June
June · July · August
Russia · 1991–2020
June leads for comfortable weather in Osa: typically 23.5°C by day, 10°C at night, with 51 mm of rain. Based on measured 1991–2020 NOAA station history.
June · July · August
July · June · August
June · August · May
The weakest month is January, scoring 5 against June’s 83 — days reach only -18.7°C, 43° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -18.7°C | -27.4°C | 9 mm | 2.9 | 8 h 01 | 5 | Strong coverage |
| February | -14.3°C | -24.7°C | 6 mm | 2.2 | 9 h 43 | 5 | Strong coverage |
| March | -3.8°C | -16°C | 6 mm | 2.1 | 11 h 40 | 5 | Strong coverage |
| April | 8°C | -4.2°C | 12 mm | 3.5 | 13 h 54 | 12 | Strong coverage |
| May | 16.6°C | 2.2°C | 26 mm | 5.9 | 15 h 50 | 50 | Strong coverage |
| June | 23.5°C | 10°C | 51 mm | 7.1 | 16 h 58 | 83 | Strong coverage |
| July | 25.6°C | 13.5°C | 67 mm | 8.6 | 16 h 31 | 83 | Strong coverage |
| August | 22.8°C | 11.1°C | 67 mm | 8.2 | 14 h 47 | 80 | Strong coverage |
| September | 14.8°C | 4.1°C | 48 mm | 8 | 12 h 36 | 44 | Strong coverage |
| October | 5.9°C | -3.3°C | 16 mm | 4.7 | 10 h 27 | 6 | Strong coverage |
| November | -5.6°C | -13.9°C | 12 mm | 4.1 | 8 h 31 | 5 | Strong coverage |
| December | -15.5°C | -24.1°C | 14 mm | 5.1 | 7 h 31 | 5 | Strong coverage |
What has changed
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.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 0.1°C27 Jan 1983 | -51.2°C27 Jan 1940 | 6 mm11 Jan 2015 | 23 mm2021 · driest 2 mm in 1943 | 89 |
| February | 4.9°C27 Feb 1987 | -48.6°C15 Feb 1952 | 6 mm4 Feb 1936 | 19 mm1936 · driest 1 mm in 2020 | 89 |
| March | 13.6°C28 Mar 1990 | -44.6°C6 Mar 1946 | 7 mm16 Mar 2014 | 21 mm1941 · driest 0 mm in 1980 | 89 |
| April | 28.3°C30 Apr 2020 | -33.1°C4 Apr 1984 | 18 mm28 Apr 1943 | 34 mm1941 · driest 1 mm in 1954 | 89 |
| May | 33.5°C31 May 1950 | -10.6°C7 May 1939 | 26 mm25 May 2018 | 59 mm1957 · driest 0 mm in 1946 | 89 |
| June | 35.9°C26 Jun 1997 | -3.4°C1 Jun 1961 | 60 mm30 Jun 1952 | 161 mm1952 · driest 7 mm in 2012 | 89 |
| July | 35.8°C4 Jul 1954 | 1.2°C9 Jul 1957 | 113 mm25 Jul 1946 | 238 mm1944 · driest 17 mm in 1993 | 89 |
| August | 36.8°C14 Aug 1939 | -4.3°C30 Aug 1938 | 66 mm9 Aug 1975 | 185 mm2006 · driest 17 mm in 1989 | 89 |
| September | 28.9°C5 Sep 1953 | -9.2°C30 Sep 1954 | 53 mm3 Sep 1985 | 121 mm1983 · driest 2 mm in 1984 | 88 |
| October | 24.2°C1 Oct 1986 | -24.9°C30 Oct 1974 | 25 mm9 Oct 1966 | 48 mm1966 · driest 1 mm in 1949 | 88 |
| November | 10.0°C1 Nov 2006 | -39.3°C24 Nov 1944 | 10 mm5 Nov 2002 | 27 mm1969 · driest 1 mm in 1948 | 88 |
| December | 4.6°C30 Dec 1939 | -50.6°C28 Dec 1949 | 11 mm8 Dec 1976 | 36 mm2017 · driest 2 mm in 1995 | 88 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 31 | 0 |
| February | 0 | 0 | 28 | 0 |
| March | 0 | 0 | 30 | 0 |
| April | <1 | 0 | 25 | <1 |
| May | 2 | <1 | 9 | <1 |
| June | 12 | 3 | <1 | 2 |
| July | 18 | 4 | 0 | 2 |
| August | 10 | 1 | 0 | 2 |
| September | <1 | 0 | 4 | 1 |
| October | 0 | 0 | 22 | <1 |
| November | 0 | 0 | 29 | 0 |
| December | 0 | 0 | 30 | 0 |
The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 89); on 2011–2025 it is June (88). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 10% | 0% | 5% | -24.3–-15.5°C |
| February | 0% | 8% | 0% | 3% | -21.0–-11.4°C |
| March | 0% | 6% | 0% | 1% | -8.5–-1.4°C |
| April | 2% | 11% | <1% | 6% | 3.5–10.0°C |
| May | 25% | 18% | 1% | 15% | 14.2–18.7°C |
| June | 60% | 26% | 5% | 30% | 21.0–25.3°C |
| July | 68% | 28% | 7% | 30% | 23.0–27.1°C |
| August | 56% | 27% | 6% | 30% | 20.2–24.4°C |
| September | 15% | 23% | 4% | 20% | 13.0–16.9°C |
| October | <1% | 13% | <1% | 7% | 3.5–8.0°C |
| November | 0% | 14% | 0% | 10% | -10.0–-2.1°C |
| December | 0% | 15% | <1% | 13% | -21.1–-12.0°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.
The evidence behind this page