September
Wk 36–38
Best balance of weather comfort and space: crowd level around 44 out of 100, weather comfort near 70.
- Crowd level
- 43–46
- Comfort
- 67–73
Photo by Denise Jans on Unsplash
Netherlands
Best time to visit Groningen
When is it busiest here, and when is it quietest? The answer runs week by week through the region's own year, from official EU overnight-stay statistics.
Busiest week
AugustCrowd level 100
Wk 32 · 74,575 overnight stays
Quietest weeks
JanuaryCrowd level 0
Wk 2–4 · measured against the region's own year, not against other regions
Sweet spot
SeptemberCrowd level 43–46
Wk 36–38 · a good balance of weather comfort and crowd level
Warmest month
20 °CComfort 77
August · around 74 mm of rain in the month
Crowding Index 1.1 · As of 06/08/2026 · Crowding score 0–100, season-relative
Groningen (Netherlands) is quietest in January: across Wk 2–4 the crowd level runs from 0 out of 100. The busiest single week falls in August (Wk 32), at 100 out of 100 with roughly 74,575 overnight stays. Calculated from open official data; the values are modelled, not counted.
When is Groningen busy, when is it quiet?
Click a week. The panel on the right explains why it is busy or quiet.
Weather profile
Weather comfort is an absolute scale (0 = poor, 100 = ideal) and a second axis next to the season-relative crowd level.
JanuaryØ 2
FebruaryØ 5
MarchØ 12
AprilØ 29
MayØ 47
JuneØ 52
JulyØ 68
AugustØ 90
SeptemberØ 44
OctoberØ 33
NovemberØ 13
DecemberØ 8
Colour = season-relative crowd levelBar = weather comfort (Sun & warmth), absolute 0–100
Why this week?
September · Wk 36
Crowd level46/100 · moderate
quietbusy
Weather comfort38/100 · Sun & warmth
+19 % versus the region's annual average.
- Contributing months
- August (3 %) · September (97 %)
- Overnight stays/week
- 43,653
- School-holiday pressure (source markets)
- 6 % of source markets on school holidays · -1 % crowding from holidays
- Main source markets
- Netherlands (65 %) · Germany (20 %) · Belgium (5 %) · 94% of guests modelled
- Region range
- 17,440–74,575 (avg 36,592)
- Base years
- 2022, 2023, 2024 (excluding 2020, 2021)
v1: Crowd-Score aus der Eurostat-Basisschicht (Übernachtungen), moduliert vom Schulferien-Druck der Quellmärkte, region-spezifisch gewichtet mit dem Quellland-Mix. Season-relativ zur Region. Event-Schichten folgen.
Plan your trip
Pre-filled with the next date in week 36.
DestinationGroningen
Travel datesPick a week in the calendar
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Photos: reisetopia · Dino Reichmuth on Unsplash
The travel year in Groningen, month by month
The year as a table to read and to cite: crowd level for every month, plus weather comfort and temperature from the climate normals.
| Month | Crowd level0–100, season-relative | Weather comfort0–100, profile “mild” | Avg temperature |
|---|---|---|---|
| January | 2 | 20 | 4 °C |
| February | 5 | 23 | 5 °C |
| March | 12 | 32 | 7 °C |
| April | 29 | 47 | 11 °C |
| May | 47 | 64 | 15 °C |
| June | 52 | 74 | 18 °C |
| July | 68 | 72 | 19 °C |
| August | 90 | 77 | 20 °C |
| September | 44 | 68 | 17 °C |
| October | 33 | 52 | 13 °C |
| November | 13 | 32 | 8 °C |
| December | 8 | 23 | 5 °C |
The crowd level is season-relative: 100 is the annual peak of Groningen itself, not the busiest destination in Europe. The figures say when it is quiet here — not where it is quieter than elsewhere.
Weather comfort 0–100 from the climate normals, profile “mild” – the same profile as the recommendation above, not the selection in the calendar. A “–” means the data for that month is missing.
Index 1.1 · As of 06/08/2026
The windows worth catching
Three windows from the model, weighing crowd level against weather comfort.
