AI-generatedBelém at a glance
- Best time
- Sep
- Warmest month
- Oct · 32°
- Warmest sea
- Jun · 29.5°
- Sunshine a year
- 2,280 h
- Rain a year
- 2,107 mm
- Climate
- Tropical
- Time zone
- UTC−3
- Elevation
- 15 m
Climate in Belém
Belém has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. October is the warmest month with average highs of 32 °C, while March is the coolest at 29 °C. With around 2,280 hours of sunshine a year, Belém is sunny; August is the sunniest month with 8.5 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: September
Good forBeach & swimming
A typical day in October
- Morning, 08:00: about 28°
- Midday, 13:00: about 32°
- Afternoon, 16:00: about 32°
- Evening, 20:00: about 28°
- Night, 23:00: about 27°
05:5518:04
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:43–06:23 · evening 17:36–18:17
- Blue hour
- Morning 05:35–05:43 · evening 18:17–18:25
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.
What is the weather like in Belém in October?
In October, Belém is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 27 mm. On about 31 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Belém.
More details for October
- Daylight
- 12 h 8 min05:55 – 18:04
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 48 %on averageAll months
- Hot days
- 31 days30 °C or moreAll months
- Time zone
- UTC−3America/Belem
How the score comes together
- Temperatureweight 50 %35 %
- Sunshineweight 20 %80 %
- Few rainy daysweight 30 %82 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Sea temperature in Belém
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 28.4 – 29.2 °C
Swimming season: All year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Belém ranges from 28.4 °C in March to 29.5 °C in June. At 20 °C and more, the sea is warm enough for swimming all year round.
In April the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in June, eight out of ten years were between 29.1 and 29.8 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 28.7° | 28.3° | 29.2° | warm |
| FebruaryFeb | 28.6° | 28.1° | 29.2° | warm |
| MarchMar | 28.4° | 27.7° | 29.4° | warm |
| AprilApr | 28.8° | 28.2° | 29.4° | warm |
| MayMay | 29.2° | 28.6° | 29.6° | very warm |
| JuneJun | 29.5° | 29.1° | 29.8° | very warm |
| JulyJul | 29.4° | 29.1° | 29.9° | very warm |
| AugustAug | 29.3° | 28.9° | 29.8° | very warm |
| SeptemberSep | 29.1° | 28.8° | 29.3° | very warm |
| OctoberOct | 28.9° | 28.4° | 29.2° | warm |
| NovemberNov | 28.9° | 28.4° | 29.2° | warm |
| DecemberDec | 28.9° | 28.4° | 29.3° | warm |
Sunshine hours in Belém
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 7.8 of 12.1 hours of daylight in Belém, 64 % of the day.
Sunshine hours: measured at the weather station 8 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Belém
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 14 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in March (UV 14).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 10 min
- Light brown skin
- about 15 min
- Olive skin
- about 20 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Belém: 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, Belém has about 7 rainy days with 27 mm of rain in total.
Wind and clouds in Belém
How breezy and how cloudy Belém 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 Belém typically peaks at 16 km/h during the day: Beaufort 3, light breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 48 % of the sky over Belém: variable cloud, with about 7.8 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 and humidity in Belém
How often the day gets hot in Belém (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, Belém has about 31 hot days, with an average daytime high of 32 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.
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
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Belém
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Hot 24° and more
- muggy month (10+ muggy days)
HotOctober: nights around 25°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in March (24°), the warmest in November (25°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) on about 365 days a year, mostly all year round.
