September
September · May · June
Bulgaria · 1991–2020
September leads for comfortable weather in Borovo: typically 25.3°C by day, 12.3°C at night, with 43 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
April · October · September
The weakest month is January, scoring 5 against September’s 89 — days reach only 2.1°C, 22° 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 | 2.1°C | -5°C | 32 mm | 5.7 | 9 h 17 | 5 | Strong coverage |
| February | 5.6°C | -3.1°C | 26 mm | 4.9 | 10 h 25 | 5 | Strong coverage |
| March | 12.1°C | 1.3°C | 35 mm | 5.8 | 11 h 47 | 34 | Strong coverage |
| April | 18.4°C | 6.2°C | 40 mm | 6.3 | 13 h 21 | 62 | Strong coverage |
| May | 24°C | 11.2°C | 60 mm | 8.3 | 14 h 40 | 85 | Strong coverage |
| June | 28.3°C | 15.1°C | 67 mm | 7.6 | 15 h 24 | 77 | Strong coverage |
| July | 30.8°C | 16.9°C | 64 mm | 6.5 | 15 h 07 | 67 | Strong coverage |
| August | 30.9°C | 17°C | 42 mm | 4.4 | 13 h 58 | 72 | Strong coverage |
| September | 25.3°C | 12.3°C | 43 mm | 4.4 | 12 h 27 | 89 | Strong coverage |
| October | 18.1°C | 7.1°C | 47 mm | 5.4 | 10 h 56 | 62 | Strong coverage |
| November | 10.2°C | 2.3°C | 33 mm | 5.5 | 9 h 37 | 29 | Strong coverage |
| December | 3.7°C | -3°C | 37 mm | 6.1 | 8 h 58 | 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 | 20.2°C18 Jan 2023 | -29.2°C25 Jan 1963 | 33 mm17 Jan 2016 | 92 mm1979 · driest 0 mm in 1989 | 66 |
| February | 22.2°C28 Feb 1994 | -26.5°C9 Feb 2005 | 36 mm6 Feb 2020 | 80 mm1986 · driest 1 mm in 1994 | 66 |
| March | 27.1°C30 Mar 2024 | -20.5°C1 Mar 2018 | 39 mm30 Mar 1997 | 118 mm1984 · driest 2 mm in 2012 | 66 |
| April | 32.8°C10 Apr 1985 | -4.0°C8 Apr 2003 | 43 mm15 Apr 1970 | 141 mm2014 · driest 1 mm in 2007 | 66 |
| May | 35.0°C25 May 1990 | 0.6°C9 May 1987 | 54 mm21 May 1967 | 132 mm1991 · driest 6 mm in 2000 | 65 |
| June | 39.3°C26 Jun 2007 | 4.7°C3 Jun 2020 | 65 mm4 Jun 1969 | 178 mm1983 · driest 5 mm in 1987 | 64 |
| July | 42.7°C24 Jul 2007 | 8.2°C15 Jul 1993 | 83 mm11 Jul 1994 | 223 mm1994 · driest 1 mm in 1965 | 65 |
| August | 40.4°C25 Aug 2012 | 4.3°C29 Aug 1981 | 71 mm6 Aug 2005 | 232 mm2005 · driest 1 mm in 2024 | 65 |
| September | 37.6°C15 Sep 1987 | -1.4°C30 Sep 1977 | 36 mm20 Sep 1998 | 164 mm2005 · driest 0 mm in 2011 | 65 |
| October | 34.2°C6 Oct 1984 | -6.0°C28 Oct 1988 | 54 mm8 Oct 2025 | 191 mm1972 · driest 0 mm in 2000 | 65 |
| November | 26.7°C2 Nov 2022 | -18.7°C28 Nov 1975 | 44 mm20 Nov 1976 | 143 mm1966 · driest 0 mm in 1986 | 65 |
| December | 18.2°C25 Dec 2023 | -23.0°C18 Dec 1997 | 47 mm26 Dec 2024 | 172 mm1969 · driest 1 mm in 2013 | 65 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 27 | <1 |
| February | 0 | 0 | 20 | <1 |
| March | <1 | 0 | 12 | 1 |
| April | 2 | <1 | 2 | 1 |
| May | 14 | 2 | 0 | 2 |
| June | 24 | 11 | 0 | 2 |
| July | 29 | 19 | 0 | 2 |
| August | 29 | 20 | 0 | 1 |
| September | 16 | 5 | 0 | 2 |
| October | 4 | <1 | 2 | 2 |
| November | 0 | 0 | 9 | <1 |
| December | 0 | 0 | 22 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 19% | 3% | 19% | -1.5–5.9°C |
| February | <1% | 18% | 2% | 18% | 0.6–10.0°C |
| March | 10% | 20% | 3% | 19% | 7.2–15.7°C |
| April | 34% | 21% | 4% | 21% | 15.7–21.1°C |
| May | 64% | 26% | 7% | 32% | 21.0–26.4°C |
| June | 73% | 26% | 7% | 28% | 25.8–29.6°C |
| July | 80% | 20% | 5% | 16% | 28.1–33.1°C |
| August | 84% | 15% | 5% | 13% | 27.2–33.0°C |
| September | 79% | 14% | 4% | 9% | 23.1–27.8°C |
| October | 37% | 15% | 4% | 13% | 15.3–21.4°C |
| November | 5% | 21% | 4% | 25% | 7.5–13.4°C |
| December | 0% | 21% | 4% | 24% | 0.3–6.5°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