 79
Summer holidays
Jul – Aug
Good
- 25 °C by day
- Sea 22 °C
- 6.5 h of sun a day
- 7 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 72
October half-term
Oct
Good
- 26 °C by day
- Sea 22 °C
- 6.2 h of sun a day
- 12 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 75
Christmas holidays
Dec – Jan
Good
- 28 °C by day
- Sea 24 °C
- 7.0 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 11 h 35 min
- Distance
- 9,190 km
- Time zone
- UTC−3
- Jet lag
- About 3 days (4 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Brazil
- Currency
- Brazilian Real (BRL)
- Language
- Portuguese
- Sockets
- Type C, N · 127 V
- Traffic
- Drives on the right
- Dialling code
- +55
UK plugs need a travel adapter
Only 127 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Armação dos Búzios compared
Put Armação dos Búzios side by side with another destination.
Armação dos Búzios vs Cabo Frio
In October the holiday weather in Armação dos Búzios and Cabo Frio is about equally good (score 72 vs 71). During the day it is about as warm in Cabo Frio as in Armação dos Búzios. The sea is about equally warm.
| in October | Armação dos Búzios | Cabo Frio |
|---|---|---|
| Holiday weather score | 72 | 71 |
| Daytime high | 26° | 26° |
| Sea | 22° | 22° |
| Sunshine | 6 h | 6 h |
| Rainy days | 12 | 12 |
| Best time | Apr – Oct | Apr – Oct |
Through the year
Best places in the country
Brazil in October: the best places
In October, Armação dos Búzios ranks 3 among the 31 nearest destinations in this country.
- Guarapari29°23°75
- 2Cabo Frio26°22°74
- 3Armação dos BúziosThis page26°22°72
- 4Itaguaí29°22°72
- 5Rio de Janeiro29°22°71
- 6Ipanema29°22°71
- 7Angra dos Reis25°23°65
- 8Ubatuba25°23°65
Places nearby
Near Armação dos Búzios
Other destinations close by.
Places with a similar climate
Places with a climate like Armação dos Búzios
Destinations whose weather through the year is closest to Armação dos Búzios's – good alternatives.
Frequently asked questions about Armação dos Búzios
When is the best time to visit Armação dos Búzios?
The best time to visit Armação dos Búzios is from April to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Armação dos Búzios?
The sea temperature in Armação dos Búzios ranges from 21.3 °C in September to 24.9 °C in March. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Armação dos Búzios in October?
Yes. In October the sea averages 21.8 °C – refreshing for a swim.
What is the warmest month in Armação dos Búzios?
February is the warmest month, with average highs of 29 °C and nights around 24 °C. July is the coolest month at 25 °C.
When does it rain most in Armação dos Búzios?
The rainy season is from November to March; the wettest month is December with 188 mm. The driest month is July with 42 mm.
How many hours of sunshine does Armação dos Búzios get?
Armação dos Búzios gets around 2,390 hours of sunshine a year. The sunniest month is February with 7.3 hours a day; in July there are 6.1 hours a day.
What time zone is Armação dos Búzios in?
Armação dos Búzios is on UTC−3 all year.
How long is the flight from London to Armação dos Búzios?
A nonstop flight from London to Armação dos Búzios takes about 11 h 35 min, for a straight-line distance of about 9,190 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Armação dos Búzios?
Armação dos Búzios has its best school-holiday weather during the Easter holidays (score 81) and its weakest during October half-term (score 72). Holiday ratings (0–100): Easter holidays 81, May half-term 81, summer holidays 79, October half-term 72, Christmas holidays 75.