September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Bombay: typically 23.1°C by day, 11.4°C at night, with 74 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
May · September · October
The weakest month is January, scoring 5 against September’s 81 — days reach only -1.1°C, 25° 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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | -1.1°C | -8.4°C | 50 mm | 7.5 | 1.7°C | 9 h 15 | 5 | Strong coverage |
| February | 0.4°C | -7.8°C | 47 mm | 5.9 | 0.8°C | 10 h 25 | 5 | Strong coverage |
| March | 6.3°C | -3.5°C | 53 mm | 7.3 | 1.2°C | 11 h 47 | 5 | Strong coverage |
| April | 13.7°C | 2.3°C | 90 mm | 9.1 | 4.1°C | 13 h 22 | 30 | Strong coverage |
| May | 20.6°C | 8.8°C | 92 mm | 10 | 8.7°C | 14 h 42 | 63 | Strong coverage |
| June | 25.9°C | 14.2°C | 93 mm | 8.2 | 15.5°C | 15 h 26 | 80 | Strong coverage |
| July | 28.1°C | 16.4°C | 70 mm | 7.5 | 20.9°C | 15 h 08 | 75 | Strong coverage |
| August | 27°C | 15.9°C | 85 mm | 8 | 22.2°C | 13 h 59 | 77 | Strong coverage |
| September | 23.1°C | 11.4°C | 74 mm | 7.2 | 19.4°C | 12 h 27 | 81 | Strong coverage |
| October | 15.9°C | 5.7°C | 80 mm | 8.8 | 13.0°C | 10 h 56 | 45 | Strong coverage |
| November | 8°C | 0.1°C | 64 mm | 7.6 | 7.4°C | 9 h 36 | 12 | Strong coverage |
| December | 1.6°C | -4.7°C | 51 mm | 7.2 | 3.7°C | 8 h 56 | 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 | 15.6°C7 Jan 2008 | -28.3°C19 Jan 1994 | 48 mm11 Jan 2020 | 106 mm2005 · driest 0 mm in 1973 | 56 |
| February | 20.6°C27 Feb 2024 | -26.1°C3 Feb 1996 | 56 mm21 Feb 1997 | 101 mm2023 · driest 2 mm in 1987 | 56 |
| March | 30.0°C21 Mar 2012 | -23.3°C3 Mar 1980 | 58 mm2 Mar 1976 | 145 mm1976 · driest 9 mm in 2001 | 55 |
| April | 31.1°C22 Apr 1980 | -12.2°C7 Apr 1982 | 51 mm16 Apr 1992 | 204 mm2013 · driest 22 mm in 1978 | 56 |
| May | 35.6°C29 May 2006 | -3.9°C1 May 1978 | 97 mm18 May 2020 | 186 mm2004 · driest 10 mm in 1988 | 56 |
| June | 39.4°C28 Jun 1971 | 0.0°C11 Jun 1972 | 101 mm22 Jun 1996 | 247 mm2017 · driest 18 mm in 1988 | 56 |
| July | 37.8°C14 Jul 1995 | 3.9°C5 Jul 1972 | 76 mm29 Jul 1996 | 198 mm2023 · driest 11 mm in 1989 | 55 |
| August | 37.8°C7 Aug 2001 | 1.7°C29 Aug 1982 | 97 mm21 Aug 1975 | 324 mm1975 · driest 22 mm in 1976 | 52 |
| September | 35.0°C3 Sep 1973 | -2.2°C27 Sep 1989 | 205 mm11 Sep 1986 | 466 mm1986 · driest 0 mm in 1979 | 53 |
| October | 31.7°C7 Oct 2007 | -7.8°C21 Oct 1974 | 83 mm23 Oct 2017 | 184 mm2019 · driest 16 mm in 1982 | 56 |
| November | 23.9°C9 Nov 2020 | -16.1°C29 Nov 1995 | 54 mm5 Nov 1990 | 169 mm2003 · driest 9 mm in 2012 | 56 |
| December | 19.4°C5 Dec 2001 | -23.9°C29 Dec 1976 | 41 mm15 Dec 1971 | 131 mm1971 · driest 9 mm in 1976 | 56 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 2 | 5 |
| February | 0 | 0 | 26 | 2 | 4 |
| March | <1 | 0 | 23 | 2 | 2 |
| April | 1 | <1 | 10 | 3 | <1 |
| May | 8 | 2 | <1 | 3 | 0 |
| June | 18 | 6 | 0 | 3 | 0 |
| July | 25 | 10 | 0 | 2 | 0 |
| August | 23 | 6 | 0 | 3 | 0 |
| September | 12 | 2 | <1 | 2 | 0 |
| October | 3 | <1 | 4 | 3 | 0 |
| November | 0 | 0 | 16 | 2 | 1 |
| December | 0 | 0 | 26 | 1 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 22% | 4% | 20% | -4.6–1.3°C |
| February | <1% | 20% | 4% | 16% | -2.6–3.8°C |
| March | 3% | 24% | 6% | 26% | 3.3–9.2°C |
| April | 15% | 29% | 9% | 32% | 11.4–16.3°C |
| May | 43% | 29% | 8% | 35% | 18.2–23.7°C |
| June | 68% | 27% | 9% | 30% | 23.9–28.1°C |
| July | 76% | 24% | 8% | 25% | 25.7–30.4°C |
| August | 73% | 26% | 10% | 26% | 25.1–28.8°C |
| September | 57% | 26% | 9% | 31% | 21.1–25.4°C |
| October | 19% | 28% | 8% | 31% | 13.3–17.9°C |
| November | 2% | 25% | 7% | 24% | 5.2–11.0°C |
| December | 0% | 24% | 5% | 22% | -1.8–4.5°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