United States · 1991–2020

Best time to visit
Peru.

September leads for comfortable weather in Peru: typically 25.4°C by day, 11.7°C at night, with 77 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.4°C

Typical low11.7°C

Rain in September77 mm

Comfort

September

September · August · May

81climate match

Beach

July

July · August · June

70climate match

Outdoors

October

October · September · May

77climate match

The weakest month is January, scoring 5 against September’s 81 — days reach only 1.2°C, 23° below 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

51.2° / -7.9°

Feb

53.7° / -6.4°

Mar

119.3° / -2.2°

Apr

4316.8° / 3.5°

May

6822.7° / 9.9°

Jun

6827.3° / 15.2°

Jul

6529° / 17.1°

Aug

7028.2° / 16.1°

Sep

8125.4° / 11.7°

Oct

5718.9° / 5.6°

Nov

1810.5° / -0.1°

Dec

53.3° / -5.5°

Monthly climate evidence for Peru — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1.2°C	-7.9°C	69 mm	7.9	9 h 33	5	Strong coverage
February	3.7°C	-6.4°C	50 mm	6.1	10 h 35	5	Good coverage
March	9.3°C	-2.2°C	69 mm	8.2	11 h 49	11	Strong coverage
April	16.8°C	3.5°C	87 mm	8.6	13 h 14	43	Strong coverage
May	22.7°C	9.9°C	116 mm	10.8	14 h 26	68	Good coverage
June	27.3°C	15.2°C	133 mm	10.4	15 h 05	68	Strong coverage
July	29°C	17.1°C	109 mm	8.5	14 h 49	65	Good coverage
August	28.2°C	16.1°C	103 mm	7.6	13 h 47	70	Good coverage
September	25.4°C	11.7°C	77 mm	6.4	12 h 25	81	Good coverage
October	18.9°C	5.6°C	75 mm	7.1	11 h 03	57	Good coverage
November	10.5°C	-0.1°C	74 mm	7.8	9 h 51	18	Good coverage
December	3.3°C	-5.5°C	60 mm	7.3	9 h 16	5	Good coverage

What has changed

Peru runs +1.6°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.6

Feb

+2.7

Mar

+2.2

Apr

+1.1

May

+1.3

Jun

+1.6

Jul

+1.0

Aug

+1.0

Sep

+1.5

Oct

+1.9

Nov

+0.7

Dec

+2.5

September daytime highs, 2011–2025. Last recorded: 27.8°C.

Records at WABASH, 1925–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.1°C26 Jan 1950	-31.1°C20 Jan 1985	66 mm4 Jan 1950	240 mm1950 · driest 8 mm in 1970	92
February	23.3°C12 Feb 1999	-30.0°C10 Feb 1982	69 mm10 Feb 1959	152 mm1985 · driest 8 mm in 1941	92
March	28.9°C26 Mar 2026	-25.0°C9 Mar 1984	79 mm14 Mar 1925	148 mm1977 · driest 13 mm in 1999	96
April	32.8°C11 Apr 1930	-15.6°C7 Apr 1982	74 mm7 Apr 1988	218 mm1957 · driest 5 mm in 2005	96
May	36.7°C28 May 2018	-5.0°C6 May 1968	72 mm28 May 1944	308 mm1943 · driest 7 mm in 1925	94
June	40.0°C1 Jun 1934	-1.1°C4 Jun 1969	101 mm16 Jun 2015	423 mm2015 · driest 4 mm in 1933	94
July	42.8°C14 Jul 1936	5.0°C31 Jul 1971	121 mm8 Jul 1964	295 mm2003 · driest 4 mm in 1936	95
August	39.4°C9 Aug 1934	1.1°C29 Aug 1965	95 mm22 Aug 2003	229 mm1977 · driest 4 mm in 2008	94
September	38.9°C13 Sep 1939	-3.9°C28 Sep 1942	109 mm1 Sep 1950	237 mm1972 · driest 1 mm in 2007	94
October	33.3°C1 Oct 2019	-8.9°C29 Oct 1925	81 mm7 Oct 1955	262 mm1991 · driest 3 mm in 1963	94
November	30.0°C1 Nov 1950	-19.4°C25 Nov 1950	85 mm3 Nov 1936	171 mm1985 · driest 12 mm in 2023	91
December	21.1°C7 Dec 1998	-29.4°C21 Dec 1989	77 mm22 Dec 1967	205 mm1967 · driest 5 mm in 1962	90

Typical days per month at WABASH, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	2	4
February	0	0	23	1	2
March	<1	0	19	2	1
April	3	<1	8	3	<1
May	11	3	<1	4	0
June	21	9	0	4	0
July	26	12	0	3	0
August	24	9	0	3	0
September	15	5	<1	2	0
October	6	<1	5	3	0
November	<1	0	16	3	<1
December	0	0	23	2	2

How often, not how much — every day in WABASH’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	0%	24%	6%	24%	-2.8–4.6°C
February	<1%	22%	5%	22%	-0.7–6.8°C
March	6%	27%	8%	31%	5.3–12.9°C
April	21%	31%	11%	40%	13.7–19.5°C
May	48%	33%	11%	45%	19.5–25.4°C
June	67%	31%	12%	35%	25.2–29.8°C
July	74%	26%	11%	28%	27.5–31.7°C
August	75%	24%	10%	22%	26.9–30.3°C
September	67%	23%	8%	23%	23.2–27.6°C
October	35%	23%	8%	24%	16.2–21.8°C
November	7%	26%	9%	27%	6.8–13.2°C
December	<1%	25%	7%	27%	-0.2–6.0°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.

1926Each stripe is one year’s mean temperature against the 72-year average. Warmest: 2024. Coolest: 1963.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4924733
NOAA station: USC00129138 · WABASH
Station distance: 20.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 40.75°, 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 WABASH is what differs

Wabash→Mount Vernon→Denver→Lagro→Somerset→Amboy→

Or put two places side by side: Peru vs Wabash

Best time to visitPeru.