June
Other strong months: May and September
75/100 weather score
China · 1991–2020
Best time to visit
Sumchêng
For Sumchêng, June has the most comfortable weather in our climate comparison. Typical daytime highs are 23.9°C, nights average 11°C, and rainfall totals about 96 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJune
Typical daytime high23.9°C
Typical night-time low11°C
June rainfall96 mm
May
Other strong months: October and September
89/100 weather score
Make the answer personal
Choose the weather
that suits you.
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.
3 months fit your choices for Sumchêng
January has the lowest comfort score at 8 out of 100, compared with June at 75. The main reason is that days reach only 8.3°C, 16° below the 24°C the score treats as ideal, and nights drop to -7.2°C.
Quick answers
Planning a trip to Sumchêng?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Sumchêng?
June is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.9°C and 96 mm of rain.
What is the hottest month in Sumchêng?
June is hottest in this record, with a typical daytime high of 23.9°C and a night-time low of 11°C.
Which month has the least rain?
December has the lowest monthly rainfall total at 0 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
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 | 8.3°C | -7.2°C | 1 mm | 0.3 | 10 h 24 | 8 | Good coverage |
| February | 10.2°C | -4.4°C | 2 mm | 0.3 | 11 h 05 | 19 | Good coverage |
| March | 13.4°C | -0.6°C | 4 mm | 1.1 | 11 h 54 | 37 | Good coverage |
| April | 16.4°C | 2.9°C | 9 mm | 2.5 | 12 h 51 | 53 | Good coverage |
| May | 20.6°C | 7°C | 36 mm | 6.5 | 13 h 38 | 71 | Good coverage |
| June | 23.9°C | 11°C | 96 mm | 12.8 | 14 h 04 | 75 | Good coverage |
| July | 23.3°C | 11.5°C | 149 mm | 17.4 | 13 h 54 | 63 | Good coverage |
| August | 22.2°C | 11°C | 141 mm | 16.7 | 13 h 13 | 60 | Good coverage |
| September | 20.9°C | 9.2°C | 73 mm | 11.3 | 12 h 18 | 67 | Good coverage |
| October | 17.9°C | 3.5°C | 9 mm | 2 | 11 h 24 | 59 | Good coverage |
| November | 13.2°C | -2.5°C | 1 mm | 0.3 | 10 h 36 | 33 | Good coverage |
| December | 9.7°C | -6.4°C | 0 mm | 0.1 | 10 h 13 | 14 | Good coverage |
What has changed
Recent daytime highs are
2.4°C warmer in Sumchêng.
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.
Jan
+1.9
Feb
+1.9
Mar
+2.3
Apr
+1.6
May
+1.7
Jun
+2.2
Jul
+2.1
Aug
+2.6
Sep
+2.9
Oct
+3.0
Nov
+3.0
Dec
+3.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.5°C31 Jan 2001 | -16.5°C4 Jan 1983 | 10 mm3 Jan 2019 | 30 mm2019 · driest 0 mm in 1983 | 71 |
| February | 21.0°C28 Feb 2021 | -15.4°C2 Feb 1959 | 17 mm13 Feb 2015 | 27 mm2015 · driest 0 mm in 1972 | 71 |
| March | 25.1°C30 Mar 2022 | -13.6°C1 Mar 1957 | 17 mm29 Mar 1998 | 19 mm1998 · driest 0 mm in 2015 | 71 |
| April | 25.9°C24 Apr 2009 | -8.1°C12 Apr 1970 | 15 mm25 Apr 2006 | 26 mm2004 · driest 0 mm in 1960 | 71 |
| May | 29.4°C18 May 1995 | -2.7°C3 May 1963 | 24 mm11 May 2002 | 88 mm2016 · driest 0 mm in 1987 | 71 |
| June | 38.8°C3 Jun 1968 | 2.0°C9 Jun 1996 | 50 mm21 Jun 2017 | 193 mm2003 · driest 6 mm in 1983 | 71 |
| July | 36.6°C2 Jul 1968 | 4.5°C6 Jul 1978 | 42 mm28 Jul 1969 | 257 mm2014 · driest 19 mm in 2022 | 71 |
| August | 36.4°C3 Aug 1968 | 3.3°C25 Aug 1971 | 97 mm19 Aug 1968 | 283 mm1962 · driest 29 mm in 1984 | 71 |
| September | 29.8°C5 Sep 1968 | 0.3°C30 Sep 1976 | 53 mm7 Sep 1968 | 147 mm1993 · driest 2 mm in 2023 | 70 |
| October | 27.9°C4 Oct 1968 | -7.2°C28 Oct 1957 | 38 mm7 Oct 1968 | 74 mm1968 · driest 0 mm in 1991 | 70 |
| November | 22.8°C14 Nov 2009 | -10.5°C26 Nov 1961 | 15 mm3 Nov 1978 | 22 mm1978 · driest 0 mm in 1957 | 70 |
| December | 20.1°C4 Dec 2011 | -16.1°C31 Dec 1959 | 50 mm20 Dec 2018 | 142 mm2018 · driest 0 mm in 2012 | 70 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 30 | 0 |
| February | 0 | 26 | 0 |
| March | 0 | 19 | 0 |
| April | <1 | 3 | 0 |
| May | 3 | <1 | <1 |
| June | 12 | 0 | 3 |
| July | 8 | 0 | 5 |
| August | 4 | 0 | 5 |
| September | <1 | 0 | 2 |
| October | <1 | 4 | 0 |
| November | 0 | 26 | 0 |
| December | 0 | 30 | 0 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 83); on 2011–2025 it is September (86). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | <1% | 1% | 0% | <1% | 5.7–10.5°C |
| February | <1% | 1% | <1% | <1% | 7.7–12.1°C |
| March | 2% | 3% | <1% | <1% | 10.9–15.0°C |
| April | 11% | 7% | <1% | 3% | 14.4–17.4°C |
| May | 48% | 18% | 3% | 17% | 18.3–22.0°C |
| June | 64% | 35% | 9% | 50% | 21.3–25.7°C |
| July | 49% | 51% | 16% | 70% | 21.2–25.0°C |
| August | 45% | 52% | 15% | 68% | 20.3–23.9°C |
| September | 49% | 34% | 6% | 39% | 18.9–22.3°C |
| October | 24% | 7% | <1% | 3% | 14.5–19.7°C |
| November | <1% | 1% | <1% | 0% | 9.9–14.8°C |
| December | <1% | <1% | <1% | <1% | 6.2–11.1°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
Where these figures
come from.
- Place identity
- GeoNames 1279425
- NOAA station
- CHM00055591 · LHASA
- Station distance
- 36.7 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 23 usable years
- Daylight
- Calculated from latitude 29.98°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Sumchêng 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