Rotterdam shows a fairly mild monthly swing: sample heat runs higher around Sep–Nov, softer around Jul–Aug, Dec (monthly sample means about 1.1–1.5). Tulip season, King’s Day and autumn conferences are common peaks. Index ≈ each hotel’s off-peak baseline—not a live city-wide rate.
January 2026
1 public holidaysFebruary 2026
No public holidays this month1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
March 2026
No public holidays this month1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
April 2026
4 public holidaysMay 2026
4 public holidaysJune 2026
No public holidays this month1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
July 2026
No public holidays this month1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
271.3
281.3
291.3
30
31
August 2026
No public holidays this month11.5
2
3
4
5
6
7
81.4
9
10
11
12
13
141.3
151.5
16
17
18
19
20
211.4
221.6
23
241.3
25
26
27
281.4
291.7
30
31
September 2026
No public holidays this month11.4
21.4
31.3
41.4
51.6
6
71.4
81.6
9
101.6
111.6
121.8
13
141.4
151.6
161.6
171.5
181.5
191.5
20
211.7
223.2
232.4
241.5
251.4
261.5
27
281.4
291.7
301.8
October 2026
No public holidays this month11.7
21.6
32.0
41.8
52.5
61.7
71.4
81.5
91.4
101.4
11
121.3
131.5
141.5
151.5
161.4
171.4
18
191.4
201.5
211.9
221.6
231.6
241.6
25
261.3
271.5
281.5
291.3
301.3
311.4
November 2026
No public holidays this month1
2
31.4
42.1
51.7
61.5
71.3
8
91.4
101.6
111.3
12
13
141.4
15
161.3
171.5
181.5
191.3
201.3
211.3
22
23
241.3
25
26
27
281.4
29
301.3
December 2026
2 public holidaysIndex ≈ 1.0 is each hotel’s sample off-peak baseline; shown when >1.2. Sampled reference, not live city-wide rates