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 | 41 | 29° | 24° | 28.7° | 4.3 h | 27 | 240 |
| FebruaryFeb | 42 | 29° | 24° | 28.6° | 3.7 h | 27 | 323 |
| MarchMar | 43 | 29° | 24° | 28.4° | 3.8 h | 31 | 448 |
| AprilApr | 45 | 29° | 24° | 28.8° | 4.6 h | 29 | 399 |
| MayMay | 46 | 29° | 24° | 29.2° | 6.0 h | 27 | 264 |
| JuneJun | 50 | 30° | 24° | 29.5° | 7.7 h | 20 | 108 |
| JulyJul | 54 | 30° | 24° | 29.4° | 8.1 h | 15 | 72 |
| AugustAug | 59 | 31° | 25° | 29.3° | 8.5 h | 10 | 38 |
| SeptemberSep | 61 | 32° | 25° | 29.1° | 8.2 h | 7 | 26 |
| OctoberOct | 58 | 32° | 25° | 28.9° | 7.8 h | 7 | 27 |
| NovemberNov | 53 | 32° | 25° | 28.9° | 6.8 h | 8 | 45 |
| DecemberDec | 34 | 31° | 25° | 28.9° | 5.4 h | 19 | 118 |
Climate averages 1996–2025, 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
1.46° S, 48.50° W · 15 m · America/Belem
Best time to visit Belém
The best time to visit Belém is in September. For a beach holiday with the sea above 21 °C, go from August to November. Rain is most frequent from December to July; the wettest month is March with 448 mm.
Belém through the seasons
How the weather changes over the seasons, with averages for each.
Belém in the dry season
Aug – Nov
Fair
- 31–32 °C by day
- Sea 29 °C
- 8 h of sun a day
- 31 rainy days in all
Belém in the rainy season
Dec – Jul
Fair
- 29–31 °C by day
- Sea 29 °C
- 5 h of sun a day
- 196 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Belém for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Compare two months in Belém
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
October and September bring similar holiday weather to Belém (score 58 and 61). Daytime highs are about the same. The sea is about as warm in both months.
| Month | October | September |
|---|---|---|
| Weather score | 58 | 61better |
| Day high | 32° | 32° |
| Night low | 25° | 25° |
| Sea | 28.9° | 29.1° |
| Sunshine | 7.8 h | 8.2 h |
| Rainy days | 7 | 7 |
| Rainfall | 27 mm | 26 mm |
| Muggy days | 31 | 30better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Aug – Nov
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
Dec – Jul
12 or more rainy days
Belém month by month
The typical weather for every month at a glance.
41January29° · Sea 29° · 4 h
In January, Belém is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.7 °C – lovely and warm for swimming. Expect around 4 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 240 mm. On about 9 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a so-so month for a holiday in Belém.
Belém in January42February29° · Sea 29° · 4 h
In February, Belém is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.6 °C – lovely and warm for swimming. The sun is scarce, with only about 4 hours a day. It is the rainy season: rain falls on about 27 days, totalling 323 mm. The air is often humid and muggy. All in all, February is a so-so month for a holiday in Belém.
Belém in February43March29° · Sea 28° · 4 h
In March, Belém is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.4 °C – lovely and warm for swimming. The sun is scarce, with only about 4 hours a day. It is the rainy season: rain falls on about 31 days, totalling 448 mm. The air is often humid and muggy. All in all, March is a so-so month for a holiday in Belém.
Belém in March45April29° · Sea 29° · 5 h
In April, Belém is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.8 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 399 mm. The air is often humid and muggy. All in all, April is a so-so month for a holiday in Belém.
Belém in April46May29° · Sea 29° · 6 h
In May, Belém is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 29.2 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 264 mm. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Belém.
Belém in May50June30° · Sea 30° · 8 h
In June, Belém is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 29.5 °C – almost as warm as a bath. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 20 days, totalling 108 mm. On about 9 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Belém.
Belém in June54July30° · Sea 29° · 8 h
In July, Belém is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 29.4 °C – almost as warm as a bath. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 15 days, totalling 72 mm. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a so-so month for a holiday in Belém.
Belém in July59August31° · Sea 29° · 9 h
In August, Belém is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. The sun shines for around 9 hours a day. Rain is frequent, with about 10 rainy days and 38 mm in total. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Belém.
