The biggest temperature swing occurs between November and December, as typical highs shift from 17.3°C / 63.2°F to 10.9°C / 51.6°F (about 6.4°C / 11.6°F).
| Month | Low Temperature | High Temperature | Category |
|---|---|---|---|
| January | 1.4°C | 8.6°C | COOL |
| February | 2.7°C | 10.1°C | COOL |
| March | 6.2°C | 14.4°C | COOL |
| April | 11.2°C | 19.5°C | MILD |
| May | 16.5°C | 24.2°C | WARM |
| June | 20.9°C | 27.2°C | WARM |
| July | 25.5°C | 31.3°C | HOT |
| August | 25.6°C | 31.1°C | HOT |
| September | 21.5°C | 27.2°C | WARM |
| October | 16°C | 22.5°C | WARM |
| November | 10.3°C | 17.3°C | MILD |
| December | 3.6°C | 10.9°C | COOL |
July has the warmest typical feels-like highs (36.8°C / 98.3°F), while January is coolest (4.9°C / 40.8°F).
| Month | Low Feels Like | High Feels Like | Category |
|---|---|---|---|
| January | -2.5°C | 4.9°C | COLD |
| February | -1°C | 6.8°C | COLD |
| March | 3°C | 12.2°C | COOL |
| April | 9.2°C | 18.9°C | MILD |
| May | 16.3°C | 25.4°C | WARM |
| June | 23.1°C | 30.5°C | HOT |
| July | 29.7°C | 36.8°C | HOT |
| August | 29.9°C | 36.2°C | HOT |
| September | 23.7°C | 29.7°C | WARM |
| October | 15.7°C | 22.4°C | WARM |
| November | 8.2°C | 15.5°C | MILD |
| December | -0°C | 7.5°C | COLD |
June is wettest at 260.3 mm / 10.25 inches, while December is driest at 43.9 mm / 1.73 inches.
| Month | Baseline | Rainfall | Category |
|---|---|---|---|
| January | -42.6 mm | 63.5 mm | MODERATE |
| February | -42.6 mm | 63.8 mm | MODERATE |
| March | -42.6 mm | 88.2 mm | MODERATE |
| April | -42.6 mm | 107.3 mm | MODERATE |
| May | -42.6 mm | 120.3 mm | WET |
| June | -42.6 mm | 260.3 mm | VERY WET |
| July | -42.6 mm | 176 mm | WET |
| August | -42.6 mm | 152.6 mm | WET |
| September | -42.6 mm | 115 mm | MODERATE |
| October | -42.6 mm | 64.3 mm | MODERATE |
| November | -42.6 mm | 62.2 mm | MODERATE |
| December | -42.6 mm | 43.9 mm | LIGHT |
June has the strongest peak UV (around index 8.7).
| Month | Baseline | UV Index | Category |
|---|---|---|---|
| January | 0 | 4.7 | MODERATE |
| February | 0 | 6.2 | HIGH |
| March | 0 | 7.4 | HIGH |
| April | 0 | 8.3 | VERY HIGH |
| May | 0 | 8.7 | VERY HIGH |
| June | 0 | 8.7 | VERY HIGH |
| July | 0 | 8.7 | VERY HIGH |
| August | 0 | 8.5 | VERY HIGH |
| September | 0 | 7.9 | HIGH |
| October | 0 | 6.7 | HIGH |
| November | 0 | 5.3 | MODERATE |
| December | 0 | 4.2 | MODERATE |
Daylight ranges from 10.2h in December to 14.1h in June.
| Month | Baseline | Daylight Hours | Category |
|---|---|---|---|
| January | 0h | 10.4h | BALANCED |
| February | 0h | 11.1h | BALANCED |
| March | 0h | 12h | BALANCED |
| April | 0h | 12.9h | BALANCED |
| May | 0h | 13.7h | LONG |
| June | 0h | 14.1h | LONG |
| July | 0h | 13.9h | LONG |
| August | 0h | 13.3h | LONG |
| September | 0h | 12.4h | BALANCED |
| October | 0h | 11.4h | BALANCED |
| November | 0h | 10.6h | BALANCED |
| December | 0h | 10.2h | BALANCED |
June is most humid (83.8%), while December is driest (73.1%).
