Roseau climate

Roseau Weather in January

NASA POWER reanalysis for the half-degree grid cell around Roseau, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 27°C on January 1 to 26°C on January 31, and lows from 25°C to 25°C. Normal precipitation for the month is 71 mm over about 19 wet days.

January day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Roseau, in °C, with the record for each date.22242628151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

January at a glance

Average high
26°C
Average low
25°C
Precipitation
71 mm
Reanalysis high
28°CJan 23, 2010
Reanalysis low
23°CJan 31, 1992
Daylight
11 h 14 min to 11 h 28 min
Cloud cover
40%
Humidity
77%
Dew point
21°C
Wind
27.4 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jan 127°C25°C27°C 200224°C 199264%
Jan 227°C25°C27°C 202024°C 199266%
Jan 327°C25°C27°C 201024°C 199266%
Jan 427°C25°C27°C 200224°C 200167%
Jan 527°C25°C28°C 201024°C 200167%
Jan 627°C25°C28°C 200324°C 200167%
Jan 726°C25°C28°C 201024°C 199568%
Jan 826°C25°C28°C 200324°C 199468%
Jan 926°C25°C28°C 202023°C 199568%
Jan 1026°C25°C28°C 200323°C 199567%
Jan 1126°C25°C28°C 199624°C 199567%
Jan 1226°C25°C27°C 199624°C 199565%
Jan 1326°C25°C28°C 201024°C 199264%
Jan 1426°C25°C27°C 201024°C 199263%
Jan 1526°C25°C27°C 201024°C 200063%
Jan 1626°C25°C27°C 200323°C 200062%
Jan 1726°C25°C27°C 201023°C 200061%
Jan 1826°C25°C27°C 200323°C 199260%
Jan 1926°C25°C27°C 201024°C 199258%
Jan 2026°C25°C27°C 201024°C 199158%
Jan 2126°C25°C27°C 199824°C 199456%
Jan 2226°C25°C27°C 201023°C 199354%
Jan 2326°C25°C28°C 201024°C 199154%
Jan 2426°C25°C27°C 202024°C 199353%
Jan 2526°C25°C27°C 199824°C 199652%
Jan 2626°C25°C27°C 202024°C 199652%
Jan 2726°C25°C27°C 200323°C 199651%
Jan 2826°C25°C27°C 202023°C 199251%
Jan 2926°C25°C27°C 201123°C 200550%
Jan 3026°C25°C27°C 202023°C 199251%
Jan 3126°C25°C27°C 202023°C 199251%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Roseau, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (AST).

January 1
sunrise 6:32 AM, sunset 5:46 PM
January 31
sunrise 6:35 AM, sunset 6:03 PM

Every day of January: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.