The Best Time to Send Emails for Higher Open Rates in 2025: A Data-Backed Guide

In the ever-evolving world of digital marketing, timing can make or break the success of your email campaigns. As we step into 2025, marketers are continually seeking ways to optimize their email strategies to ensure better engagement, higher open rates, and increased ROI. One critical question remains at the heart of this optimization:

When is the best time to send emails in 2025?

To answer this, we’ve done the deep research, analyzed real-world data, and synthesized best practices from leading platforms and experts to bring you a comprehensive guide.

Table of Contents

Why Timing Matters in Email Marketing

Email marketing remains one of the most effective channels to reach your audience, with ROI averaging $36 for every $1 spent (DMA, 2024). However, even the best-crafted email can fall flat if it reaches the inbox at the wrong time. The goal is to hit the inbox when your recipient is most likely to:

Check their email
Be mentally available
Have time to act on your content

This makes understanding the ideal timing crucial.

Key Factors That Influence Email Open Rates

Before jumping into specific times and days, let’s look at the variables that influence open rates:

Audience Behavior: B2B vs. B2C, professionals vs. consumers
Time Zones: Especially important for global or national audiences
Device Usage: Mobile vs. desktop
Email Frequency: Too frequent = fatigue; too rare = forgetfulness
Industry Type: E-commerce, SaaS, Education, etc.

Understanding your audience’s lifestyle and habits helps you determine the best delivery window.

Best Days to Send Emails in 2025 (Updated Data)

According to studies by HubSpot, Brevo (formerly Sendinblue), and Mailmodo in 2024-25:

Tuesday is the highest-performing day for open rates, especially in B2B segments.
Thursday follows closely, often yielding high click-through rates.
Wednesday is the safest middle ground and performs well across most industries.

Avoid:

Monday: People are catching up and often delete or ignore bulk emails.
Friday: Many users are winding down the week.
Saturday/Sunday: Engagement drops unless it’s a retail or leisure brand.

Best Times to Send Emails in 2025 (Backed by New Insights)

Morning Windows (8:00 AM – 10:00 AM):

Ideal for professionals checking emails before starting their workday.
Higher open rates for B2B, SaaS, consultants, and marketers.

Midday (12:00 PM – 2:00 PM):

Good for mobile-first audiences during lunch breaks.
Strong engagement for e-commerce and content newsletters.

Evening (4:00 PM – 6:00 PM):

Effective for product-based promotions and flash sales.
Works well for B2C and lifestyle audiences.

Late Evening (7:00 PM – 9:00 PM):

People often scroll through their inboxes before bedtime.
Ideal for entertainment, blogs, or leisure-focused emails.

Device-Specific Timing

In 2025, mobile opens account for over 72% of email engagement (Litmus 2025). That means:

Mobile-friendly design is a must.
Emails should be timed for mobile habits: early morning, lunch break, and after 8 PM.

If your audience is desktop-focused (e.g., B2B SaaS), stick to working hours: 8:30 AM to 5:30 PM.

Personalized Sending with Brevo

Brevo’s powerful Send Time Optimization (STO) feature uses AI and machine learning to analyze past recipient behavior. This means:

Each subscriber receives the email at their most likely open time
Open rates can improve by 30% or more
Great for automation and drip campaigns

Example: For a lead nurturing campaign, Brevo can automatically send emails at a subscriber’s personal engagement peak time (e.g., 8:37 AM).

Industry-Specific Email Timing Tips

Ecommerce:

Tuesday to Thursday
10 AM and 8 PM for promotions and sales

SaaS / B2B:

Tuesday or Wednesday
9 AM to 11 AM for newsletters, case studies

Education / Online Courses:

Sunday afternoon or Monday evening
High engagement for learning-oriented content

Freelancers / Creators:

Tuesday and Thursday
11 AM to 1 PM; 7 PM to 9 PM (when clients browse portfolios)

Tips to Maximize Open Rates (Beyond Timing)

Use Strong Subject Lines: Keep them short, benefit-driven, and personalized.
Segment Your Audience: Send relevant content to the right groups.
Avoid Spam Triggers: Don’t use all caps or too many emojis.
A/B Test Send Times: Even one-hour changes can affect results.
Clean Your List Regularly: Remove inactive users to boost deliverability.
Use Preheaders Wisely: Make them support your subject line.

Final Thoughts: So, What Is the Best Time?

While there’s no one-size-fits-all answer, the data shows that Tuesday at 10 AM remains a sweet spot in 2025 for most industries.

However, the real power lies in testing and personalization. Use tools like Brevo’s automation and AI features to send emails based on your subscriber’s unique behaviors.

By consistently monitoring performance, refining your segmentation, and optimizing your timing, you’ll ensure your emails don’t just land in the inbox—they get opened, read, and clicked.

Ready to Boost Your Open Rates?

Start a free Brevo account today and use automation to schedule your emails for maximum impact. Timing is everything—make sure yours is right.

Frequently Asked Questions (FAQs):

1. What is the best time of day to send marketing emails in 2025?

Answer:
The best time to send marketing emails in 2025 is between 9:00 AM and 11:00 AM (recipient’s local time). Data from Brevo and other platforms shows that this timeframe consistently delivers higher open and click-through rates, especially on weekdays.

2. Which day of the week has the highest email open rates in 2025?

Answer:
Tuesday and Thursday remain the top-performing days for email open rates. In particular, Tuesday mornings show strong engagement, making it the preferred day for most B2B and B2C marketers.

3. Should I send emails on weekends in 2025?

Answer:
Yes, but only if your audience is active during weekends (e.g., ecommerce, entertainment, or lifestyle). Sunday evenings around 7–9 PM often perform surprisingly well for retail promotions and newsletters. Always A/B test based on your specific audience behavior.

4. How can I determine the best send time for my own audience?

Answer:
Use your email platform’s analytics (like Brevo’s send time optimization feature) to track when your audience opens and clicks. You can also segment lists by time zone or past engagement and experiment with A/B testing to find the best results for each group.

5. Does time zone affect email open rates in 2025?

Answer:
Absolutely. With remote work and global audiences, sending emails based on the recipient’s local time zone is critical in 2025. Tools like Brevo and Mailchimp now offer time zone-based scheduling to help you reach inboxes when your audience is most active.