Cowabunga! Parties persist despite July's soaring temperatures.

TODAY More than 1,900 people are expected at the national biennial meeting of The Links Inc., a predominantly black women's service organization, today through Friday at the Washington Hilton Hotel. There are receptions throughout the week including a gala Tuesday night given by the Eastern area chapters, a "Roaring Twenties Gala" Thursday night given by local chapters and the White Rose Inaugural Friday night in honor of the newly elected president of the organization. "Enhancing the Legacy and Fulfilling the Dream of the Black Family," the theme of this meeting, will be addressed at forums and by luncheon speakers. Secretary of Health and Human Services Louis W. Sullivan is the speaker at the Civic Luncheon Thursday, which honors Sullivan and NAACP Washington Director and Chief Lobbyist Althea T. L. Simmons and is open to the public. For information, call 842-8686 or the Links meeting office at the Washington Hilton.

Independent Living for the Handicapped Inc.'s garden party, "A Rose Is a Rose," will be held at the Potomac home of Hubert and Bettina Jessell. The Madrigal Singers, singer Ralph Montfort and strolling violinist Paul Nangeroni are the featured entertainers. Tickets are $25. Call 320-5877 or 797-9823.

JULY 4 United Cerebral Palsy of Washington & Northern Virginia Inc. has a Fireworks Cruise and a Moonlight Cruise aboard the Spirit of Washington. Tickets are $75 for the Fireworks Cruise and $15 for the Moonlight Cruise. Two live bands will entertain during both cruises. Call 269-1500.

The Asthma and Allergy Foundation of America has a party cruise aboard the Potomac Riverboat Co.'s Cherry Blossom Paddlewheeler from Alexandria. U.S. Surgeon General Antonia C. Novello is guest of honor at this benefit. Tickets are $100 (or $150 per couple). The evening includes cocktails and hors d'oeuvres; a Dixieland band will entertain. Call 265-0265.

JULY 12 House Speaker Thomas S. Foley is guest of honor at a reception in the Cannon Room of the Cannon House Office Building given by 13 Pacific Northwest corporations. Fellow House members from Washington state will join Foley at this gathering of more than 500 invited guests. Food from the Pacific Northwest will be featured..

Animation artists William Hanna and Joseph Barbera, whose creations include "The Flintstones," "The Jetsons" and "Huckleberry Hound," are guests of honor at a reception at the Circle Gallery, Georgetown, a retail art gallery that has on exhibit and for sale original animation "cels" and signed, limited edition cels. A percentage of the receipts from art sold July 12-15 will benefit the Boarder Baby Project. Call 338-6455.

Van Cleef & Arpels has designed a "hummingbird clip fashioned from diamonds with cabochon and faceted emeralds set in 18-carat gold," which it is donating for auction to benefit the new Geology, Gems and Minerals Hall of the Smithsonian Museum of Natural History. The auction will be held during a reception and preview of the exhibit "A Jeweler's Art: Masterpieces of Van Cleef & Arpels" given by the museum director and the president of Van Cleef & Arpels U.S.A. (The exhibit opens to the public July 13.) A minimum bid of $25,000 has been set for the brooch. Tickets to the reception and preview start at $150. Call 734-0128 to inquire about invitations.

.JULY 13 A Washington street party: Dominique's Restaurant's annual Bastille Day Waiters and Waitresses Race starts at 2:30 p.m. at 1900 Pennsylvania Ave. The participants balance splits of champagne and champagne glasses on service trays as they race down Pennsylvania Avenue and back. A similar race, the eighth annual Customers' Race, begins at 2 p.m.

JULY 16 The board of directors of the Washington Area Tennis Patrons Foundation Inc. is host of a "Members Night" party at the William H.G. FitzGerald Tennis Center, 16th and Kennedy streets NW, which includes the opening round of the 1990 Sovran Bank Classic -- one of the seven stops on the Association of Tennis Professionals' Championship Tour. Andre Agassi, Michael Chang, Tim Mayotte and Jimmy Connors are among the players scheduled to play in the Sovran Bank Classic. Members Night also features a light buffet supper and a player fashion show presented by Woodward & Lothrop. Tickets are $30 for members, or $40 for non-members, which includes a six-month membership to the foundation. Call 291-9888. Sovran Bank, Minolta (which is presenting the tournament) and other corporations will also be entertaining at private parties in courtside tents during the matches. For tickets to the Sovran Bank Classic, July 16-22, call 276-9101 or 1-800-PROSERV.

JULY 28 The Latin American Festival Committee's Gala Dance at the Capital Hilton features the Tito Nieves Band and Osvaldo Ayala with the Inmensidad Band. The gala is a fund-raiser for the festival. Tickets are $25 in advance and $30 at the door. The Latin American Festival is July 29 on the Washington Monument grounds. The festival features more than 40 bands and over 200 booths serving Latin American food. Call 833-9380 or 966-5804.