NFL
  • Home
  • NFL

Seattle Seahawks at San Francisco 49ers NFL Week 18 Tips & Predictions - 49ERS Tipped to Clinch NFC

ryan-tucker
Editor
Fact Checked by Jeremy Darke
Last updated: Tue 30 Dec 2025 13:07

In a pivotal NFL Week 18 clash, the San Francisco 49ers face the Seattle Seahawks to determine the NFC's top seed. The 49ers, despite early season injuries, are poised to win bolstered by Brock Purdy's exceptional form. However, Seattle's strong offense and recent performances, including a decisive win over the Panthers, keep them competitive. Defensive vulnerabilities remain a concern for both teams, though, with experts predicting a 49ers victory on the moneyline and a game total to remain under the projected score. Purdy is expected to surpass 251.5 passing yards.

Ryan Tucker 30 Dec 2025
Share this article
Or copy link
  • Seattle Seahawks at San Francisco 49ers Expert NFL Tips for Week 18
  • Kick Off is at 12:00 PM AEDT at Levi's Stadium
  • 49ers and Seahawks battle to clinch the NFC's top seed.
  • San Francisco expected to win, with game total going under.
  • Brock Purdy predicted to exceed 251.5 passing yards.
Expired
Seattle Seahawks at San Francisco 49ers NFL Week 18 Tips & Predictions
Seattle Seahawks at San Francisco 49ers NFL Week 18 Tips & Predictions

Seattle Seahawks at San Francisco 49ers NFL Week 18 Tips & Predictions


An all time divisional matchup to decide the Number 1 Seed in the NFC. San Francisco 49ers are tipped to take the win and cap a fairytale season that was almost derailed by injuries.

These teams are both very good. Especially on offence. Brock Purdy is absolutely humming along right now and will have a load of confidence from his 5 TD effort against the Bears. Even with George Kittle out, the other receivers stepped up to the plate and the 49ers attacked the middle of the field even on late downs, converting 7 of 10 3rd downs and 1 of 1 4th downs.

Their weakness is their defence and Seattle will definitely look to exploit the 49ers secondary that has allowed 254 and 330 pass yards to their opponents in consecutive weeks. Sam Darnold is having a career year in completion percentage but did struggle in the week 1 matchup against this very team.

Divisional matchups are always close, San Fran have won 4 of the last 5 with the last two games being decided by 3 points. The recency bias is also inflating the game total so the Under trend that these teams have with eachother is a good shout. 

Bank on the 49ers offence to get things done when it matters in front of what is expected to be one of the loudest and most boisterous crowds of the season. Take them on the moneyline and the Game Total to go Under. Take Purdy to continue to fling the ball around going over 251.5 Pass Yards and Zach Charbonnet to score for the Seahawks. 

  • San Francisco won the Week 1 Matchup and has taken 7 of the last 8 games. 
  • The Under has hit in 2 straight games between these teams.
  • Brock Purdy had 277 yards on 26 completions against Seattle in week 1 and has gone Over this line in 3 straight games.
  • Zach Charbonnet has scored a TD in 2 straight games and was the only Seahawks player to score a TD in their Week 1 matchup.

Head to Head Record


All Time Record


Seattle Seahawks lead all-time series 31-24.

Most Recent Matchup


DateResult
Sep 7, 2025
SFO 17 @ SEA 13

Statistical Rankings


StatSEASFO
Points Scored/Game29.4 (2nd)27.1 (8th)
Points Allowed/Game18.1 (2nd)22.4 (13th)
Pass Yds/Game231 (8th)252 (4th)
Rush Yds/Game119 (16th)110 (22nd)
Def. Pass Yds/Game198 (12th)235 (25th)
Def. Rush Yds/Game94 (3rd)103 (6th)

Seattle Seahawks Form


Seattle are in the box seat to secure the 1 seed in the NFC following a solid 27-10 victory over the Carolina Panthers last weekend. 

The win took their record to 13-3 and puts Sam Darnold in an elite category of QB’s with back to back 13 win seasons which includes only Tom Brady, Peyton Manning, Aaron Rodgers and Brett Favre. 

Despite the overwhelming victory, it wasn’t all smooth sailing for Darnold who was sacked 3 times and completed just 18 of 27 passes for 147 yards with 1 TD and 1 INT. The damage was done on the ground, Zach Charbonnet and Kenneth Walker amassing 161 yards on 33 carries.


eam Table
TeamRecordATSO/UAwayHome
Seattle logo SEA13-3-011-5-09-7-07-1-06-2-0

San Francisco 49ers Form


The 49ers took another win last weekend, keeping their hopes of the 1 seed alive for this upcoming battle. Their 42-38 victory over Chicago was a rollercoaster to say the least. 

Brock Purdy delivered 24 completions on 33 pass attempts for 303 yards, 3 TD’s with an early pick 6 just setting the tone of the game. Despite the pick he still finished with a 118.6 rate while also running in 2 TD’s himself.

The offence was firing but the defence was scary and not in a good way. Giving up 38 points, no matter what the opposition is not a great sign just weeks from playoffs. Chicago were able to gather 110 yards off 22 runs on the ground and 330 yards on 25-42 passing through the air.


eam Table
TeamRecordATSO/UAwayHome
San Francisco logo SF12-4-010-6-010-5-17-2-05-2-0

Seattle Seahawks vs San Francisco 49ers Frequently Asked Questions

What time does Seattle Seahawks vs San Francisco 49ers start?

Kickoff between Seattle Seahawks vs San Francisco 49ers is at 12:00 PM AEDT, Sunday

What channel is Seattle Seahawks vs San Francisco 49ers on?

You can watch Seattle Seahawks vs San Francisco 49ers on DAZN

Verdict

Take the 49ers on the moneyline and the Game Total to go Under. Take Purdy to continue to fling the ball around going over 251.5 Pass Yards and Zach Charbonnet to score for the Seahawks.
Best Bet1: San Francisco 49ers Moneyline $2.00 at Elitebet - 2 Units
Best Bet2: Under 49.5 Game Total $1.90 at Pandabet - 2 Units
Best Bet3: B Purdy over 251.5 Passing Yards $1.90 at Playup - 1 Unit
Best Bet4: Z Charbonnet Anytime Touchdown $2.15 at dabble - 1 Unit
San Francisco 49ers
Moneyline
$2.00 - 2 Units
Lightning fast betting
Join with code BETSAU

18+. T&Cs apply

Bet at Elitebet
Under 49.5
Game Total
$1.90 - 2 Units
Pandabet
It's Black & White

The Pandabet.com.au code is BETSAUS. 18+. T&Cs apply.

Bet at Pandabet
B Purdy over 251.5
Passing Yards
$1.90 - 1 Unit
Use Easyform
The Ultimate Form Guide

18+ only. Gamble Responsibly. T&Cs apply

Bet at Playup
Z Charbonnet
Anytime Touchdown
$2.15 - 1 Unit
Download the dabble app
with referral code BETSAU

Download the dabble app, enter referral code BETSAU to enjoy Dabble, the betting app with a difference! Bet as normal with & also be part of Australia's betting community where you can follow punters and sports stars, copy their bets, have banter with your mates & watch Sky Racing channels. 18+. T&Cs apply. What are you prepared to lose today? Set a deposit limit.

Bet at dabble

Top Betting Sites

Betting offers

Upcoming Events

Load More
Betting Slip | 04 Jan 2026

Seattle Seahawks at San Francisco 49ers