Table S5.

Simulated directed voyages: Second semester

Crossing	AWS	July	August	September	October	November	December
Samoa–Marquesas	1	59% (105–135) [115]	55% (87–181) [99]	0%	13% (98–121) [105]	0%	31% (85–103) [94]
Samoa–Society Islands	1	20% (74–140) [109]	0%	0%	8% (67–79) [73]	0%	0%
Marquesas–Hawai'i	2.5	0%	1% [23]	6% (22–25) [23]	1% [25]	0%	0%
Marquesas–Hawai'i	3	2% (17–18) [18]	8% (20–25) [22]	44% (19–27) [24]	15% (17–26) [22]	0%	0%
Society Islands–Hawai'i	2.5	9% (39–55) [46]	17% (43–104) [57]	29% (33–63) [47]	38% (35–65) [50]	5% (51–64) [56]	3% (53–64) [58]
Mangareva–Easter	1	0%	0%	0%	0%	0%	73% (45–48) [47]
Marquesas–Easter	1	0%	57% (105–125) [109]	0%	0%	0%	0%
Society–Easter	1	0%	0%	0%	0%	0%	0%
Society Islands–New Zealand	2	15% (38–105) [64]	24% (39–117) [57]	14% (34–68) [46]	18% (29–96) [46]	27% (33–74) [43]	29% (26–62) [39]

Crossing, starting point, and destination; HS, minimum headway speeds allowed by simulation. Month columns as in Table S1.