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30-Year Fixed Mortgage Refinance Interest Rates in San Diego, CA

Explore 30-year fixed mortgage refinance rates in San Diego, CA over time.

As of Sep 10, 2026
California Avg

6.964%6.96%

+0.15% · 1wk
National Avg

6.965%6.96%

+0.15% · 1wk

Timeframe

Daily refinance averages provided by the Mortgage Research Center.


Compare mortgage rates in San Diego, California

Showing results for: 30-Year Fixed refinance offers for Single Family or Townhome properties in CA, total loan amount of $228,000.

LenderAPR / RateMonthly Payment
Mortgage Rate Company

Rate data provided by RateUpdate.com. Displayed by Mortgage Research Center, NMLS #1907, Equal Housing Opportunity. Rates and fees are estimates and subject to change without notice. Payments do not include taxes and insurance premiums. Actual payments may be higher. Not all lenders participate in this marketplace. Loan availability and terms may vary by state and lender. Lender offers, including badges like “Lowest APR” or “Lowest Payment,” are based only on results displayed here and may not reflect the absolute lowest offer available in the market. Rate and product details


What refinancing looks like in San Diego at today's rates

The median home in San Diego costs about $751,800. Refinancing a typical balance of $601,440 (80% of that value) at today's average 30-year fixed rate in California of 6.96% works out to roughly $3,987/month in principal and interest, with $833,831 of total interest over the 30-year term.

Here is how the monthly payment and break-even point change if you wait for (or negotiate) a lower rate, assuming closing costs of $15,036 (2.5% of the loan):

RateMonthly P&IMonthly savingsBreak-even
6.96% (today)$3,987
6.71% (−0.25%)$3,887$100/mo151 months
6.46% (−0.50%)$3,787$200/mo76 months
6.21% (−0.75%)$3,689$298/mo51 months
5.96% (−1.00%)$3,592$395/mo39 months

Estimates use principal and interest only and today's average California rate; they exclude taxes, insurance, and rate differences from credit score or loan size.

Weighing the term itself? At today's California average 15-year fixed rate of 6.10%, the same $601,440 balance costs $5,108/month over 15 years — $1,121/month more than the 30-year fixed option, but with $515,801 less interest paid over the life of the loan.

What Rate Drop Makes 30-Year Refinancing Worth It in San Diego?

In San Diego's stable market with 0.9% appreciation, aim for at least 0.75-1% rate reduction when refinancing to a 30-year fixed. On a $601,440 loan, dropping from 7% to 6% saves $395/month. With typical $15,036 closing costs, your break-even is 38 months. Stay in your San Diego home at least 4 years to benefit fully. Smaller rate reductions still work if you have minimal closing costs or plan to stay long-term.

Should I Refinance to 30-Year to Lower My Payment in San Diego?

Refinancing to a 30-year fixed in San Diegomaximizes payment reduction if you're coming from a shorter term or higher rate. If you're already in a 30-year loan, refinancing saves $395/month per 1% rate drop on a $601,440balance. This helps if your financial situation changed, you need cash flow relief, or you want to improve debt-to-income ratio. However, extending your term resets the amortization-you'll pay more interest over the loan's life. Calculate total interest: 30 years at 6% costs $697k in interest on San Diego's median home.

How Do I Calculate My 30-Year Refi Break-Even in San Diego?

Break-even calculation: divide total closing costs by monthly savings. In San Diego, refinancing $601,440 costs approximately $15,036. If you save $395/month (7%→6%), break-even is 38 months. But consider total savings beyond break-even: stay 5 years and you net $8,664; stay 10 years and you net $32,364. Include San Diego's $476/month property tax (0.76%) in payment calculations, but remember it doesn't change when you refinance.

Is a No-Closing-Cost 30-Year Refi Better in San Diego?

No-closing-cost refinances roll $15,036 in fees into your loan or charge 0.25-0.5% higher rates. In San Diego, this makes sense if you're moving within 3-5 years or rates might drop further soon. Compare: upfront costs with 6% rate vs. no costs at 6.375%. The higher rate costs approximately $146/month more, so you "pay back" the $15,036 in 103 months. Stay longer than that, and upfront costs win.

When Is the Best Time for a 30-Year Refinance in San Diego?

Timing matters in San Diego's stable market. Refinance when: 1) Rates drop 0.75%+ below your current rate, 2) Your home appreciated enough to eliminate PMI (if you have it), or 3) Your financial situation improved (credit score up, income increased). Don't try timing the absolute bottom-with $751,800 median homes in San Diego, even a 0.5% improvement is meaningful. Monitor rates but act when savings justify costs. With 0.9% appreciation, your equity grows steadily, potentially qualifying you for better rates over time.

Build Long-Term Stability with 30-Year Refinancing in San Diego

California's premium prices mean your Loan-to-Value (LTV) ratio is highly scrutinized by banks.

Property Tax Tip for San Diego Homeowners

Your low tax rate keeps your escrow manageable. If you decide to do a cash-out refinance to remodel, Prop 13 protects your base home value, meaning your taxes won't reset to the new market value just because you refinanced!

California Refinance Programs for San Diego Residents

The California Housing Finance Agency (CalHFA) offers the CalHERO program. If you are a first responder, teacher, veteran, or nurse in San Diego, this program offers reduced interest rates and fees to honor those who serve the community.

How San Diego compares across California

Median home prices vary widely across California, which changes what a typical refinance costs. Here is the estimated monthly principal and interest on a median-priced home (80% loan-to-value) at today's average 30-year fixed rate of 6.96%:

CityMedian home priceEst. monthly P&Ivs. San Diego
San Diego$751,800$3,987
Salinas$658,000$3,489−$498/mo
Sacramento$619,200$3,284−$703/mo
Long Beach$521,800$2,767−$1,220/mo

Estimates use each city's median home price with the same statewide average rate; actual quotes vary by lender, credit profile, and loan size.