Heihe Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Heihe.
Climate overview of Heihe
The climate in Heihe, China, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to -15°C (5°F) in January.
The city receives around 585 mm (23 in) of rain/snowfall per year. It experiences a distinct dry season from October to April, with warm summers and very cold winters. July is the wettest month and January the driest. The most sunshine falls in June, with an average of 8.5 hours of daily sunshine.
Heihe Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Heihe - and find the best time to visit.
Monthly Temperature in Heihe
In Heihe, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -15°C (5°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to -27°C (-17°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Heihe
On average, Heihe receives a reasonable amount of rain/snowfall, with an annual precipitation of 585 mm (23 in). The seasons in Heihe bring significant changes in precipitation. The wettest month, July, receives high rainfall, with an average of 128 mm (5 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 7.7 mm (0.3 in) over 6 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Heihe Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Heihe
In Heihe, summer days are longer and more sunny, with daily sunshine hours peaking at 8.5 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Heihe by Month
The relative humidity is high throughout the year in Heihe.
The city experiences its highest humidity in January, reaching 84%. In April, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Heihe
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and September
- Warmest weather: July
- Most sunshine: May and June
- Fewer rainy days: January, February, March, October and November
- Wettest months: May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: A distinct dry season from October to April, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -27°C (-17°F).
Frequently asked questions about the climate in Heihe
What is the best time to visit Heihe?
May, June and September typically offer the most optimal weather in Heihe. In contrast, January, February, March, October, November and December tend to have less optimal conditions. Heihe has a distinct dry season from October to April, with warm summers and very cold winters.
What temperatures can I expect in Heihe?
Daytime highs range from -15°C (5°F) in January to 28°C (82°F) in July. Nighttime lows range from -27°C (-17°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Heihe get?
Annual rainfall is around 585 mm (23 in). July is the wettest month with 128 mm (5 in), while January is the driest with 7.7 mm (0.3 in).
How sunny is Heihe?
Heihe receives around 2,398 hours of sunshine per year. June is the sunniest month with 255 hours, while December is the cloudiest with just 125 hours. Overall, Heihe enjoys abundant sunshine.
Heihe 3-Day Forecast
Heihe on the map
Heihe is highlighted - select any city to see its climate.
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