Finland · 1991–2020

Best time to visit
Seppälä.

July leads for comfortable weather in Seppälä: typically 20.3°C by day, 9.9°C at night, with 75 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high20.3°C

Typical low9.9°C

Rain in July75 mm

Comfort

July

July · August · June

66climate match

Beach

July

July · August · June

27climate match

Outdoors

July

July · August · June

82climate match

The weakest month is January, scoring 5 against July’s 66 — days reach only -8.2°C, 32° 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

5-8.2° / -16.8°

Feb

5-7.1° / -16°

Mar

5-2° / -13°

Apr

54.4° / -5.1°

May

2811.2° / 1.2°

Jun

5016.7° / 6.3°

Jul

6620.3° / 9.9°

Aug

5417.1° / 7.3°

Sep

2911.4° / 3.4°

Oct

53.3° / -1.8°

Nov

5-2° / -7.8°

Dec

5-5.4° / -12.7°

Monthly climate evidence for Seppälä — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-8.2°C	-16.8°C	36 mm	10.1	3 h 56	5	Good coverage
February	-7.1°C	-16°C	32 mm	9.5	7 h 51	5	Good coverage
March	-2°C	-13°C	29 mm	7.3	11 h 22	5	Good coverage
April	4.4°C	-5.1°C	29 mm	6.8	15 h 19	5	Good coverage
May	11.2°C	1.2°C	38 mm	8.5	19 h 29	28	Good coverage
June	16.7°C	6.3°C	58 mm	10.4	24 h	50	Good coverage
July	20.3°C	9.9°C	75 mm	11.1	21 h 53	66	Good coverage
August	17.1°C	7.3°C	58 mm	10.1	17 h 03	54	Good coverage
September	11.4°C	3.4°C	52 mm	9.5	13 h 00	29	Good coverage
October	3.3°C	-1.8°C	47 mm	9.3	9 h 14	5	Good coverage
November	-2°C	-7.8°C	39 mm	10	5 h 18	5	Good coverage
December	-5.4°C	-12.7°C	37 mm	10.6	2 h	5	Good coverage

Records at SALLA KK MYLLYTIE, 1999–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	5.5°C11 Jan 2002	-38.5°C9 Jan 2026	11 mm5 Jan 2007	62 mm2003 · driest 10 mm in 2010	27
February	5.5°C20 Feb 2004	-38.2°C18 Feb 2011	19 mm28 Feb 2010	102 mm2019 · driest 11 mm in 2018	27
March	9.7°C28 Mar 2007	-35.1°C16 Mar 2013	13 mm9 Mar 2019	70 mm2019 · driest 8 mm in 2013	27
April	17.5°C29 Apr 2002	-30.8°C4 Apr 2024	23 mm25 Apr 2000	60 mm2000 · driest 6 mm in 2026	27
May	28.0°C31 May 2013	-12.8°C1 May 2014	26 mm26 May 2003	79 mm2015 · driest 7 mm in 2017	27
June	30.3°C29 Jun 2000	-3.8°C9 Jun 2008	39 mm19 Jun 2002	116 mm2026 · driest 19 mm in 2006	27
July	31.5°C17 Jul 2018	-1.5°C30 Jul 2006	54 mm16 Jul 2013	129 mm2007 · driest 29 mm in 2006	27
August	31.0°C1 Aug 2018	-4.3°C20 Aug 2012	44 mm3 Aug 2021	116 mm2018 · driest 15 mm in 2013	27
September	22.9°C2 Sep 2019	-9.4°C23 Sep 2014	45 mm19 Sep 2023	108 mm2023 · driest 20 mm in 2011	27
October	14.5°C4 Oct 2021	-21.3°C24 Oct 2021	35 mm25 Oct 2019	99 mm2021 · driest 9 mm in 2016	27
November	8.2°C2 Nov 2005	-35.8°C29 Nov 2002	19 mm12 Nov 2025	64 mm2020 · driest 12 mm in 2023	27
December	5.0°C2 Dec 2024	-40.2°C31 Dec 2002	15 mm14 Dec 1999	63 mm2025 · driest 8 mm in 2001	27

Typical days per month at SALLA KK MYLLYTIE, 1991–2020
Month	Days 25°C+	Frost nights	Heavy rain (10 mm+)
January	0	31	<1
February	0	28	<1
March	0	31	<1
April	0	24	<1
May	<1	13	<1
June	2	2	1
July	5	<1	2
August	1	2	1
September	0	8	1
October	0	19	1
November	0	26	<1
December	0	30	<1

How often, not how much — every day in SALLA KK MYLLYTIE’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%	32%	<1%	43%	-12.1–-4.5°C
February	0%	31%	<1%	37%	-10.9–-3.3°C
March	0%	23%	1%	25%	-4.9–1.0°C
April	0%	23%	1%	23%	2.7–6.2°C
May	8%	27%	3%	36%	8.9–14.1°C
June	20%	35%	5%	47%	14.9–19.7°C
July	39%	36%	7%	46%	18.1–23.0°C
August	20%	34%	5%	44%	15.4–19.8°C
September	3%	32%	5%	41%	9.8–13.8°C
October	0%	32%	3%	40%	0.5–5.8°C
November	0%	32%	1%	43%	-4.9–1.1°C
December	0%	34%	<1%	43%	-10.8–-1.4°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.

2000Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2020. Coolest: 2002.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 637104
NOAA station: FIE00146378 · SALLA KK MYLLYTIE
Station distance: 11.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 66.82°, 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 SALLA KK MYLLYTIE is what differs

Salla→Tikkala→Selkälä→Salmivaara→Pirttilä→Onkamo→

Or put two places side by side: Seppälä vs Salla

Best time to visitSeppälä.

July

July

July

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Seppälä.

The whole year,
without the guesswork.

Nearby, measured,
and named.