Mortgage rates cross 7%: the late-2026 playbook for San Diego investors.
The 30-year fixed averaged 7.03% for the week ending September 24, 2026, the first print above 7% since January 2025. Here is the deal math, the market impact, and what to do next.
Average 30-year fixed rate, week ending September 24, 2026
Freddie Mac Primary Mortgage Market Survey. The first weekly print at or above 7% since January 2025, after five straight weekly increases.
Higher monthly principal and interest versus a year ago
On an $850,000 mortgage, the monthly payment rises from about $5,261 at 6.30% (September 2025) to about $5,672 at 7.03%.
10-year Treasury yield on September 23, 2026
The highest since July 2007. Mortgage rates track the 10-year, which is why the Fed’s September 16 hike repriced loans so fast.
Loan a $6,000 monthly payment supports at 7.03%
Down from about $924K at 6.76% on September 10 and about $969K a year ago. Same payment, roughly $25K less loan in three weeks.
Mortgage rates have crossed 7% for the first time since January 2025, and the move rewrites deal math for every San Diego investor who borrows, plans to borrow, or hopes to sell to someone who does.
The 30-year fixed averaged 7.03% for the week ending September 24, 2026, per Freddie Mac’s Primary Mortgage Market Survey: the first weekly reading at or above 7% since January 2025, after five straight weekly increases. The trigger was the September 16 FOMC hike to a 3.75%–4.00% target range, the first increase since July 2023, amplified by a 10-year Treasury that reached 5.104% on September 23, its highest since July 2007.
For San Diego investors, the practical translation is in the numbers: about $411 more per month in principal and interest on an $850,000 loan than a year ago, roughly $25,000 less purchase power in three weeks, and a market where cash and low-leverage buyers increasingly set the pace.
San Diego’s August data still looks like a seller’s market, with the county median at $961,781, up 5.7% year over year, and over a third of sales closing above asking. But rates north of 7% are rewriting who can afford to compete, splitting the market into an expensive detached track and a far more reachable attached track.
This guide covers how the move happened, what the higher-rate math does to payments and purchase power, which San Diego submarkets hold up best, a playbook by investor type, the risks to respect, and a checklist to run before your next offer. If you are buying, selling, or holding San Diego real estate, this is the rate environment you are operating in for the rest of 2026.
Five weeks from 6.76% to 7.03%.
Rates did not drift to 7%; they jumped. The path from the fall outlook’s 6.76% baseline to the September 24 print is a sequence of distinct events, each leg reinforcing the next.
The 30-year fixed averages 6.76% per Freddie Mac, the baseline behind the fall market outlook. A year earlier it was 6.30%.
The FOMC raises the federal funds target range to 3.75%–4.00%, the first hike since July 2023. The September dot plot signals at least one more increase.
The 30-year jumps to 6.95% in one week, its highest reading in nearly two years. The MBA survey sits near 6.97%.
The 10-year Treasury reaches 5.104%, its highest level since July 2007, setting the rate for mortgages and investor loans.
Freddie Mac prints 7.03%, the first weekly average at or above 7% since January 2025. Five straight weekly increases.
Rate data per Freddie Mac Primary Mortgage Market Survey, September 2026. FOMC decision and Treasury data as reported September 23, 2026.
What 7% does to the monthly payment.
Rates matter through payments. On a typical San Diego investment loan of $850,000, the monthly principal-and-interest cost at 7.03% is $5,672, versus $5,519 at the September 10 reading of 6.76% and $5,261 a year ago at 6.30%.
A buyer budgeted for $6,000 per month in principal and interest could finance about $924,000 at 6.76% on September 10 and only about $899,000 at 7.03% today, a loss of roughly $25,000 in loan amount in three weeks. Versus a year ago at 6.30%, the same payment supported about $969,000, so the year-over-year gap is about $70,000. In a county where the August median was $961,781, that difference can push a target purchase out of reach or force an attached-home solution.
A sellers’ market with fewer qualified buyers.
Higher rates have not yet cooled San Diego’s headline numbers, but they are changing who can buy, what they can afford, and which submarkets move. Five signals frame the picture.
Redfin’s August 2026 county median of $961,781 is up 5.7% year over year, and over a third of sales closed above asking. The rate shock has not inverted the price trend yet; it is compressing who can compete.
County listing inventory fell about 5.6% year over year in August, and the median home sold in about 28 days. Owners locked into low rates stay put, so new listings remain scarce despite higher rates.
Detached medians run near $1.1M while attached medians sit around $665K–$670K per SDAR/MLS data current as of September 5, 2026. At 7%, the attached track becomes the realistic entry point for rate-sensitive buyers.
Zillow’s city-level median near $1.01M is down about 2.3% year over year even as the county median rose. Submarket selection now matters more than the countywide headline.
Higher rates sideline financed buyers and lift the share of all-cash and high-equity offers, which now set the pace in competitive multiple-offer situations.
Market data per Redfin August 2026, SDAR/MLS data current as of September 5, 2026, and Zillow city-level valuations. All mortgage rates reflect September 2026 Freddie Mac surveys.
What to do differently at 7%.
The right response depends on where you sit. A first-time buyer, a cash investor, and a value-add operator face the same rate and three completely different decisions.
The payment is the price. Re-underwrite at 7.03% and lean into attached product or house hacking with FHA-style 3.5% down. High rates raise the value of shared-wall housing and owner-occupied financing programs.
Model debt service at 7% plus a buffer, not at August quotes. Cash flow works best in inland submarkets, and DSCR pricing has been drifting up with the 10-year. Underwrite to a 1.25x cushion or higher.
