Russia · 1991–2020

Best time to visit
Biyka.

August leads for comfortable weather in Biyka: typically 22.9°C by day, 11.4°C at night, with 120 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high22.9°C

Typical low11.4°C

Rain in August120 mm

Comfort

August

August · July · June

69climate match

Beach

July

July · August · June

32climate match

Outdoors

June

June · August · September

63climate match

The weakest month is January, scoring 5 against August’s 69 — days reach only -4.2°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

5-4.2° / -11.8°

Feb

5-1.8° / -11.4°

Mar

54.7° / -6.6°

Apr

1912.1° / -0.4°

May

4118.1° / 4.4°

Jun

6523° / 9.2°

Jul

6724.8° / 12.6°

Aug

6922.9° / 11.4°

Sep

4216.4° / 5.8°

Oct

159.6° / 0.7°

Nov

51.7° / -5.7°

Dec

5-2.6° / -9.6°

Monthly climate evidence for Biyka — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.2°C	-11.8°C	15 mm	5	8 h 14	5	Strong coverage
February	-1.8°C	-11.4°C	16 mm	4.4	9 h 50	5	Strong coverage
March	4.7°C	-6.6°C	30 mm	6.3	11 h 41	5	Strong coverage
April	12.1°C	-0.4°C	82 mm	11.2	13 h 48	19	Strong coverage
May	18.1°C	4.4°C	113 mm	13.2	15 h 38	41	Strong coverage
June	23°C	9.2°C	117 mm	13.8	16 h 41	65	Strong coverage
July	24.8°C	12.6°C	147 mm	14.9	16 h 16	67	Strong coverage
August	22.9°C	11.4°C	120 mm	13.3	14 h 39	69	Strong coverage
September	16.4°C	5.8°C	93 mm	12.1	12 h 35	42	Strong coverage
October	9.6°C	0.7°C	70 mm	10	10 h 32	15	Strong coverage
November	1.7°C	-5.7°C	49 mm	9.7	8 h 43	5	Strong coverage
December	-2.6°C	-9.6°C	27 mm	7.2	7 h 47	5	Strong coverage

What has changed

Biyka runs +0.9°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

+0.3

Feb

+1.1

Mar

+2.3

Apr

+2.2

May

+0.6

Jun

+1.7

Jul

+0.6

Aug

+1.3

Sep

+0.6

Oct

+0.9

Nov

-0.4

Dec

-0.1

August daytime highs, 2011–2025. Last recorded: 20.1°C.

Records at YAJLJU, 1931–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	11.6°C27 Jan 1983	-36.2°C26 Jan 1969	21 mm5 Jan 1933	51 mm1966 · driest 1 mm in 1964	93
February	13.4°C17 Feb 2004	-38.7°C25 Feb 1951	17 mm27 Feb 1966	57 mm1966 · driest 1 mm in 1932	93
March	21.4°C31 Mar 1989	-28.6°C13 Mar 1995	21 mm30 Mar 1983	84 mm2002 · driest 1 mm in 1952	93
April	29.3°C28 Apr 1972	-24.3°C3 Apr 1964	43 mm14 Apr 2004	173 mm2006 · driest 9 mm in 2020	93
May	33.0°C19 May 2004	-10.1°C1 May 1932	56 mm21 May 2008	240 mm2007 · driest 32 mm in 2022	93
June	34.7°C18 Jun 2017	-1.3°C1 Jun 1961	107 mm30 Jun 2019	237 mm1932 · driest 30 mm in 2018	94
July	36.9°C15 Jul 1992	1.6°C5 Jul 1972	101 mm19 Jul 2008	321 mm1984 · driest 60 mm in 1969	95
August	34.7°C10 Aug 1998	0.1°C30 Aug 1967	69 mm7 Aug 1984	262 mm1997 · driest 56 mm in 1974	95
September	29.4°C12 Sep 2015	-4.9°C27 Sep 1969	63 mm1 Sep 1956	245 mm1974 · driest 21 mm in 1953	94
October	23.2°C1 Oct 1996	-18.7°C28 Oct 1987	73 mm10 Oct 1999	211 mm2009 · driest 19 mm in 1947	93
November	16.1°C19 Nov 2023	-33.0°C25 Nov 1987	45 mm18 Nov 1950	135 mm1947 · driest 9 mm in 1981	93
December	14.1°C2 Dec 1989	-33.5°C17 Dec 1938	22 mm9 Dec 1961	81 mm1964 · driest 4 mm in 1975	93

Typical days per month at YAJLJU, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	30	0
February	0	0	28	0
March	0	0	28	<1
April	<1	0	15	3
May	5	<1	4	4
June	12	2	<1	4
July	15	3	0	5
August	11	1	0	5
September	1	0	1	3
October	0	0	12	2
November	0	0	25	1
December	0	0	30	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 79); on 2011–2025 it is June (80). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in YAJLJU’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%	16%	<1%	13%	-8.2–-1.9°C
February	0%	15%	<1%	12%	-6.8–0.5°C
March	0%	20%	1%	22%	0.4–6.7°C
April	6%	35%	7%	48%	7.0–13.9°C
May	28%	45%	13%	64%	15.0–20.1°C
June	46%	48%	14%	70%	19.5–24.6°C
July	49%	48%	15%	70%	22.3–26.2°C
August	46%	46%	16%	67%	20.0–23.8°C
September	20%	40%	11%	53%	13.6–18.1°C
October	<1%	33%	7%	44%	7.0–11.0°C
November	0%	31%	3%	36%	-1.7–4.4°C
December	0%	24%	1%	24%	-7.0–-0.3°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.

1932Each stripe is one year’s mean temperature against the 82-year average. Warmest: 2007. Coolest: 1969.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 1510019
NOAA station: RSM00036064 · YAJLJU
Station distance: 14.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 51.93°, 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 YAJLJU is what differs

Iogach→Artybash→Balykcha→Ko→Yaylyu→Jajlju→

Or put two places side by side: Biyka vs Iogach

Best time to visitBiyka.

August

July

June

The whole year,without the guesswork.

Biyka runs +0.9°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Biyka.

The whole year,
without the guesswork.

Biyka runs +0.9°C
on the 1961–1990 baseline.

Nearby, measured,
and named.