September
Other strong months: May and April
China · 1991–2020
For Heitang, September has the most comfortable weather in our climate comparison. Typical daytime highs are 23.6°C, nights average 15°C, and rainfall totals about 102 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Other strong months: May and April
Other strong months: November and October
Make the answer personal
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
2 months fit your choices for Heitang
January has the lowest comfort score at 15 out of 100, compared with September at 82. The main reason is that days reach only 6.7°C, 17° below the 24°C the score treats as ideal.
Quick answers
These answers come from the same measured monthly climate record shown on this page.
September is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.6°C and 102 mm of rain.
July is hottest in this record, with a typical daytime high of 27.2°C and a night-time low of 18.2°C.
December has the lowest monthly rainfall total at 15 mm.
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 6.7°C | 0.8°C | 18 mm | 5.2 | 10 h 39 | 15 | Strong coverage |
| February | 10.1°C | 2.6°C | 16 mm | 5.4 | 11 h 13 | 30 | Strong coverage |
| March | 14.9°C | 6.1°C | 36 mm | 8.5 | 11 h 56 | 49 | Strong coverage |
| April | 19.9°C | 10.4°C | 70 mm | 10.8 | 12 h 45 | 67 | Strong coverage |
| May | 22.9°C | 13.6°C | 112 mm | 11.6 | 13 h 25 | 75 | Strong coverage |
| June | 24.7°C | 16.5°C | 175 mm | 15 | 13 h 47 | 65 | Strong coverage |
| July | 27.2°C | 18.2°C | 202 mm | 13.9 | 13 h 39 | 51 | Strong coverage |
| August | 27°C | 17.6°C | 170 mm | 12.6 | 13 h 04 | 58 | Strong coverage |
| September | 23.6°C | 15°C | 102 mm | 11.8 | 12 h 17 | 82 | Strong coverage |
| October | 18.1°C | 11.2°C | 78 mm | 13 | 11 h 29 | 59 | Strong coverage |
| November | 14.3°C | 6.8°C | 26 mm | 5.3 | 10 h 49 | 51 | Strong coverage |
| December | 8.5°C | 2.2°C | 15 mm | 5.1 | 10 h 29 | 24 | Strong coverage |
What has changed
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 27.8°C31 Jan 2014 | -8.2°C9 Jan 1956 | 19 mm22 Jan 1976 | 34 mm1991 · driest 4 mm in 2010 | 76 |
| February | 29.7°C14 Feb 1969 | -10.9°C9 Feb 1977 | 13 mm24 Feb 2001 | 51 mm1983 · driest 3 mm in 2003 | 76 |
| March | 33.8°C18 Mar 1998 | -5.8°C2 Mar 1959 | 31 mm27 Mar 2015 | 74 mm2014 · driest 5 mm in 2021 | 76 |
| April | 33.4°C23 Apr 2012 | -3.8°C5 Apr 1969 | 56 mm18 Apr 2024 | 176 mm1964 · driest 15 mm in 1995 | 76 |
| May | 36.4°C7 May 2020 | 3.7°C8 May 1991 | 124 mm12 May 2016 | 368 mm2013 · driest 25 mm in 1958 | 76 |
| June | 34.2°C1 Jun 1991 | 6.9°C10 Jun 1967 | 146 mm29 Jun 2006 | 305 mm1957 · driest 43 mm in 1993 | 76 |
| July | 34.6°C16 Jul 2022 | 10.7°C30 Jul 1989 | 116 mm7 Jul 1970 | 424 mm1954 · driest 27 mm in 1989 | 76 |
| August | 33.9°C14 Aug 2005 | 9.5°C20 Aug 1965 | 112 mm27 Aug 1998 | 354 mm1974 · driest 17 mm in 2022 | 75 |
| September | 35.1°C1 Sep 2006 | 6.3°C29 Sep 1994 | 97 mm3 Sep 2020 | 294 mm2020 · driest 19 mm in 2001 | 75 |
| October | 30.5°C1 Oct 1999 | -0.2°C26 Oct 1960 | 75 mm3 Oct 1991 | 172 mm2015 · driest 12 mm in 2022 | 75 |
| November | 29.0°C7 Nov 1953 | -4.2°C29 Nov 1956 | 39 mm23 Nov 1957 | 106 mm1955 · driest 3 mm in 2022 | 75 |
| December | 26.2°C14 Dec 2023 | -8.0°C14 Dec 1975 | 18 mm10 Dec 1979 | 35 mm1979 · driest 2 mm in 2023 | 75 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 12 | <1 |
| February | <1 | 0 | 5 | 0 |
| March | 3 | <1 | <1 | <1 |
| April | 7 | 1 | 0 | 2 |
| May | 12 | 2 | 0 | 3 |
| June | 15 | 2 | 0 | 5 |
| July | 25 | 6 | 0 | 6 |
| August | 23 | 7 | 0 | 5 |
| September | 14 | 2 | 0 | 3 |
| October | 4 | <1 | 0 | 2 |
| November | <1 | 0 | <1 | <1 |
| December | <1 | 0 | 6 | <1 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 2% | 16% | <1% | 12% | 4.2–9.5°C |
| February | 10% | 20% | <1% | 22% | 5.5–13.6°C |
| March | 25% | 24% | 1% | 25% | 11.2–18.5°C |
| April | 38% | 34% | 5% | 42% | 17.3–22.7°C |
| May | 46% | 41% | 11% | 57% | 20.6–24.4°C |
| June | 49% | 48% | 16% | 69% | 22.7–26.1°C |
| July | 61% | 39% | 18% | 50% | 25.8–28.8°C |
| August | 61% | 39% | 17% | 48% | 25.3–28.8°C |
| September | 54% | 38% | 10% | 52% | 21.2–25.5°C |
| October | 28% | 37% | 5% | 46% | 15.9–20.1°C |
| November | 15% | 20% | 2% | 17% | 11.4–16.5°C |
| December | 2% | 14% | <1% | 11% | 6.0–11.1°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Next step
The weather comparison for Heitang is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
How travel partnerships will work