Your negotiating position just improved as rate-sensitive competition fades. Weigh whether a mortgage at 7% still makes sense versus deploying cash for better yield elsewhere.
Price to the payment math: a buyer at 7% can afford about $25,000 less than in early September. Days on market stretch on the fringes, and the attached track outperforms. 1031 timing and holding through volatility deserve a hard look.
Refinance exits are harder at 7%. Stress-test the post-rehab rent needed to hit your target debt service ratio, budget longer rate locks, and confirm bridge exit math still works if the permanent market stays elevated.
High rates lock owners in place, which supports occupancy. Prioritize tenant retention to avoid turnover costs, refresh units between tenancies, and check that rent levels keep pace with the county’s still-positive appreciation.
Rates are a calendar event now.
The September 16 decision did not close the rate story; it opened the next chapter. Three forces will set the path into 2027.
FOMC meetings on October 28 and December 9 remain live. The September dot plot signals at least one more quarter-point hike, and a December move would keep mortgage rates pinned near current levels into 2027.
The 10-year Treasury at 5.104% is the engine behind mortgage rates. Until that yield stabilizes, mortgage spreads and rate locks stay wide, and every financing decision should carry a buffer.
If the Fed cuts in the second half of 2027, forecasts point back toward the mid-5s. That is a tailwind for patient buyers, but underwriting today at a hoped-for 2027 rate is how deals get overleveraged.
Six moves before your next offer.
None of these is exotic; all of them protect you from underwriting a deal with August’s numbers in a 7% market.
Re-underwrite every deal at 7% or higher. If a property only pencils at the 6.5% it was quoted in August, it does not work.
Quote payments, not rates. A $411 monthly increase since last year has already moved the market; frame offers and counteroffers in monthly cost.
Extend lock windows before they widen further. A 45–60 day lock on a new application now protects against another print near 7.2%.
Stress-test financing-dependent exits. DSCR, bridge, and construction money all follow the 10-year; confirm your numbers still close at 100 basis points above today.
Watch the FOMC calendar. October 28 and December 9 are live meetings; reposition financing decisions around them.
Lean into defensible submarkets. In the two-track market, attached housing and inland cash-flow areas hold up better than costlier coastal product when money gets tight.
Four risks to respect at 7%.
Detached versus attached, city versus county: rate shock hits the high-price track first. Decisions made on the countywide median will misprice individual submarkets.
The lock-in effect suppresses listings, keeping the seller’s market alive even as affordability shrinks. Well-priced homes keep selling quickly while overpriced ones linger.
DSCR, bridge, and private-money rates follow the 10-year with a lag. Deals underwritten in August can close unprofitable in October; recheck quotes before locking.
With rates above 7%, the minority forecast that called for a San Diego decline in 2027 has more support. Underwrite to cash flow and holding periods, not to exit appreciation.
The 7% market, answered.
What is the 30-year fixed mortgage rate right now?
Freddie Mac’s Primary Mortgage Market Survey put the average 30-year fixed rate at 7.03% for the week ending September 24, 2026, up from 6.95% the prior week and 6.76% the week of September 10. The 15-year averaged 6.42%. A year earlier the 30-year averaged 6.30%.
When was the last time mortgage rates were above 7%?
The week ending January 16, 2025, when Freddie Mac put the 30-year at 7.04%. It fell below 7% the following week and stayed below for more than 20 months until the September 24, 2026 print of 7.03%.
Why did mortgage rates jump so quickly in September 2026?
The FOMC raised the federal funds target range to 3.75%–4.00% on September 16, the first hike since July 2023, and the September dot plot signaled at least one more increase. Mortgage rates move with the 10-year Treasury, which reached 5.104% on September 23, the highest since July 2007. Five straight weekly increases took the 30-year from 6.76% to 7.03%.
How much purchase power is lost when the rate moves from 6.76% to 7.03%?
On the same $6,000 monthly principal-and-interest payment, a buyer could finance about $924,000 at 6.76% and about $899,000 at 7.03%, a loss of roughly $25,000 in loan amount over three weeks. Versus a year ago at 6.30%, the same payment supported about $969,000, so the year-over-year loss is about $70,000.
Will mortgage rates go higher before the end of 2026?
The September dot plot signals at least one more quarter-point Fed hike, and the remaining 2026 FOMC meetings are October 28 and December 9. If the 10-year Treasury holds above 5%, mortgage rates are likely to stay at or above current levels into year-end, with a possible December bump. Forecasts that call for mid-5% mortgages depend on 2027 cuts.
Should I still buy a rental property in San Diego at 7% interest?
Underwriting, not the rate alone, decides. Inland cash-flow submarkets can still clear a 1.25x debt service ratio at 7% on financed deals, and all-cash buyers still find 5%–6% caps in workforce areas. What no longer works is the marginal deal that only penciled at 6.5%; those are the prices getting negotiated down. Buy the property that cash-flows at 7.03% today and treat future rate relief as upside.
What should San Diego investors do right now?
Re-underwrite at 7% with a buffer, extend rate locks, stress-test financing-dependent exits, and watch the October 28 and December 9 FOMC meetings. Cash and low-leverage buyers hold the strongest negotiating position; financed buyers should target attached product and owner-occupied programs. Sellers should price to the payment math and plan around the two-track market.
Let’s re-underwrite your strategy for a 7% market.
Whether you are buying your first rental, repositioning a portfolio, or navigating the two-track market, the San Diego Investor Guide team can model your numbers at current rates and point you to investor-friendly lenders.