Monthly Calendar

Accessibility settings

Text size 100%

Press TAB to move forward, Shift + TAB to go back and Esc to close.

Accessibility statement
Current MonthToday
2025 Aug

September 2026

Sao Tome and Principe
Oct 2027
MonTueWedThuFriSatSun
31
1
2
3
4
5
6
Armed Forces Day
7
Armed Forces Day (observed)
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Agricultural Reform Day
1
2
3
4

September 2026 Holidays for Sao Tome and Principe

  • Armed Forces Day (Dia das Forças Armadas)
  • Armed Forces Day (observed) (Dia das Forças Armadas (observado))
  • Agricultural Reform Day (Dia da Reforma Agrária)

Public holidays in Sao Tome and Principe in September 2026

There are 3 public holidays in Sao Tome and Principe in September 2026:

  • Armed Forces Day (Dia das Forças Armadas) – Sunday, September 6, 2026
  • Armed Forces Day (observed) (Dia das Forças Armadas (observado)) – Monday, September 7, 2026
  • Agricultural Reform Day (Dia da Reforma Agrária) – Wednesday, September 30, 2026

Next public holiday in Sao Tome and Principe: São Tomé Day on Monday, December 21, 2026. Previous public holiday: Independence Day (observed) on Monday, July 13, 2026.

September 2026 at a glance

  • Number of days in September 2026: 30
  • Weekdays (Monday to Friday): 22
  • Weekend days (Saturday and Sunday): 8
  • Week numbers: 36–40
  • September 2026 starts on a Tuesday and ends on a Wednesday.
  • September 2026 has 4 Mondays, 5 Tuesdays, 5 Wednesdays, 4 Thursdays, 4 Fridays, 4 Saturdays, and 4 Sundays.
  • Quarter 3 of 2026: days 244–273 of the year.
  • The days of September 2026 fall on the same weekdays as in September 2020 and September 2037.
  • Public holidays in Sao Tome and Principe: 3
  • Weekdays (Monday to Friday) without public holidays in Sao Tome and Principe: 20

More calendars

Holidays in September 2026 in nearby countries