Belém in August61September32° · Sea 29° · 8 h
In September, Belém is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.1 °C – almost as warm as a bath. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 26 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Belém.
Belém in September58October32° · Sea 29° · 8 h
In October, Belém is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 27 mm. On about 31 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Belém.
Belém in October53November32° · Sea 29° · 7 h
In November, Belém is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 45 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a so-so month for a holiday in Belém.
Belém in November34December31° · Sea 29° · 5 h
In December, Belém is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.9 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 19 days, totalling 118 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is not an ideal month for a holiday in Belém.
Belém in DecemberBelém compared
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Belém vs. Cayenne
In October Belém has the better holiday weather (score 58 vs. 52). During the day it is about as warm in Cayenne as in Belém. The sea in Cayenne is 1 °C cooler.
| in October | Belém | Cayenne |
|---|---|---|
| Holiday score | 58 | 52 |
| Daytime high | 32° | 32° |
| Sea | 29° | 28° |
| Sunshine | 8 h | 8 h |
| Rainy days | 7 | 11 |
| Best time | Sep | Jan – Mar, Sep – Oct |
Through the year
Brazil in October: the best places
In October, Belém ranks 13 of 19 destinations in this country.
- Natal29°27°90
- 2Fortaleza30°27°79
- 3Salvador27°26°78
- 4João Pessoa29°27°75
- 5Belo Horizonte27°75
- 6Rio de Janeiro28°22°71
- 7Ipanema District28°22°71
- 8Porto Alegre24°20°71
- 13BelémThis page32°29°58
Planning a trip to Belém
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Belém 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.
Belém has its best school-holiday weather during October half-term (score 58) and its weakest during the Christmas holidays (score 38).
- 44
Easter holidays
Mar – Apr
Fair
- 29 °C by day
- Sea 29 °C
- 4.4 h of sun a day
- 30 rainy days a month
Keep in mind: Frequent rain
- 47
May half-term
May – Jun
Fair
- 29 °C by day
- Sea 29 °C
- 6.3 h of sun a day
- 26 rainy days a month
Keep in mind: Frequent rain
- 57
Summer holidays
Jul – Aug
Fair
- 31 °C by day
- Sea 29 °C
- 8.4 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 58
October half-term
Oct
FairBest holidays
- 32 °C by day
- Sea 29 °C
- 7.8 h of sun a day
- 7 rainy days a month
Good for: Beach & swimming
- 38
Christmas holidays
Dec – Jan
Poor
- 30 °C by day
- Sea 29 °C
- 4.9 h of sun a day
- 23 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 9 h 25 min
- Distance
- 7,410 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.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Belém
When is the best time to visit Belém?
The best time to visit Belém is in September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Belém?
The sea temperature in Belém ranges from 28.4 °C in March to 29.5 °C in June. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Belém in October?
Yes. In October the sea averages 28.9 °C – lovely and warm for swimming.
What is the warmest month in Belém?
October is the warmest month, with average highs of 32 °C and nights around 25 °C. March is the coolest month at 29 °C.
When does it rain most in Belém?
Rain is most frequent from December to July; the wettest month is March with 448 mm. The driest month is September with 26 mm.
How many hours of sunshine does Belém get?
Belém gets around 2,280 hours of sunshine a year. The sunniest month is August with 8.5 hours a day; in February there are 3.7 hours a day.
What time zone is Belém in?
Belém uses the time zone America/Belem, at UTC−3 all year.
How long is the flight from London to Belém?
A nonstop flight from London to Belém takes about 9 h 25 min, for a straight-line distance of about 7,410 km.
Which school holidays are best for Belém?
Belém has its best school-holiday weather during October half-term (score 58) and its weakest during the Christmas holidays (score 38). Holiday ratings (0–100): Easter holidays 44, May half-term 47, Summer holidays 57, October half-term 58, Christmas holidays 38.
Near Belém
Other destinations close by.
Places with a climate like Belém
Destinations whose weather through the year is closest to Belém's – good alternatives.