Knokke-Heist in september: average Weather, Temperature and Climate
Weather in Knokke-Heist in september 2025
The weather in Knokke-Heist in the month of september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
58°F
Clear/Sunny
31% of time
30%
19%
14%
Weather at 12pm
67°F
Clear/Sunny
34% of time
27%
23%
12%
Weather at 6pm
63°F
Clear/Sunny
39% of time
29%
18%
11%
Weather at 3am
58°F
35%
25%
21%
13%
Evolution of daily average temperature and precipitation in Knokke-Heist in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Knokke-Heist in september.
The climate of Knokke-Heist in september is good
the weather in Knokke-Heist in september is wet (with 3.1in of rainfall over 6 days). This is better than the previous month since in august it receives an average of 4.7in of precipitation over 8 days.
The climate pleasant there this month. Temperatures are up to 68°F. The seasonal minimum is 58°F. Thus, the mean temperature average in september in Knokke-Heist is 63°F. Note that these seasonal averages are in contrast with those observed in Knokke-Heist in the month of september with a maximum record of 88°F in 2021 and a minimum record of 45°F in 2020. You can plan to have about 21 days with temperatures up to 65°F, or 70% of time.
On this month of september, day length in Knokke-Heist is generally 12:39. The sun rises at 06:22 and sunset is at 19:01.
With good weather conditions, the month of september is advisable to go in this locality in Belgium.
Seasonal average climate and temperature of Knokke-Heist in september
Check below seasonal norms These statistics are compiled from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 63°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 58°F | ||||
| Highest record temperature | 88°F (2021) | ||||
| Lowest record temperature | 45°F (2020) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 21 day(s) (70%) | ||||
| Sea temperature | |||||
| Average sea temperature | 65°F | ||||
| Lowest sea temperature | 63°F | ||||
| Highest sea temperature | 67°F | ||||
| Wind | |||||
| Wind speed | 20km/h | ||||
| Wind temperature | 56°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.1in | ||||
| Number of days with rainfall | 6 day(s) (18%) | ||||
| Record daily rainfall | 1.2in (2017) | ||||
| Other climate data | |||||
| Humidity | 86% | ||||
| Visibility | 9.49km | ||||
| Cloud cover | 39% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:22 | ||||
| Time of sunset | 19:01 | ||||
| Length of day | 12:39 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Knokke-Heist in september 2024:
65°F to 81°F
68°F to 76°F
65°F to 72°F
63°F to 67°F
61°F to 72°F
65°F to 70°F
59°F to 76°F
61°F to 70°F
61°F to 65°F
59°F to 65°F
56°F to 59°F
52°F to 58°F
56°F to 59°F
56°F to 61°F
58°F to 65°F
61°F to 65°F
59°F to 67°F
61°F to 72°F
61°F to 74°F
59°F to 70°F
59°F to 74°F
61°F to 70°F
61°F to 65°F
54°F to 61°F
58°F to 59°F
58°F to 65°F
54°F to 58°F
54°F to 56°F
47°F to 58°F
54°F to 59°F
Map: other cities in Belgium in september
Cities near Knokke-Heist:
| Zwin in september | good weather |
| Blankenberge in september | good weather |
| Brugge in september | good weather |
| De Haan in september | good weather |
| Bredene-aan-Zee in september | good weather |
| Eeklo in september | good weather |
| Ostend in september | good weather |
| Middelkerke in september | good weather |
| Westende-Bad in september | good weather |
| Nieuwpoort in september | good weather |
| Gent in september | good weather |
| Roeselare in september | good weather |
Click over cities on the map for information about the weather in september.
Knokke-Heist
perfect weather
good
tolerable
bad
very bad
Weather data for Knokke-Heist in september:
Weather data for Knokke-Heist for september are derived from an average of the weather forecast since 2009 in Knokke-Heist. There is a margin of error and these forecasts are to be considered as general information only. The weather in Knokke-Heist can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Knokke-Heist.