Belen climate — normals and trends

Q: What is the climate of Belen?

Belen has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 2,752 mm of precipitation per year.

Q: What is the hottest day ever recorded in Belen?

The hottest day measured in Belen between 1940 and 2025 was 4 October 2023, reaching 35.9 °C.

Q: What is the coldest day in Belen?

The coldest day measured in Belen between 1940 and 2025 was 18 May 1968, at 14.5 °C.

Q: Does it snow in Belen?

Almost never: Belen sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Belen warmed?

Yes: Belen warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Belen?

The wettest day measured in Belen between 1940 and 2025 was 31 August 2016, with 198 mm of rain in 24 hours.

Q: What was the windiest day in Belen?

The windiest day measured in Belen between 1940 and 2025 was 21 August 2020, with winds reaching 20.5 km/h.

Q: What is the warmest month in Belen?

The warmest month in Belen is January (25.9 °C on average); the coldest is July (24.6 °C).

Q: How much does it rain in Belen?

Belen receives on average 2,752 mm of precipitation per year, spread over about 312 rainy days.

Q: Is it sunny in Belen?

Belen gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Belen (Peru) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.5 °C and it receives 2,752 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is January (25.9 °C on average) and the coldest is July (24.6 °C). Rainfall peaks in April.

Belen averages 0 frost days, 131 hot days (≥ 30 °C) and 312 rainy days per year.

Belen has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.9 °C (on 4 October 2023) and the coldest 14.5 °C (on 18 May 1968).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

BelenLoreto

coords: -3.76°, -73.25°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthJanuaryColdest monthJulyWettest monthAprilDriest monthAugust

Mean daily temperature

25.5°C

Average daily high

29.3°C

Average daily low

23.0°C

Annual rainfall

2,752mm

Sunshine / day

8.9h

Mean relative humidity

90%

Average peak wind

7.0km/h

Seasonal range

1.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

131 d/yr

Rainy days (≥ 1 mm)

312 d/yr

Annual snowfall

0.0 cm

Average feels-like high

35.8 °C

Average feels-like low

27.6 °C

Average peak gust

22.6 km/h

Tropical nights (≥ 20 °C)

362 d/yr

Solar radiation

16.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.69 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

