Belém
Elevation 10 m1.46° S, 48.50° W
When to go?
Mean 28 °C, 28 rain days in the month (314 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 9 days in 10
- Torrential rain11 mm per rain day
Mean 27 °C, 27 rain days in the month (364 mm).
Against
- Hothighs of 31 °C
- Often rainyrain almost every day
- Torrential rain13 mm per rain day
Mean 27 °C, 31 rain days in the month (452 mm).
Against
- Hothighs of 31 °C
- Often rainyrain almost every day
- Torrential rain15 mm per rain day
Mean 28 °C, 29 rain days in the month (396 mm).
Against
- Hothighs of 31 °C
- Often rainyrain almost every day
- Torrential rain14 mm per rain day
Mean 28 °C, 26 rain days in the month (303 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 8 days in 10
- Torrential rain12 mm per rain day
Mean 28 °C, 19 rain days in the month (168 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 33 °C
- Often rainyrain on 6 days in 10
Mean 28 °C, 14 rain days in the month (143 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 33 °C
Mean 28 °C, 10 rain days in the month (85 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 33 °C
Mean 28 °C, 7 rain days in the month (56 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 33 °C
Mean 28 °C, 7 rain days in the month (54 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 33 °C
Mean 28 °C, 9 rain days in the month (79 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 33 °C
Mean 28 °C, 19 rain days in the month (180 mm).
Good for
- Ideal for the seawater at 29 °C
Against
- Hothighs of 32 °C
- Often rainyrain on 6 days in 10
No ideal month: the best months are September–October, the least hot. Ideal for the sea: June–December. Avoid November–August (hot, at times often rainy and torrential rain).
What is the climate like?
Temperature and rain
Monthly min and max temperature (°C)
Monthly min and max temperature (°C)
How much it rains
Rain days and how much water
Rain days and how much water
Bars: length = rain days, thickness = mm on a rain day, area = the month's rain. 3 mm a day7 mm a day15 mm a day
Colour = the month's rain: 103060100160250400mm
Daylight hours
Daylight and sky: sunrise, sunset and cloud cover
daylight under a clear sky (average share)daylight under cloud
daylight under a clear sky (average share)daylight under cloud
Times on the 15th of each month, in local time: daylight saving where and when it applies, standard time in the other months.
Sea temperature: Marajó Bay
Monthly mean sea temperature: Marajó Bay (°C)
Monthly mean sea temperature: Marajó Bay (°C)
Effect of climate change
Today's climate (1996–2025) compared with 1961–1990:
In short
Year by year
Temperature of each year
Against 1961–1990 the mean temperature of today (1996–2025) has changed by +0.5 °C; in the last ten years by +0.7 °C. Warmest year: 2024 (+1.4 °C), coldest: 1974 (−0.8 °C).
January and December warmed the most (+0.7 and +0.7 °C), November the least (+0.3 °C).
Warming stripes: after an idea by Ed Hawkins (University of Reading), showyourstripes.info, CC BY 4.0.
Rain of each year (% against 1961–1990)
more rain than in 1961–1990less rain
Rain in a year: no clear trend, dry and wet years alternate as before.
The sea, then and now
+0.5 °Cthe sea today, compared with 1961–1990