Estonia · 1991–2020

Best time to visit
Iisaku.

July leads for comfortable weather in Iisaku: typically 22.4°C by day, 12°C at night, with 76 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high22.4°C

Typical low12°C

Rain in July76 mm

Comfort

July

July · August · June

77climate match

Beach

July

July · August · June

41climate match

Outdoors

June

June · August · July

79climate match

The weakest month is January, scoring 5 against July’s 77 — days reach only -2.3°C, 26° 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

5-2.3° / -7.5°

Feb

5-2.4° / -8.5°

Mar

51.9° / -5.5°

Apr

209.5° / -0.1°

May

4715.8° / 4.3°

Jun

6019.6° / 9.1°

Jul

7722.4° / 12°

Aug

6721° / 10.9°

Sep

4615.7° / 7°

Oct

108.5° / 2.4°

Nov

52.7° / -1.7°

Dec

5-0.5° / -5°

Monthly climate evidence for Iisaku — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-2.3°C	-7.5°C	45 mm	12.8	6 h 53	5	Strong coverage
February	-2.4°C	-8.5°C	33 mm	9.4	9 h 07	5	Strong coverage
March	1.9°C	-5.5°C	36 mm	8.9	11 h 34	5	Strong coverage
April	9.5°C	-0.1°C	35 mm	8.3	14 h 21	20	Strong coverage
May	15.8°C	4.3°C	50 mm	7.8	16 h 53	47	Strong coverage
June	19.6°C	9.1°C	85 mm	11.3	18 h 29	60	Strong coverage
July	22.4°C	12°C	76 mm	9.7	17 h 49	77	Strong coverage
August	21°C	10.9°C	93 mm	11.6	15 h 30	67	Strong coverage
September	15.7°C	7°C	70 mm	11	12 h 44	46	Strong coverage
October	8.5°C	2.4°C	82 mm	14.2	10 h 04	10	Strong coverage
November	2.7°C	-1.7°C	64 mm	13.4	7 h 34	5	Strong coverage
December	-0.5°C	-5°C	49 mm	13	6 h 11	5	Strong coverage

What has changed

Iisaku runs +1.7°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

+2.1

Feb

+2.3

Mar

+2.4

Apr

+1.6

May

+1.1

Jun

+1.2

Jul

+1.8

Aug

+1.7

Sep

+2.1

Oct

+0.7

Nov

+1.7

Dec

+2.1

July daytime highs, 2011–2025. Last recorded: 24.7°C.

Records at JOHVI, 1959–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	8.9°C10 Jan 2007	-34.5°C11 Jan 2003	18 mm2 Jan 2021	90 mm2007 · driest 6 mm in 2026	68
February	10.6°C23 Feb 1990	-36.0°C15 Feb 1979	17 mm21 Feb 1990	89 mm1990 · driest 5 mm in 2026	68
March	17.2°C31 Mar 2024	-28.4°C21 Mar 1963	22 mm15 Mar 2000	70 mm2000 · driest 3 mm in 1964	68
April	26.6°C19 Apr 2025	-18.0°C3 Apr 1965	35 mm24 Apr 1975	94 mm1975 · driest 2 mm in 1965	68
May	32.1°C19 May 2014	-6.5°C10 May 1972	43 mm30 May 2007	140 mm2021 · driest 1 mm in 2018	68
June	33.1°C23 Jun 2021	-2.5°C3 Jun 2003	76 mm25 Jun 2000	168 mm2000 · driest 11 mm in 1969	67
July	33.7°C28 Jul 2010	2.2°C6 Jul 2009	61 mm3 Jul 2019	181 mm1998 · driest 6 mm in 2010	67
August	34.6°C8 Aug 2010	-0.6°C28 Aug 1980	116 mm25 Aug 2008	265 mm2003 · driest 10 mm in 2002	67
September	28.1°C1 Sep 1992	-4.2°C30 Sep 1976	64 mm12 Sep 1962	158 mm1970 · driest 17 mm in 1993	66
October	19.7°C2 Oct 1981	-15.7°C22 Oct 2002	32 mm13 Oct 2000	157 mm2009 · driest 10 mm in 1987	67
November	13.6°C12 Nov 2022	-25.9°C29 Nov 2010	36 mm3 Nov 2013	124 mm2001 · driest 10 mm in 1993	67
December	10.9°C6 Dec 2006	-41.0°C30 Dec 1978	19 mm21 Dec 2003	84 mm1975 · driest 18 mm in 1968	67

Typical days per month at JOHVI, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	27	<1
February	0	0	26	<1
March	0	0	26	<1
April	0	0	16	<1
May	1	<1	5	1
June	4	<1	<1	2
July	8	1	0	2
August	5	<1	0	3
September	<1	0	1	2
October	0	0	9	2
November	0	0	18	1
December	0	0	25	<1

How often, not how much — every day in JOHVI’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%	35%	<1%	46%	-8.2–0.3°C
February	0%	30%	<1%	38%	-7.3–1.4°C
March	0%	27%	<1%	33%	-1.6–5.1°C
April	3%	27%	2%	31%	6.4–11.4°C
May	16%	25%	4%	31%	12.9–18.0°C
June	33%	33%	7%	46%	17.4–22.1°C
July	47%	33%	7%	44%	19.4–24.6°C
August	37%	38%	8%	51%	18.2–23.0°C
September	8%	39%	7%	52%	12.6–17.3°C
October	0%	43%	7%	61%	6.4–10.8°C
November	0%	46%	3%	66%	0.3–5.1°C
December	0%	41%	1%	57%	-4.7–2.3°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.

1959Each stripe is one year’s mean temperature against the 65-year average. Warmest: 2024. Coolest: 1987.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 592062
NOAA station: ENE00174999 · JOHVI
Station distance: 25.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 59.10°, 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 JOHVI is what differs

Kohtla-Järve→Jõhvi→Toila→Kiviõli→Kohtla-Nõmme→Püssi→

Or put two places side by side: Iisaku vs Kohtla-Järve

Best time to visitIisaku.

July

July

June

The whole year,without the guesswork.

Iisaku runs +1.7°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Iisaku.

The whole year,
without the guesswork.

Iisaku runs +1.7°C
on the 1961–1990 baseline.

Nearby, measured,
and named.