| Month | Baseline | Humidity (avg) | Category |
|---|---|---|---|
| January | 69.4% | 74.7% | HUMID |
| February | 69.4% | 75.9% | MUGGY |
| March | 69.4% | 75.6% | MUGGY |
| April | 69.4% | 76.2% | MUGGY |
| May | 69.4% | 77.7% | MUGGY |
| June | 69.4% | 83.8% | MUGGY |
| July | 69.4% | 82.7% | MUGGY |
| August | 69.4% | 81.6% | MUGGY |
| September | 69.4% | 80.2% | MUGGY |
| October | 69.4% | 76% | MUGGY |
| November | 69.4% | 75.2% | MUGGY |
| December | 69.4% | 73.1% | HUMID |
March has the strongest typical average wind (13.9 km/h / 8.6 mph), while June is calmest (12.3 km/h / 7.6 mph).
| Month | Baseline | Wind (avg) | Category |
|---|---|---|---|
| January | 11.7 km/h | 12.7 km/h | CALM |
| February | 11.7 km/h | 13.3 km/h | CALM |
| March | 11.7 km/h | 13.9 km/h | CALM |
| April | 11.7 km/h | 13.8 km/h | CALM |
| May | 11.7 km/h | 13.6 km/h | CALM |
| June | 11.7 km/h | 12.3 km/h | CALM |
| July | 11.7 km/h | 13.5 km/h | CALM |
| August | 11.7 km/h | 13.6 km/h | CALM |
| September | 11.7 km/h | 12.7 km/h | CALM |
| October | 11.7 km/h | 12.3 km/h | CALM |
| November | 11.7 km/h | 12.4 km/h | CALM |
| December | 11.7 km/h | 12.5 km/h | CALM |
April is windiest by P95 gust signal (51.5 km/h / 32.0 mph).
| Month | Baseline | Wind (gusts) | Category |
|---|---|---|---|
| January | 0 km/h | 45.7 km/h | WINDY |
| February | 0 km/h | 47.9 km/h | WINDY |
| March | 0 km/h | 50.4 km/h | VERY WINDY |
| April | 0 km/h | 51.5 km/h | VERY WINDY |
| May | 0 km/h | 49.7 km/h | WINDY |
| June | 0 km/h | 46.4 km/h | WINDY |
| July | 0 km/h | 49.7 km/h | WINDY |
| August | 0 km/h | 51.5 km/h | VERY WINDY |
| September | 0 km/h | 48.2 km/h | WINDY |
| October | 0 km/h | 46.1 km/h | WINDY |
| November | 0 km/h | 46.8 km/h | WINDY |
| December | 0 km/h | 47.2 km/h | WINDY |
August has the most rain days (~18.7), while December has the fewest (~7.5). Rain days count the average number of days in a month with measurable rain (about 0.1 mm or more).
| Month | Baseline | Rain Days | Category |
|---|---|---|---|
| January | 3 days | 9.9 days | FREQUENT |
| February | 3 days | 10.7 days | FREQUENT |
| March | 3 days | 12.6 days | FREQUENT |
| April | 3 days | 12.7 days | FREQUENT |
| May | 3 days | 12 days | FREQUENT |
| June | 3 days | 17.3 days | VERY FREQUENT |
| July | 3 days | 17.1 days | VERY FREQUENT |
| August | 3 days | 18.7 days | VERY FREQUENT |
| September | 3 days | 14.4 days | FREQUENT |
| October | 3 days | 8.5 days | SOME |
| November | 3 days | 9.2 days | FREQUENT |
| December | 3 days | 7.5 days | SOME |
June has the most heavy rain/washout risk days (~10). Heavy rain days are the average number of days likely to bring stronger downpours that can disrupt outdoor plans.