35.9 °C

4 October 2023

Coldest day

14.5 °C

18 May 1968

Wettest day

198 mm

31 August 2016

Windiest day

20.5 km/h

21 August 2020

Strongest gust

60.5 km/h

8 November 1980

Hottest feels-like

44.4 °C

27 September 2010

Coldest feels-like

14.9 °C

18 May 1968

Sunniest day

12.0 h

4 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.1 °C20 January 2025	20.2 °C5 July 2025	25.9 °C	3,376 mm	169
2024	35.8 °C25 September 2024	19.7 °C31 May 2024	26.6 °C	2,607 mm	246
2023	35.9 °C4 October 2023	18.2 °C15 June 2023	26.3 °C	2,493 mm	212
2022	35.1 °C29 September 2022	17.4 °C2 November 2022	25.8 °C	2,632 mm	179
2021	34.9 °C14 October 2021	17.6 °C1 July 2021	26.0 °C	2,841 mm	174
2020	34.4 °C27 January 2020	17.2 °C22 August 2020	26.3 °C	2,370 mm	210
2019	35.2 °C5 April 2019	17.9 °C6 August 2019	26.0 °C	3,051 mm	189
2018	33.7 °C24 September 2018	20.3 °C6 September 2018	25.8 °C	2,760 mm	179
2017	35.2 °C17 March 2017	17.5 °C20 July 2017	26.2 °C	2,622 mm	213
2016	35.1 °C2 November 2016	19.6 °C28 April 2016	26.4 °C	2,955 mm	211
2015	34.7 °C22 October 2015	21.5 °C20 June 2015	26.2 °C	3,018 mm	190
2014	34.0 °C26 January 2014	19.8 °C1 July 2014	25.9 °C	2,817 mm	184
2013	34.3 °C3 September 2013	17.3 °C26 July 2013	25.9 °C	2,707 mm	194
2012	34.2 °C11 October 2012	19.7 °C7 August 2012	25.8 °C	2,877 mm	187
2011	33.9 °C1 January 2011	18.8 °C22 August 2011	25.8 °C	2,693 mm	200
2010	35.0 °C2 October 2010	17.1 °C18 July 2010	26.3 °C	2,447 mm	231
2009	34.1 °C31 October 2009	20.7 °C14 June 2009	26.0 °C	2,858 mm	202
2008	34.0 °C29 September 2008	20.2 °C4 June 2008	25.9 °C	2,605 mm	180
2007	34.8 °C7 February 2007	17.5 °C27 July 2007	25.9 °C	2,482 mm	201
2006	34.2 °C25 October 2006	20.0 °C7 September 2006	25.9 °C	2,400 mm	205
2005	34.8 °C16 January 2005	18.3 °C14 September 2005	26.1 °C	2,498 mm	218
2004	34.6 °C28 January 2004	20.0 °C16 June 2004	25.8 °C	2,422 mm	178
2003	33.8 °C15 March 2003	19.1 °C12 September 2003	25.7 °C	2,641 mm	159
2002	33.7 °C8 January 2002	21.0 °C21 June 2002	25.7 °C	2,550 mm	170
2001	33.5 °C9 October 2001	18.0 °C21 June 2001	25.5 °C	2,652 mm	163
2000	33.9 °C4 January 2000	18.0 °C15 July 2000	25.4 °C	2,980 mm	147
1999	33.8 °C30 December 1999	17.8 °C18 August 1999	25.2 °C	2,711 mm	118
1998	33.7 °C5 February 1998	20.0 °C26 June 1998	26.0 °C	2,970 mm	183
1997	34.2 °C31 January 1997	19.6 °C10 August 1997	25.7 °C	2,761 mm	172
1996	33.1 °C13 March 1996	17.3 °C30 June 1996	25.4 °C	3,067 mm	127
1995	33.9 °C10 January 1995	20.6 °C22 September 1995	25.8 °C	2,822 mm	186
1994	32.5 °C17 October 1994	15.7 °C27 June 1994	25.4 °C	3,375 mm	146
1993	32.7 °C18 February 1993	17.9 °C15 July 1993	25.3 °C	2,959 mm	115
1992	34.3 °C3 February 1992	19.5 °C26 July 1992	25.6 °C	2,959 mm	135
1991	33.4 °C16 January 1991	18.9 °C4 August 1991	25.6 °C	2,869 mm	141
1990	32.9 °C26 February 1990	17.6 °C15 September 1990	25.4 °C	3,124 mm	110
1989	33.7 °C30 December 1989	17.3 °C8 July 1989	25.4 °C	2,875 mm	132
1988	33.6 °C11 March 1988	19.0 °C14 July 1988	25.7 °C	2,807 mm	170
1987	34.4 °C10 March 1987	20.2 °C18 June 1987	25.7 °C	2,977 mm	159
1986	33.1 °C1 February 1986	19.2 °C23 July 1986	25.2 °C	3,348 mm	102
1985	33.4 °C27 January 1985	18.3 °C11 June 1985	25.3 °C	2,710 mm	132
1984	33.1 °C17 December 1984	17.9 °C27 August 1984	25.3 °C	3,015 mm	124
1983	35.4 °C1 February 1983	19.9 °C4 August 1983	26.0 °C	2,650 mm	196
1982	32.6 °C6 March 1982	21.1 °C3 August 1982	25.5 °C	2,810 mm	127
1981	35.1 °C23 January 1981	15.8 °C20 July 1981	25.6 °C	2,774 mm	147
1980	34.8 °C1 March 1980	18.5 °C17 September 1980	25.7 °C	2,502 mm	161
1979	34.4 °C19 January 1979	17.7 °C1 June 1979	25.7 °C	2,558 mm	157
1978	34.4 °C15 January 1978	15.8 °C15 August 1978	25.4 °C	2,855 mm	131
1977	33.8 °C30 January 1977	20.1 °C19 May 1977	25.5 °C	2,590 mm	141
1976	33.9 °C26 September 1976	19.0 °C13 July 1976	25.1 °C	2,376 mm	113
1975	32.5 °C4 February 1975	16.2 °C18 July 1975	24.8 °C	3,363 mm	67
1974	33.3 °C29 December 1974	18.8 °C26 July 1974	25.1 °C	2,707 mm	92
1973	33.1 °C14 February 1973	20.5 °C15 May 1973	25.5 °C	2,928 mm	117
1972	34.0 °C19 February 1972	19.9 °C1 September 1972	25.4 °C	2,765 mm	116
1971	32.4 °C9 February 1971	19.8 °C26 August 1971	24.9 °C	3,065 mm	57
1970	33.4 °C2 March 1970	19.7 °C11 July 1970	25.5 °C	2,648 mm	119
1969	33.8 °C27 October 1969	16.9 °C11 July 1969	25.7 °C	2,610 mm	129
1968	33.2 °C22 February 1968	14.5 °C18 May 1968	25.1 °C	2,680 mm	97
1967	32.8 °C13 February 1967	20.1 °C7 July 1967	25.2 °C	2,776 mm	91
1966	34.4 °C7 February 1966	18.6 °C2 July 1966	25.5 °C	2,581 mm	126
1965	33.9 °C29 January 1965	16.7 °C21 August 1965	25.3 °C	2,294 mm	115
1964	34.0 °C12 February 1964	19.0 °C28 July 1964	25.4 °C	2,305 mm	121
1963	33.8 °C1 October 1963	19.8 °C7 August 1963	25.7 °C	2,157 mm	154
1962	33.4 °C17 December 1962	19.5 °C8 July 1962	25.5 °C	2,035 mm	139
1961	33.3 °C17 March 1961	18.9 °C18 June 1961	25.4 °C	2,444 mm	130
1960	33.3 °C29 January 1960	18.9 °C3 September 1960	25.6 °C	2,354 mm	133
1959	33.2 °C22 January 1959	20.7 °C22 May 1959	25.4 °C	2,495 mm	94
1958	33.7 °C17 January 1958	20.4 °C21 June 1958	25.6 °C	2,735 mm	121
1957	32.9 °C10 December 1957	18.6 °C22 July 1957	25.3 °C	2,558 mm	112
1956	31.0 °C15 February 1956	20.5 °C5 July 1956	24.4 °C	3,127 mm	15
1955	32.6 °C30 January 1955	16.7 °C1 August 1955	24.8 °C	2,745 mm	54
1954	33.1 °C28 March 1954	20.9 °C23 July 1954	24.8 °C	2,776 mm	40
1953	31.8 °C26 December 1953	20.2 °C7 July 1953	25.0 °C	2,987 mm	56
1952	32.2 °C8 March 1952	20.0 °C22 June 1952	24.9 °C	2,848 mm	57
1951	32.1 °C11 January 1951	20.6 °C3 June 1951	24.8 °C	3,111 mm	32
1950	31.8 °C24 January 1950	19.7 °C4 August 1950	24.8 °C	2,818 mm	39
1949	31.5 °C1 December 1949	20.3 °C3 July 1949	24.8 °C	2,661 mm	46
1948	32.5 °C22 January 1948	20.4 °C30 July 1948	25.0 °C	2,427 mm	47
1947	32.1 °C17 March 1947	20.3 °C20 May 1947	24.7 °C	3,193 mm	28
1946	32.4 °C19 February 1946	19.6 °C21 July 1946	24.6 °C	2,877 mm	26
1945	31.9 °C26 August 1945	20.9 °C19 May 1945	24.9 °C	2,571 mm	57
1944	32.0 °C18 February 1944	21.3 °C28 June 1944	25.0 °C	2,654 mm	45
1943	31.3 °C21 January 1943	20.5 °C14 April 1943	24.3 °C	2,629 mm	26
1942	31.4 °C4 January 1942	18.9 °C21 June 1942	24.3 °C	3,161 mm	24
1941	31.8 °C9 February 1941	20.8 °C31 May 1941	24.8 °C	3,435 mm	37
1940	32.8 °C15 January 1940	21.4 °C3 July 1940	25.1 °C	2,281 mm	69

