Testing began at 10am and concluded at 6pm, but wind and rain severely reduced track activity.
Ivan Silva and Franco Battaini recorded dry times this morning, just before the rain arrived.
After several hours of silence waiting in vain for better weather, most riders began taking to the track with wet settings from around 2pm. Dani Pedrosa set his best time during a long run in the fully wet conditions.
The track then finally began drying towards the end of the day - producing a flurry of late lap-time activity that ended with Nicky Hayden fastest.
The three-day test marks the first time that the full 21 rider grid, including the nine new CRT entries, have been on track at the same time.
Honda's reigning champion Casey Stoner was fastest at the two previous tests, held in Malaysia, and also on day one in Jerez.
for pictures from the test...
1. Nicky Hayden
USA Ducati Team (GP12) 1m 40.755s
2. Karel Abraham
CZE Cardion AB Motoracing (GP12) 1m 41.661s
3. Ben Spies
USA Yamaha Factory (YZR-M1) 1m 41.726s
4. Alvaro Bautista
ESP San Carlo Honda Gresini (RC213V) 1m 42.711s
5. Hector Barbera
ESP Pramac Racing (GP12) 1m 43.288s
6. Ivan Silva
ESP Avintia (FTR-Kawasaki)* 1m 43.613s
7. Franco Battaini
ITA Ducati Test Rider (GP12) 1m 44.264s
8. Michele Pirro
ITA San Carlo Honda Gresini (FTR-Honda)* 1m 44.761s
9. James Ellison
GBR PBM (ART)* 1m 44.969s
10. Danilo Petrucci
ITA Came Iodaracing (Ioda-Aprilia)* 1m 45.336s
11. Colin Edwards
USA NGM Forward Racing (Suter-BMW)* 1m 47.968s
12. Dani Pedrosa
ESP Repsol Honda (RC213V) 1m 49.822s
13. Jorge Lorenzo
ESP Yamaha Factory (YZR-M1) 1m 50.088s
14. Cal Crutchlow
GBR Monster Yamaha Tech3 (YZR-M1) 1m 51.127s
15. Andrea Dovizioso
ITA Monster Yamaha Tech3 (YZR-M1) 1m 51.702s
16. Mattia Pasini
ITA Speed Master (ART)* 1m 51.772s
17. Stefan Bradl
GER LCR Honda (RC213V) 1m 51.778s
18. Casey Stoner
AUS Repsol Honda (RC213V) 1m 51.856s
19. Valentino Rossi
ITA Ducati Team (GP12) 1m 51.910s
20. Randy De Puniet
FRA Power Electronics Aspar (ART)* 1m 52.397s
21. Aleix Espargaro
ESP Power Electronics Aspar (ART)* 1m 57.718s
22. Yonny Hernandez
COL Avintia (FTR-Kawasaki)* No Time
* CRT entry.
Fastest day one time:
AUS Honda 1m 39.146s
Official Jerez MotoGP lap records:
ESP Yamaha 1m 38.189s
Fastest race lap:
ESP Honda 1m 39.731s