| Month | Baseline | Heavy Rain Days | Category |
|---|---|---|---|
| January | 0 days | 4 days | FREQUENT |
| February | 0 days | 5 days | FREQUENT |
| March | 0 days | 6 days | PERSISTENT |
| April | 0 days | 6 days | PERSISTENT |
| May | 0 days | 6 days | PERSISTENT |
| June | 0 days | 10 days | PERSISTENT |
| July | 0 days | 8 days | PERSISTENT |
| August | 0 days | 8 days | PERSISTENT |
| September | 0 days | 6 days | PERSISTENT |
| October | 0 days | 3 days | FREQUENT |
| November | 0 days | 4 days | FREQUENT |
| December | 0 days | 3 days | FREQUENT |
July has the highest heat-risk day count (~12 days). Heat days are the average number of days that exceed our location-specific heat-risk threshold.
| Month | Baseline | Heat Days | Category |
|---|---|---|---|
| January | 0 days | 0 days | LOW |
| February | 0 days | 0 days | LOW |
| March | 0 days | 0 days | LOW |
| April | 0 days | 0 days | LOW |
| May | 0 days | 0 days | LOW |
| June | 0 days | 2 days | ELEVATED |
| July | 0 days | 12 days | SEVERE |
| August | 0 days | 10 days | HIGH |
| September | 0 days | 1 days | LOW |
| October | 0 days | 0 days | LOW |
| November | 0 days | 0 days | LOW |
| December | 0 days | 0 days | LOW |
Daylight varies from 10.2 hours in December (winter) to 14.1 hours in June (summer), which is a difference of 3.9 hours.
Northern Hemisphere seasons shape the weather patterns throughout the year. Here's what to expect in each season:
| Ranking Goal | #1 | #2 | #3 | #4 |
|---|---|---|---|---|
| Lowest rain risk | Oct 3 risk days | Dec 3 risk days | Jan 4 risk days | Nov 4 risk days |
| Lowest heatwave risk | Jan 0 risk days | Feb 0 risk days | Mar 0 risk days | Apr 0 risk days |
| Lowest cold risk | May 0 risk days | Jun 0 risk days | Jul 0 risk days | Aug 0 risk days |
| Lowest wind disruption risk | Jan 46 km/h | Oct 46 km/h | Jun 46 km/h | Nov 47 km/h |
| Most comfortable evenings | Oct 79 / 100 | May 74 / 100 | Sep 57 / 100 | Apr 51 / 100 |
| Best outdoor reliability | Oct 99 / 100 | Dec 95 / 100 | Jan 93 / 100 | Nov 90 / 100 |
Click any month for detailed weather information and packing advice.
Get personalized month rankings based on weather comfort, outdoor activity suitability, and seasonal conditions.
View Best Time to VisitThe best months to visit Shanghai depend on your preferences. For warm weather, July is typically the warmest month. For dry conditions, December, November, January tend to have the least rainfall. Consider your priorities, and whether you prefer warmer temperatures, drier weather, or longer daylight hours.
July is typically the warmest month in Shanghai, with average high temperatures reaching around 31°C (88°F). This is peak summer weather, ideal for outdoor activities and sightseeing.
January is usually the coldest month, with average low temperatures dropping to around 1°C (34°F). Pack warm layers if visiting during this time, especially for evening activities.
June typically sees the most rainfall in Shanghai, averaging around 260mm (10.2 inches). It's wise to pack waterproof layers and have some indoor backup plans if you're visiting during this month.
December is typically the driest month, with average rainfall of just 44mm (1.7 inches). This makes it an excellent time for outdoor exploration and activities with minimal risk of rain disruption.
Temperatures in Shanghai range from average lows of 13°C (56°F) to highs of 20°C (69°F). This variation means you'll want to pack differently depending on when you visit, as layers are key for adapting to the seasonal changes.
Yes, sun protection is important in Shanghai. UV levels can reach 9 during peak months, which is considered very high. Pack sunscreen (SPF 30+), sunglasses, and a hat, especially if you'll be outdoors for extended periods.