We felt the first strains of autumn chill this week, and it's making us totally miss summer. Fortunately, we've found quite a few deals for fall that offer big savings on beachy getaways. So don't put your flip-flops and floppy hat in storage quite yet; you can still find your spot in the sun and save some dough doing it.
First up: Florida, where we uncovered resorts on both coasts with cheap packages and daily room rates.
In ritzy-yet-residential Jupiter, the Jupiter Beach Resort & Spa's "Fun in the Sun" package offers 30 percent off best available rates, two tickets to the historical Jupiter Lighthouse, and daily breakfast from just $154 per night. Use promo code "FUN."
In Ft. Lauderdale, the Marriott Harbor Beach Resort & Spa has rates from $203 per night on stays of seven days or longer. The TripAdvisor favorite is the place to flop on the unspoiled sands of a private beach (minus the spring-break crowds). Use promo code "LTS."
On the other side of the state, the Resort at Longboat Key Club in Sarasota is good for a family-friendly getaway with its "OPAL Family" package (if you don't mind taking the kids out of class for a long weekend). Rates from $234 per night include free breakfast for the little ones and a $75 resort credit for you (two words: spa day). Use promo code "OPALFAM."
Insanely blue waters and relatively crowd-free beaches await in Destin at the Hilton Sandestin Beach Golf Resort & Spa. With $75 in daily savings, visitors will get daily breakfast for two, Wi-Fi access, and daily beach setup. This "Sunset to Summer" package is a great way to explore a town that is usually crawling with tourists. Rates start at just $301 per night.
If you're thinking of going a little farther, the Caribbean offers plenty of deals and pleasantly hot temps in the fall. (Pro tip: It is hurricane season and you may want to invest in insurance in case of bad weather.)
JetBlue Vacations is offering up to 50 percent off stays at the all-inclusive St. James Club Morgan Bay in St. Lucia through December 20. Take to the resort's pristine beaches, pools, and kids' club, or have a relaxed meal at one of the many on-site restaurants included in the rate. (Note: Some dates require a minimum stay.)
At the ultra-luxurious CuisinArt Golf Resort & Spa in Anguilla, the "Suite Escapes" promotion includes a beachfront junior suite, daily breakfast, and Wi-Fi access though December 19. Rates at this five-star resort typically start at $600 per night, but this deal means rates drop to $420 (an amazing price, considering the ooh-la-la locale).
In Curacao, the Santa Barbara Beach & Golf Resort is an AAA Four Diamond property with plenty to recommend it, from pretty beaches to protected natural lands for exploring. Swim and snorkel to your heart's content with an all-inclusive package: Rates from just $233 per night include three daily meals and unlimited drinks (including alcohol). We don't often see prices this low, especially at a resort that earns four and a half bubbles from TripAdvisor reviewers.
St. Kitts is another great option for mellow off-peak beaches. The St. Kitts Marriott Resort & The Royal Beach Casino offers big savings, with stays of four nights netting a fifth, sixth, and seventh night free with the "Super Sand Dollar Deal," valid through December 20. Use promo code "ZJL." 
Another Marriott property, the JW Marriott Cancun Resort & Spa, offers a similarly money-saving package, plus an easy-to-reach destination for most East Coast residents. This family-friendly deal includes daily breakfast for two adults and two kids plus free Wi-Fi for just $207 per night.
Expedia is offering flight-inclusive packages to Mexico with serious savings as well: Hard Rock Hotel properties in Punta Cana, Puerto Vallarta, Riviera Maya, and Cancun have at least 35 percent off rack rates, starting at $438 per person (a good deal for upscale all-inclusives with flight included).
If you're looking ahead to Thanksgiving and thinking less turkey and more beachy, the Beach House and Blue Haven Resort on Turks and Caicos has a package deal for those looking to flee freezing temps. Three nights' accommodations, a three-course Thanksgiving dinner, daily breakfast, a $50 Black Friday shopping credit, and free shuttle service are included for rates from just $1,453 per suite (about $730 per person).
Photos: Santa Barbara Beach & Golf Resort (top); Hard Rock Hotel Cancun (bottom right)