Climate Insights for Bonan

Dali Baizu Zizhizhou, Yunnan Sheng, China

Hottest
August
25°C peak
Coldest
January
1°C low
Wettest
July
258mm rain
Best to Visit
April
Mild temps & low rain

Climate Overview

The climate in Bonan is temperate. The average annual temperature is 15°C and approximately 1290mm of precipitation falls per year. July is the wettest month, receiving around 258mm of rainfall. Bonan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, June, July. The coldest months are January, December, February, when temperatures can drop to 1°C.

Temperature

0° 5° 10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 15° Average: 8° Min: 1° Feb Max: 17° Average: 10° Min: 3° Mar Max: 20° Average: 13° Min: 6° Apr Max: 22° Average: 16° Min: 10° May Max: 24° Average: 19° Min: 14° Jun Max: 25° Average: 21° Min: 17° Jul Max: 24° Average: 20° Min: 17° Aug Max: 25° Average: 20° Min: 17° Sep Max: 24° Average: 19° Min: 16° Oct Max: 22° Average: 17° Min: 13° Nov Max: 19° Average: 12° Min: 6° Dec Max: 16° Average: 9° Min: 2°
Max
Average
Min

Temperatures in Bonan vary considerably across the year, with a 24°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 25°C with a mean of 20°C. January is the coolest month, with minimum temperatures around 1°C and an average of 8°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 31mm Snow: 2mm Feb Precipitation: 31mm Snow: 1mm Mar Precipitation: 33mm Snow: 0mm Apr Precipitation: 56mm Snow: 0mm May Precipitation: 108mm Snow: 0mm Jun Precipitation: 183mm Snow: 0mm Jul Precipitation: 258mm Snow: 0mm Aug Precipitation: 238mm Snow: 0mm Sep Precipitation: 177mm Snow: 0mm Oct Precipitation: 125mm Snow: 0mm Nov Precipitation: 33mm Snow: 0mm Dec Precipitation: 17mm Snow: 0mm
Precipitation
Snow

Bonan is a fairly wet location, receiving approximately 1290mm of precipitation annually, which averages out to around 107mm per month. The wettest month is July, averaging 258mm of rainfall. August and June also tend to see above-average precipitation. The driest month is December, with just 17mm. That's 241mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 5km/h Feb Wind Speed: 6km/h Mar Wind Speed: 7km/h Apr Wind Speed: 7km/h May Wind Speed: 6km/h Jun Wind Speed: 5km/h Jul Wind Speed: 4km/h Aug Wind Speed: 4km/h Sep Wind Speed: 4km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 4km/h
Wind Speed

Bonan is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

87 days until Winter

It is currently autumn in Bonan, which began on September 23, 2026. Bonan is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 25°C, while the coldest stretch bottoms out in January near 1°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from 6 to 24°C. Precipitation is moderate at around 197mm for the season, averaging 66mm per month. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 17 to 25°C. Rainfall is heavy, totalling around 679mm across the season with a monthly average of 226mm. Winds are generally light, averaging 4km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 6 to 24°C. Rainfall is heavy, totalling around 335mm across the season with a monthly average of 112mm. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 1 to 17°C. Rainfall is relatively light, with around 79mm over the season and a monthly average of 26mm. Winds are generally light, averaging 5km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 8°
Feb 10°
Mar 13°
Apr 16°
May 19°
Jun 21°
Jul 20°
Aug 20°
Sep 19°
Oct 17°
Nov 12°
Dec 9°

The best time to visit Bonan is during April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 56mm per month. By contrast, August can be uncomfortably hot with highs reaching 25°C, while January is the coldest period with lows dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Bonan based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
1 °C
15 °C
5 km/h
31 mm
2 cm
Feb
3 °C
17 °C
6 km/h
31 mm
1 cm
Mar
6 °C
20 °C
7 km/h
33 mm
0 cm
Apr
10 °C
22 °C
7 km/h
56 mm
0 cm
May
14 °C
24 °C
6 km/h
108 mm
0 cm
Jun
17 °C
25 °C
5 km/h
183 mm
0 cm
Jul
17 °C
24 °C
4 km/h
258 mm
0 cm
Aug
17 °C
25 °C
4 km/h
238 mm
0 cm
Sep Current
16 °C
24 °C
4 km/h
177 mm
0 cm
Oct
13 °C
22 °C
4 km/h
125 mm
0 cm
Nov
6 °C
19 °C
4 km/h
33 mm
0 cm
Dec
2 °C
16 °C
4 km/h
17 mm
0 cm
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Metric (°C, km/h)