Peru · 1991–2020

Best time to visit
Belen.

July leads for comfortable weather in Belen: typically 32°C by day, 21.1°C at night, with 196 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high32°C

Typical low21.1°C

Rain in July196 mm

Comfort

July

July · June · September

30climate match

Beach

July

July · June · September

50climate match

Outdoors

January

January · February · March

5climate match

The weakest month is March, scoring 5 against July’s 30 — 353 mm of rain falls, and days average 32.8°C, 9° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

632.9° / 22.3°

Feb

1132.9° / 22.2°

Mar

532.8° / 22.4°

Apr

532.6° / 22.3°

May

532.2° / 22.1°

Jun

2331.8° / 21.7°

Jul

3032° / 21.1°

Aug

1733.2° / 21.2°

Sep

1833.7° / 21.7°

Oct

1033.7° / 22.1°

Nov

633.4° / 22.3°

Dec

833° / 22.3°

Monthly climate evidence for Belen — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	32.9°C	22.3°C	312 mm	16.9	12 h 19	6	Strong coverage
February	32.9°C	22.2°C	288 mm	15.6	12 h 14	11	Good coverage
March	32.8°C	22.4°C	353 mm	18.2	12 h 08	5	Strong coverage
April	32.6°C	22.3°C	350 mm	16.9	12 h 02	5	Strong coverage
May	32.2°C	22.1°C	337 mm	17	11 h 57	5	Strong coverage
June	31.8°C	21.7°C	230 mm	15.9	11 h 54	23	Strong coverage
July	32°C	21.1°C	196 mm	14.5	11 h 55	30	Strong coverage
August	33.2°C	21.2°C	257 mm	14.9	11 h 59	17	Good coverage
September	33.7°C	21.7°C	238 mm	14	12 h 05	18	Good coverage
October	33.7°C	22.1°C	275 mm	15.6	12 h 12	10	Strong coverage
November	33.4°C	22.3°C	307 mm	15.9	12 h 17	6	Strong coverage
December	33°C	22.3°C	295 mm	17.6	12 h 20	8	Strong coverage

Records at IQUITOS, 1973–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	42.2°C25 Jan 2017	17.0°C4 Jan 1974	382 mm3 Jan 1982	638 mm1980 · driest 0 mm in 1985	52
February	37.0°C23 Feb 1980	18.0°C15 Feb 1974	400 mm18 Feb 1980	617 mm1980 · driest 23 mm in 1974	51
March	42.2°C23 Mar 2003	18.0°C26 Mar 1975	410 mm28 Mar 2020	705 mm2007 · driest 44 mm in 1974	48
April	36.2°C24 Apr 2010	17.8°C20 Apr 1999	323 mm8 Apr 2019	788 mm1981 · driest 0 mm in 2024	52
May	39.0°C4 May 1974	17.5°C25 May 2007	461 mm11 May 2002	746 mm2002 · driest 1 mm in 1976	53
June	35.2°C22 Jun 1986	15.7°C30 Jun 2021	144 mm22 Jun 1996	400 mm2004 · driest 42 mm in 1974	52
July	37.8°C11 Jul 1983	15.0°C22 Jul 1981	370 mm23 Jul 1973	838 mm1973 · driest 10 mm in 1976	52
August	41.1°C15 Aug 1983	15.0°C16 Aug 1978	279 mm9 Aug 1979	497 mm1979 · driest 33 mm in 1983	52
September	38.4°C30 Sep 2010	16.8°C12 Sep 2003	282 mm24 Sep 1990	365 mm1977 · driest 0 mm in 2022	52
October	37.8°C13 Oct 1987	17.0°C5 Oct 1999	180 mm9 Oct 1981	635 mm2005 · driest 17 mm in 2023	52
November	37.4°C6 Nov 2010	17.2°C12 Nov 1999	270 mm5 Nov 1976	614 mm2003 · driest 30 mm in 1974	52
December	36.5°C27 Dec 1982	18.3°C24 Dec 1998	300 mm6 Dec 1979	689 mm1979 · driest 24 mm in 2024	51

Typical days per month at IQUITOS, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	19	18	7
February	18	18	6
March	18	18	7
April	18	17	7
May	19	17	6
June	18	17	5
July	19	18	5
August	19	19	5
September	18	18	5
October	19	18	5
November	19	18	6
December	20	19	6

How often, not how much — every day in IQUITOS’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	51%	50%	27%	69%	31.6–33.9°C
February	48%	50%	27%	77%	32.2–34.0°C
March	46%	52%	27%	73%	32.0–33.5°C
April	47%	52%	28%	77%	31.5–33.2°C
May	49%	49%	23%	73%	31.1–32.9°C
June	49%	47%	19%	64%	30.5–32.3°C
July	56%	42%	19%	49%	31.2–32.6°C
August	50%	42%	23%	48%	32.1–33.9°C
September	54%	40%	19%	55%	32.5–34.5°C
October	55%	43%	20%	59%	32.7–34.2°C
November	50%	47%	24%	68%	32.3–34.2°C
December	50%	49%	26%	68%	32.2–33.6°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3827811
NOAA station: PE000084377 · IQUITOS
Station distance: 6.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude -3.76°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from IQUITOS is what differs

Iquitos→San Juan→Zúngaro Cocha→Varillal→Aucayo→Gallito→

Or put two places side by side: Belen vs Iquitos

Best time to visitBelen.

July

July

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Belen.

The whole year,
without the guesswork.

Nearby, measured,
and named.