Finland · 1991–2020

Best time to visit
Mänttä.

July leads for comfortable weather in Mänttä: typically 22.2°C by day, 11.9°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly
Typical high22.2°C
Typical low11.9°C
Rain in July86 mm
Comfort

July

July · August · June

75climate match
Beach

July

July · August · June

38climate match
Outdoors

August

August · June · July

84climate match

The weakest month is January, scoring 5 against July’s 75days reach only -3.7°C, 28° 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
5-3.7° / -9.7°
Feb
5-3.6° / -10.4°
Mar
51.2° / -7.1°
Apr
137.9° / -1.7°
May
4615.3° / 3.6°
Jun
6419.7° / 8.8°
Jul
7522.2° / 11.9°
Aug
6820.2° / 10.5°
Sep
4414.1° / 6.2°
Oct
76.9° / 1.5°
Nov
51.7° / -2.5°
Dec
5-1.6° / -6.6°
Monthly climate evidence for Mänttä — daylight is calculated from latitude, everything else is measured
MonthDayNightRainWet daysDaylightComfortCoverage
January-3.7°C-9.7°C48 mm11.66 h 045Good coverage
February-3.6°C-10.4°C32 mm8.78 h 445Good coverage
March1.2°C-7.1°C34 mm8.211 h 305Good coverage
April7.9°C-1.7°C30 mm6.914 h 3913Good coverage
May15.3°C3.6°C38 mm7.217 h 3746Good coverage
June19.7°C8.8°C68 mm9.819 h 4164Good coverage
July22.2°C11.9°C86 mm10.318 h 4875Good coverage
August20.2°C10.5°C73 mm9.715 h 5868Good coverage
September14.1°C6.2°C54 mm8.612 h 4944Good coverage
October6.9°C1.5°C68 mm11.29 h 487Good coverage
November1.7°C-2.5°C53 mm10.76 h 545Good coverage
December-1.6°C-6.6°C48 mm115 h 125Good coverage

What has changed

Mänttä runs +1.9°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
+2.5
Feb
+2.8
Mar
+2.1
Apr
+2.0
May
+1.4
Jun
+0.8
Jul
+1.3
Aug
+1.7
Sep
+2.5
Oct
+1.1
Nov
+2.0
Dec
+2.7
July daytime highs, 20112025. Last recorded: 25.7°C.
Records at JAMSA HALLI LENTOKENTTA, 1964–2026
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January8.8°C28 Jan 1992-39.0°C8 Jan 198721 mm25 Jan 200288 mm2002 · driest 8 mm in 197262
February8.4°C23 Feb 1990-40.5°C3 Feb 196618 mm4 Feb 199971 mm1990 · driest 1 mm in 199462
March16.5°C27 Mar 2007-29.2°C7 Mar 198117 mm3 Mar 200067 mm1994 · driest 3 mm in 196961
April23.7°C30 Apr 1998-16.8°C4 Apr 202322 mm29 Apr 198964 mm1988 · driest 4 mm in 197463
May29.2°C19 May 2014-8.2°C1 May 200731 mm13 May 200293 mm2003 · driest 7 mm in 199263
June33.4°C22 Jun 2021-1.7°C18 Jun 197840 mm13 Jun 1981147 mm1981 · driest 20 mm in 197063
July33.1°C29 Jul 20101.5°C6 Jul 200945 mm6 Jul 1996154 mm2004 · driest 16 mm in 198262
August31.6°C1 Aug 2018-1.7°C27 Aug 198457 mm12 Aug 1972199 mm1972 · driest 25 mm in 199662
September26.4°C5 Sep 2024-7.1°C28 Sep 198646 mm10 Sep 2001142 mm2001 · driest 13 mm in 200062
October18.2°C14 Oct 2018-17.6°C22 Oct 200231 mm7 Oct 2003127 mm2008 · driest 10 mm in 200262
November12.5°C3 Nov 2015-25.8°C30 Nov 198035 mm5 Nov 2000123 mm2000 · driest 4 mm in 199362
December9.8°C20 Dec 2015-35.3°C17 Dec 197822 mm6 Dec 199993 mm1999 · driest 9 mm in 197861
Typical days per month at JAMSA HALLI LENTOKENTTA, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)
January0029<1
February0027<1
March0028<1
April0020<1
May107<1
June4<1<12
July8103
August4<102
September0031
October00112
November00201
December0026<1
How often, not how much — every day in JAMSA HALLI LENTOKENTTA’s record sorted by what it was actually like, rather than averaged
MonthWarm & dry daysWet daysWashoutsWeek with 3+ wet daysDaytime mean has ranged
January0%33%1%44%-9.8–-0.9°C
February0%26%<1%32%-8.7–0.3°C
March0%26%1%31%-2.0–3.7°C
April<1%24%1%28%4.4–9.8°C
May15%24%3%28%12.5–17.9°C
June38%29%6%37%17.3–22.3°C
July46%34%8%44%19.2–25.0°C
August32%34%8%47%17.4–21.7°C
September4%33%6%42%10.9–15.7°C
October0%35%5%50%4.9–9.0°C
November0%37%3%52%-1.7–4.0°C
December0%34%2%45%-7.6–1.7°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.

1966Each stripe is one year’s mean temperature against the 59-year average. Warmest: 2020. Coolest: 1985.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 646705
NOAA station
FIE00143586 · JAMSA HALLI LENTOKENTTA
Station distance
21.1 km from the place centre
Climate period
1991–2020
Minimum month coverage
18 usable years
Daylight
Calculated from latitude 62.03°, 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 JAMSA HALLI LENTOKENTTA is what differs

VuohijokiVästiläVessarinkulmaUuhiniemiTalviainenRistijärvi