Finland · 1991–2020

Best time to visit
Viitaila.

July leads for comfortable weather in Viitaila: typically 22°C by day, 10.9°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high22°C

Typical low10.9°C

Rain in July84 mm

Comfort

July

July · August · June

72climate match

Beach

July

July · August · June

34climate match

Outdoors

August

August · June · July

84climate match

The weakest month is January, scoring 5 against July’s 72 — days reach only -2.6°C, 27° 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

5-2.6° / -8.5°

Feb

5-3.5° / -10.8°

Mar

51.4° / -7.1°

Apr

158.3° / -1.6°

May

4315.1° / 2.6°

Jun

6119.3° / 8.1°

Jul

7222° / 10.9°

Aug

6620.2° / 9.6°

Sep

4314.2° / 5.2°

Oct

87.2° / 1.5°

Nov

51.2° / -3°

Dec

5-1.4° / -6.5°

Monthly climate evidence for Viitaila — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-2.6°C	-8.5°C	49 mm	11.8	6 h 20	5	Good coverage
February	-3.5°C	-10.8°C	35 mm	8.8	8 h 51	5	Good coverage
March	1.4°C	-7.1°C	35 mm	8.9	11 h 31	5	Good coverage
April	8.3°C	-1.6°C	27 mm	6.4	14 h 33	15	Good coverage
May	15.1°C	2.6°C	43 mm	8.3	17 h 23	43	Good coverage
June	19.3°C	8.1°C	66 mm	10.7	19 h 16	61	Good coverage
July	22°C	10.9°C	84 mm	10.7	18 h 28	72	Good coverage
August	20.2°C	9.6°C	72 mm	10	15 h 49	66	Good coverage
September	14.2°C	5.2°C	50 mm	8.6	12 h 48	43	Good coverage
October	7.2°C	1.5°C	70 mm	11.2	9 h 53	8	Good coverage
November	1.2°C	-3°C	52 mm	10.3	7 h 07	5	Good coverage
December	-1.4°C	-6.5°C	46 mm	11.2	5 h 32	5	Good coverage

Records at HAMEENLINNA LAMMI ISO-EVO, 1989–2009
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	7.3°C10 Jan 2007	-34.5°C1 Jan 2003	27 mm23 Jan 1995	91 mm2005 · driest 11 mm in 1996	21
February	9.0°C23 Feb 1990	-34.6°C7 Feb 2007	20 mm25 Feb 1990	84 mm1990 · driest 2 mm in 1994	20
March	15.8°C28 Mar 2007	-27.2°C1 Mar 1994	14 mm3 Mar 2000	68 mm1992 · driest 6 mm in 2005	20
April	23.5°C29 Apr 1998	-17.2°C3 Apr 1998	14 mm2 Apr 1994	61 mm1992 · driest 3 mm in 2002	20
May	29.0°C31 May 1995	-7.1°C2 May 1995	27 mm13 May 2002	83 mm1995 · driest 13 mm in 1992	20
June	29.9°C3 Jun 1995	-2.6°C5 Jun 1997	31 mm30 Jun 2004	120 mm2001 · driest 27 mm in 1999	20
July	31.8°C28 Jul 1994	1.3°C7 Jul 1993	65 mm17 Jul 1989	213 mm2004 · driest 3 mm in 1994	20
August	29.7°C11 Aug 1992	-0.6°C31 Aug 1989	38 mm29 Aug 1995	157 mm1998 · driest 8 mm in 2002	20
September	24.6°C2 Sep 1991	-7.2°C30 Sep 1993	28 mm7 Sep 1995	101 mm2001 · driest 13 mm in 2003	20
October	18.0°C1 Oct 2000	-18.0°C22 Oct 2002	30 mm22 Oct 2005	164 mm2006 · driest 24 mm in 2002	20
November	10.2°C2 Nov 1999	-25.1°C22 Nov 1990	34 mm5 Nov 2000	110 mm1996 · driest 4 mm in 1993	20
December	9.2°C6 Dec 2006	-32.9°C25 Dec 1995	18 mm21 Dec 2003	100 mm1999 · driest 12 mm in 2002	20

Typical days per month at HAMEENLINNA LAMMI ISO-EVO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	29	<1
February	0	0	26	<1
March	0	0	28	<1
April	0	0	20	<1
May	<1	0	9	1
June	3	0	<1	2
July	7	<1	0	3
August	4	0	<1	2
September	0	0	5	1
October	0	0	11	2
November	0	0	21	1
December	0	0	26	<1

How often, not how much — every day in HAMEENLINNA LAMMI ISO-EVO’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%	39%	1%	55%	-5.4–-0.1°C
February	0%	32%	2%	44%	-7.5–1.0°C
March	0%	29%	<1%	38%	-0.8–3.5°C
April	2%	22%	1%	24%	6.3–10.9°C
May	16%	26%	3%	30%	12.8–17.2°C
June	34%	35%	6%	43%	17.0–22.1°C
July	52%	34%	9%	47%	19.9–24.3°C
August	40%	33%	7%	44%	17.6–22.9°C
September	7%	28%	4%	37%	11.9–16.3°C
October	0%	36%	6%	45%	4.2–9.5°C
November	0%	34%	4%	47%	-2.4–4.1°C
December	0%	36%	2%	47%	-6.5–1.8°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.

1989Each stripe is one year’s mean temperature against the 20-year average. Warmest: 2008. Coolest: 1996.2008

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 631623
NOAA station: FIE00143011 · HAMEENLINNA LAMMI ISO-EVO
Station distance: 17 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 61.15°, 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 HAMEENLINNA LAMMI ISO-EVO is what differs

Tuulos→Auttoinen→Ylänne→Vihavuosi→Vesijako→Vehkasaha→

Or put two places side by side: Viitaila vs Tuulos

Best time to visitViitaila.

July

July

August

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Viitaila.

The whole year,
without the guesswork.

Nearby, measured,
and named.