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

29.8 °C

+0.5 °C

Hot days (≥ 30 °C)

169 d/yr

+38

Frost days (< 0 °C)

0 d/yr

Annual rainfall

3376 mm

+624 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.4 °C	+0.7 °C	263 mm	+23 mm
Feb	29.4 °C	-0.2 °C	315 mm	+76 mm
Mar	29.4 °C	0.0 °C	384 mm	+81 mm
Apr	30.1 °C	+1.1 °C	370 mm	+53 mm
May	29.2 °C	+0.6 °C	326 mm	+51 mm
Jun	29.4 °C	+1.1 °C	311 mm	+101 mm
Jul	28.9 °C	+0.5 °C	145 mm	-12 mm
Aug	30.1 °C	+0.7 °C	180 mm	+32 mm
Sep	30.3 °C	+0.5 °C	227 mm	+51 mm
Oct	30.0 °C	+0.1 °C	262 mm	+51 mm
Nov	29.6 °C	0.0 °C	342 mm	+111 mm
Dec	30.7 °C	+1.1 °C	251 mm	+7 mm

The year's extremes

Hottest day

34.1 °C

20 Jan 2025

Coldest day

20.2 °C

5 Jul 2025

Wettest day

63.8 mm

6 Jun 2025

Windiest day

15.5 km/h

2 Jul 2025

Strongest gust

38.9 km/h

16 Feb 2025

Hottest feels-like

41.1 °C

22 Sep 2025

Coldest feels-like

22.0 °C

2 Jul 2025

Sunniest day

12.0 h

15 Jan 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Belen?

Belen has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 2,752 mm of precipitation per year.

What is the hottest day ever recorded in Belen?

The hottest day measured in Belen between 1940 and 2025 was 4 October 2023, reaching 35.9 °C.

What is the coldest day in Belen?

The coldest day measured in Belen between 1940 and 2025 was 18 May 1968, at 14.5 °C.

Does it snow in Belen?

Almost never: Belen sees virtually no snow, with about 0 frost days per year.

Has the climate of Belen warmed?

Yes: Belen warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Belen?

The wettest day measured in Belen between 1940 and 2025 was 31 August 2016, with 198 mm of rain in 24 hours.

What was the windiest day in Belen?

The windiest day measured in Belen between 1940 and 2025 was 21 August 2020, with winds reaching 20.5 km/h.

What is the warmest month in Belen?

The warmest month in Belen is January (25.9 °C on average); the coldest is July (24.6 °C).

How much does it rain in Belen?

Belen receives on average 2,752 mm of precipitation per year, spread over about 312 rainy days.

Is it sunny in Belen?

Belen gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Are there tropical nights in Belen?

Yes: Belen has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Belen?

In Belen, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 27 September 2010, and the lowest was 14.9 °C on 18 May 1968.

Compare Belen with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Belen

Other cities — Peru

All cities in Peru →