Marketing calendar

2026 marketing calendar: SEA & Japan edition

Discover key marketing dates you need to know in 2026

Marketing moves fast and with so many diverse cultures, holidays, and shopping festivals across the region, keeping track of it all is a full-time job. Let us help you simplify it. We’ve collated the essential dates and events across Southeast Asia and Japan into one handy marketing calendar. It’s the insight you need to plan effective, culturally relevant campaigns without the headache.

Key takeaways

  • Never miss a major regional festival or public holiday again, and connect with customers during the moments that matter most
  • See the whole year at a glance and map out your cross-border campaigns with confidence
  • Tap into key dates and holidays to keep your engagement high, even during slower months
Complete the form
This field is for validation purposes and should be left unchanged.

Other resources

  • Guide

    MarTech RFP guide

    Find your next marketing platform with this practical guide. Take what you need, leave what you don’t.

  • Guide

    The 2026 tactical marketing guide

    Curated by Dotdigital. Written by our favorite marketers.

  • Guide

    What marketing channel does your campaign deserve?

    Follow the flowchart to see which marketing channel fits your campaign and the engagement rate you can expect using our 2026 benchmarks.

  • Marketing personalization platform

    One-to-one marketing is simple with Dotdigital. Personalize every touchpoint. From inbox to checkout.

    Marketing personalization platform
    '