Early September 1 September
74°F
Typical afternoon high
28% historical wet-day frequency
Germany · Countryside
Is September a good time?
September averages 69°F afternoons, with about 9 rain days. Later September is typically cooler.
Historical Braunschweig regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Braunschweig and Goslar; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#4 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your September
Afternoons around 69°F (21°C): light layers; nights around 49°F (10°C): a sweater and a light jacket. Bring rain gear: about 9 days with at least 1 mm of rain. About 13 hours of daylight.
The sun rises about 06:51 and sets about 19:37 (local time, mid-month). Mornings start around 49°F (10°C); afternoons reach about 69°F (21°C). Expect rain on about 9 days in a typical September.
Early, middle or late?
Early September is typically warmer. The afternoon high averages 74°F on the 1st, versus 64°F on the 30th. Historical wet-day frequency rises from 28% to 32% between those dates.
74°F
Typical afternoon high
28% historical wet-day frequency
69°F
Typical afternoon high
27% historical wet-day frequency
64°F
Typical afternoon high
32% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 174° | 273° | 373° | 473° | 572° | ||
| 672° | 772° | 872° | 971° | 1071° | 1171° | 1270° |
| 1370° | 1470° | 1569° | 1669° | 1768° | 1868° | 1967° |
| 2067° | 2167° | 2267° | 2366° | 2466° | 2565° | 2665° |
| 2765° | 2865° | 2964° | 3064° |
Afternoon high rain likely (25%+) local school holidays public holiday event
School-holiday dates for September 2027 aren't available in our data yet. A day without a school marker doesn't mean schools are open.
Afternoons cool from about 73°F (23°C) in the first week to 65°F (18°C) in the last. The chance of a wet day runs 26–32%.
Visitor season
Steady all year. September averages 93% of August's overnight stays per day. Overnight demand varies little across the year.
Overnight stays across Braunschweig do not measure queues, day visitors or congestion at individual sights. For its size, typical for Europe this month.
Hotel price season
About usual. Estimated from national hotel prices and local visitor demand; no measured regional room rate is available.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Year-to-year variation
In the 15 years from 2011 to 2025, the month's afternoons averaged between 65°F (18°C) and 75°F (24°C); in 9 of them they were within 3°F (1.5°C) of the typical 69°F (21°C). Rain days ranged from 4 to 12; half the years had 5–11.
Rain days in each September
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 70°F | 6 |
| 2012 | 67°F | 6 |
| 2013 | 65°F | 9 |
| 2014 | 68°F | 11 |
| 2015 | 65°F | 12 |
| 2016 | 75°F | 4 |
| 2017 | 65°F | 12 |
| 2018 | 71°F | 7 |
| 2019 | 68°F | 9 |
| 2020 | 70°F | 5 |
| 2021 | 69°F | 5 |
| 2022 | 66°F | 11 |
| 2023 | 75°F | 4 |
| 2024 | 71°F | 9 |
| 2025 | 69°F | 10 |
Checked against 11 local weather stations. How we check
Compare dates
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 76°F | 69°F | 59°F |
| Rain days | 8 | 9 | 11 |
| Overnight demand | 100% | 93% | 94% |
August: Warmer afternoons than September. August guide →
October: Cooler afternoons and more rain days than September. October guide →
Overnight demand measures accommodation stays, not queues.
Yellow marks the top three months on the Balanced mix. September stays as your reference.
Hotel stays vary little through the year. No other scored month has a Weather score at least 1.0 point higher than September.
Your comparison
Overnight stays vary little through the year.
National hotel prices and local visitor demand suggest about usual. No measured regional room rate is available.
Read the August guide →| Typical conditions | September | August |
|---|---|---|
| Afternoons | 69°F | 76°F |
| Nights | 49°F | 56°F |
| Rain days | 9 | 8 |
| Visitor season | Steady all year | Steady all year |
| Overall / 10 | 7.4 | 7.7 |
| Month rank | #4 | #1 |
| Month | Overall | Rank | High | Low | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|
| January | 5.2 | #12 | 41°F | 30°F | 15 | 3.9 | Steady all year |
| February | 5.4 | #10 | 44°F | 30°F | 9 | 4.5 | Steady all year |
| March | 6.1 | #8 | 51°F | 33°F | 9 | 5.7 | Steady all year |
| April | 6.7 | #6 | 59°F | 39°F | 8 | 7.1 | Steady all year |
| May | 7.2 | #5 | 67°F | 46°F | 7 | 8.1 | Steady all year |
| June | 7.6 | #2 | 74°F | 53°F | 9 | 8.8 | Steady all year |
| July | 7.6 | #3 | 76°F | 55°F | 10 | 8.8 | Steady all year |
| August | 7.7 | #1 | 76°F | 56°F | 8 | 9.0 | Steady all year |
| September | 7.4 | #4 | 69°F | 49°F | 9 | 8.6 | Steady all year |
| October | 6.4 | #7 | 59°F | 44°F | 11 | 6.5 | Steady all year |
| November | 5.6 | #9 | 48°F | 37°F | 11 | 5.0 | Steady all year |
| December | 5.2 | #11 | 44°F | 34°F | 14 | 4.1 | Steady all year |
Near here
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
HanoverLower Saxony · Germany · about 50 miles
Balanced Overall 6.8 · Very good weather, 69°F (21°C) · Peak season · Cost pricey
Saxony-AnhaltGermany · about 60 miles
Balanced Overall 6.9 · Very good weather, 70°F (21°C) · Peak season · Cost pricey
BerlinGermany · about 130 miles
Balanced Overall 7.6 · Very good weather, 70°F (21°C) · Steady all year · Cost pricey
Schleswig-HolsteinGermany · about 150 miles
Balanced Overall 5.9 · Good weather, 67°F (20°C) · Busy season · Cost pricey
Mecklenburg-VorpommernBaltic coast · Germany · about 150 miles
Balanced Overall 6.2 · Good weather, 68°F (20°C) · Busy season · Cost pricey
Elsewhere in Europe
Braunschweig & the Harz (west)'s weather ranks 67 of 117 countryside regions this month. These countryside regions outside Germany have clearly better weather on your dates, nearest first, each compared with Braunschweig & the Harz (west).
Southern MunteniaRomania · about 880 miles
Excellent weather (9.6): 8°F warmer afternoons, 5 fewer rain days, cheaper
Romania's Black Sea coast & Danube DeltaRomania · about 930 miles
Excellent weather (9.6): 8°F warmer afternoons, 6 fewer rain days, cheaper
Castile and LeónSpain · about 1000 miles
Excellent weather (9.8): 9°F warmer afternoons, 4 fewer rain days, cheaper
Hotel stays are steady all year here: this month is 93% of the busiest and 15% above average. That counts overnight stays, not how busy the sights are. That means about 20,000 overnight visitors on a typical September night across the region, 86% of them from Germany itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 3,900 more: 19 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 78 |
| How our weather was checked | 11 open weather stations in this region, January and July: afternoon highs typically within 1°F (0.2°C), night lows within 1°F (0.4°C). |
| Tourist nights per 1,000 residents per day | 13 |
| Busiest month here | August · 14 |
| Visitors as share of people present | 1.3% |
| Rank among Europe's regions this month | 40th percentile |
| Domestic share of nights | 86% |
| Platform rental nights per 100 counted nights | 19 |
| Visitor share if every platform night were extra | 1.5% |
| National hotel-price season | Germany historical 2024–2025 index: About usual (+4% vs its average month). Not a local room quote. |
| Population used | 1.6 million |
| Statistical region | DE91 · Braunschweig |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national. Full method · this region's data.