September
September · October · August
United States · 1991–2020
September leads for comfortable weather in Sand City: typically 21.6°C by day, 11.9°C at night, with 2 mm of rain. Based on measured 1991–2020 NOAA station history.
September · October · August
September · August · October
June · July · August
The weakest month is January, scoring 42 against September’s 86 — days reach only 15.7°C, 8° 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 | 15.7°C | 7.2°C | 111 mm | 9.1 | 12.7°C | 9 h 55 | 42 | Strong coverage |
| February | 16.1°C | 7.4°C | 103 mm | 9.3 | 12.6°C | 10 h 47 | 45 | Strong coverage |
| March | 16.9°C | 7.8°C | 89 mm | 8.4 | 12.5°C | 11 h 51 | 51 | Strong coverage |
| April | 17.3°C | 8.2°C | 35 mm | 5 | 12.1°C | 13 h 05 | 64 | Strong coverage |
| May | 17.8°C | 9.4°C | 16 mm | 2.9 | 12.1°C | 14 h 06 | 69 | Strong coverage |
| June | 18.9°C | 10.4°C | 4 mm | 1 | 12.6°C | 14 h 39 | 75 | Strong coverage |
| July | 19.5°C | 11.7°C | 1 mm | 0.2 | 13.7°C | 14 h 26 | 79 | Strong coverage |
| August | 20.3°C | 12°C | 2 mm | 0.4 | 14.4°C | 13 h 33 | 82 | Strong coverage |
| September | 21.6°C | 11.9°C | 2 mm | 0.6 | 14.7°C | 12 h 22 | 86 | Strong coverage |
| October | 21.3°C | 10.9°C | 21 mm | 2.3 | 14.4°C | 11 h 11 | 84 | Strong coverage |
| November | 18°C | 8.7°C | 48 mm | 5.8 | 13.8°C | 10 h 10 | 65 | Strong coverage |
| December | 15.1°C | 6.9°C | 96 mm | 8.4 | 13.0°C | 9 h 40 | 43 | 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 | 32.2°C11 Jan 1942 | -5.6°C10 Jan 1949 | 73 mm27 Jan 2021 | 270 mm1995 · driest 0 mm in 2015 | 78 |
| February | 30.0°C20 Feb 1995 | -3.3°C13 Feb 1949 | 74 mm3 Feb 1998 | 363 mm1998 · driest 1 mm in 1953 | 78 |
| March | 31.1°C14 Mar 2015 | 0.0°C1 Mar 1943 | 56 mm22 Mar 2005 | 244 mm1983 · driest 0 mm in 2026 | 76 |
| April | 33.9°C20 Apr 2009 | 1.7°C1 Apr 1976 | 54 mm1 Apr 1974 | 181 mm1967 · driest 1 mm in 1992 | 76 |
| May | 34.4°C15 May 1970 | 1.7°C2 May 1942 | 36 mm18 May 1957 | 72 mm2019 · driest 0 mm in 2022 | 76 |
| June | 36.1°C25 Jun 1993 | 5.0°C20 Jun 1942 | 25 mm16 Jun 1995 | 40 mm1967 · driest 0 mm in 2006 | 76 |
| July | 36.1°C17 Jul 1988 | 6.1°C2 Jul 1952 | 18 mm2 Jul 1980 | 19 mm1980 · driest 0 mm in 1984 | 75 |
| August | 35.6°C24 Aug 2010 | 7.2°C10 Aug 1956 | 11 mm18 Aug 1975 | 25 mm1976 · driest 0 mm in 1958 | 74 |
| September | 40.0°C2 Sep 2017 | 5.0°C25 Sep 1942 | 40 mm18 Sep 1959 | 80 mm1959 · driest 0 mm in 1995 | 75 |
| October | 40.0°C5 Oct 1987 | 1.7°C29 Oct 1942 | 68 mm13 Oct 2009 | 111 mm2000 · driest 0 mm in 2020 | 77 |
| November | 35.0°C8 Nov 1956 | -1.1°C20 Nov 1941 | 62 mm26 Nov 1997 | 190 mm1997 · driest 0 mm in 1956 | 75 |
| December | 31.7°C3 Dec 1958 | -6.7°C22 Dec 1990 | 98 mm23 Dec 1955 | 249 mm1955 · driest 4 mm in 1999 | 76 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | <1 | 0 | 4 |
| February | <1 | 0 | 4 |
| March | 1 | 0 | 3 |
| April | 2 | <1 | 1 |
| May | 2 | <1 | <1 |
| June | 2 | <1 | <1 |
| July | 2 | <1 | 0 |
| August | 3 | <1 | 0 |
| September | 6 | 2 | 0 |
| October | 7 | 2 | <1 |
| November | 2 | <1 | 2 |
| December | <1 | 0 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 11% | 30% | 13% | 37% | 13.9–17.8°C |
| February | 15% | 30% | 11% | 37% | 14.5–18.0°C |
| March | 17% | 27% | 10% | 30% | 14.7–18.6°C |
| April | 20% | 16% | 4% | 12% | 15.5–18.9°C |
| May | 21% | 8% | <1% | 5% | 16.0–19.7°C |
| June | 31% | 4% | <1% | <1% | 17.5–21.0°C |
| July | 41% | <1% | 0% | 0% | 18.0–21.4°C |
| August | 55% | 1% | 0% | <1% | 18.8–22.1°C |
| September | 65% | 3% | <1% | 1% | 19.7–24.5°C |
| October | 56% | 8% | 2% | 5% | 19.4–23.0°C |
| November | 30% | 18% | 6% | 22% | 16.2–20.4°C |
| December | 11% | 26% | 9% | 31% | 13.8–17.7°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