This is the short version of Port-au-Prince climate: monthly averages, with the monthly detail underneath. The gap between Jan and Aug is 3.4 C here: 25.7 C against 29.1 C. No month dominates: the wettest is Oct at 2.42 mm/day, the driest Feb at 0.58 mm/day. Taken together that is roughly 506 mm of rain a year for the grid cell. Values come from a public open API; a successful result is cached so a later outage never blanks the page. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 27.5 C
Warmest month Aug (29.1 C)
Coldest month Jan (25.7 C)
Wettest month Oct (2.42 mm/day)
All-time record high 36.5 C
All-time record low 18.4 C
Annual precipitation 507 mm / year
Coordinates 18.5435, -72.3388
Population 1,234,742
Average monthly temperature and rainfall in Port-au-Prince
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
25.7
0.61
32.1
19.3
Feb
26.0
0.58
32.4
18.6
Mar
26.3
0.79
33.5
18.4
Apr
27.2
1.24
34.8
21.1
May
27.8
2.01
34.2
21.2
Jun
28.4
1.36
35.3
23.8
Jul
29.0
1.22
36.4
24.1
Aug
29.1
2.06
36.5
24.2
Sep
28.7
1.63
36.1
24.5
Oct
28.0
2.42
35.0
22.9
Nov
27.0
1.85
33.8
21.2
Dec
26.3
0.89
33.0
18.6
What the Port-au-Prince climate table shows
Values are multi-decadal climatological averages for the 18.5435, -72.3388 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Does Port-au-Prince get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.