March
Wk 11–13
A quieter choice in the other half of the year: crowd level around 12, weather comfort near 35.
- Crowd level
- 11–14
- Comfort
- 32–38
August
Wk 31–33
The region's peak: crowd level around 97 out of 100. Only if the dates are fixed.
- Crowd level
- 94–100
- Comfort
- 75–79
Groningen compared with Europe
How dense it gets here measured against Europe — on the one figure that lets two destinations be compared.
- Crowd density in Groningen
- 15.23
- European median
- 11.80
overnight stays per km² and week
overnight stays per km² and week
Furthest from the median: January, at 1.5× the value. Closest to the median: July, at 1.1× the value.
Mean across 12 months, weighted by their weeks. This density compares destinations with each other. The crowd level in the table above compares Groningen with itself. The two figures are never combined.
Index 1.1 · As of 06/08/2026
Climate through the year
Average temperature with day/night range and precipitation across the twelve months.
- Avg temperature
- Day/night range
- Precipitation
| Month | Avg temperature (°C) | Day avg (°C) | Night avg (°C) | Precipitation (mm) |
|---|---|---|---|---|
| Jan | 4 | 4 | 4 | 77 |
| Feb | 4 | 5 | 4 | 56 |
| Mar | 6 | 7 | 5 | 49 |
| Apr | 9 | 11 | 7 | 73 |
| May | 13 | 15 | 11 | 69 |
| Jun | 17 | 18 | 15 | 77 |
| Jul | 18 | 19 | 16 | 118 |
| Aug | 18 | 20 | 17 | 74 |
| Sep | 15 | 17 | 14 | 86 |
| Oct | 12 | 13 | 11 | 105 |
| Nov | 7 | 8 | 7 | 89 |
| Dec | 5 | 5 | 5 | 73 |
The band shows mean daytime to nighttime temperature. Precipitation shown as monthly total (mm). Typical monthly value (climate normal), not a forecast. Generated using Copernicus Climate Change Service information 2025.
How sunny?
Average daily solar energy across the twelve months. The higher the value, the sunnier.
3.1 kWh/m²/Tag
Annual average
Jun
Sunniest month
| Month | Solar irradiance (kWh/m²/day) |
|---|---|
| Jan | 0.7 |
| Feb | 1.4 |
| Mar | 2.8 |
| Apr | 4.5 |
| May | 5.6 |
| Jun | 5.7 |
| Jul | 5.4 |
| Aug | 4.7 |
| Sep | 3.2 |
| Oct | 1.7 |
| Nov | 0.8 |
| Dec | 0.5 |
Mean daily solar irradiance in kWh/m²/day (≈ peak-sun-hours equivalent). Typical monthly value (climate normal), not a forecast. Generated using Copernicus Climate Change Service information 2025.
Frequently asked questions about the best time to visit Groningen
Short answers on timing, weather and getting there, all from the data on this page.
When is the best time to visit Groningen?
- The best time to visit Groningen is September (Wk 36–38): in this window the crowd level is low at around 44 out of 100 and weather comfort is good at about 70 out of 100.
When is Groningen quietest?
- January (Wk 2–4) is the quietest time in Groningen. Crowd levels there sit at 0 out of 100, the lowest across the year.
When is Groningen busiest?
- Groningen is busiest in August (Wk 32) with around 74,575 overnight stays in the peak week.
What is the weather like in Groningen and when is it warmest?
- It is warmest in Groningen in August with an average of 20 °C and around 74 mm of rain in the month.
All figures are approximations derived from open data (crowd level from Eurostat overnight stays, climate from Copernicus/ERA5-Land), not measurements.
Quiet travel windows across Europe, once a month
The Crowd Report names the emptiest weeks of the coming months — for every region, not just this one. Free, unsubscribe any time.
Back to the map
v1 approximation, calculated from Eurostat overnight stays. Day tourism and cruises (Venice, Dubrovnik …) are still missing, so we show these destinations as quieter than they are. The crowd score is a model-based forecast, not a measurement.