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 2027
1 public holidaysFebruary 2027
No public holidays this month1
21.3
3
4
5
61.4
7
81.3
9
101.3
111.3
12
131.4
14
15
16
17
18
191.3
201.6
21
22
231.3
24
251.3
262.0
272.3
28
March 2027
3 public holidays11.3
21.3
3
4
5
61.5
7
8
91.3
101.3
11
12
131.3
14
151.4
161.6
17
181.4
191.3
201.4
21
22
231.4
241.4
25
271.7
301.3
31
April 2027
1 public holidays11.4
21.6
31.8
4
51.5
61.6
71.6
81.5
91.6
102.3
111.8
121.7
132.2
141.8
151.8
161.7
171.7
181.3
191.4
201.7
211.7
221.5
231.5
241.7
25
261.3
281.4
291.4
301.5
May 2027
4 public holidays11.6
2
31.4
41.5
71.5
81.6
91.4
102.8
114.2
12
133.4
141.6
151.6
182.1
19
201.8
211.5
221.8
231.4
241.4
251.9
261.9
271.7
281.6
291.8
301.3
312.1
June 2027
No public holidays this month12.0
22.4
32.2
42.7
51.8
62.2
71.5
81.9
91.9
101.7
112.3
122.0
132.1
141.8
151.8
162.1
171.6
182.1
191.7
201.9
211.6
221.8
231.9
241.8
252.1
261.7
271.9
281.5
291.7
301.8
July 2027
No public holidays this month11.5
22.0
31.6
41.9
51.5
61.6
7
81.8
92.5
101.8
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
August 2027
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
September 2027
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
October 2027
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
November 2027
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
December 2027
2 public holidaysIndex ≈ 1.0 is each hotel’s sample off-peak baseline; shown when >1.2. Sampled reference, not live city-wide rates