Temperatures in January
It's hot in January in Roseau with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 30°C. At night, you can expect temperatures between 22°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Roseau in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in Roseau with hot temperatures, averaging around 30°C during the day and nights close to 23°C. Plenty of days with a chance of precipitation.
Mid-January
By mid-January, the average daytime temperature stays the same at 30°C, with nights close to 23°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of January
By the end of January, the average daytime temperature in Roseau will be around 30°C, with nights close to 23°C. A shower might show up, but overall the weather will be dry and sunny.
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Water temperature
The water temperature at Roseau is 28°C this month. Nice and warm for a swim.
Precipitation in January
In January, there is an average of 127 mm of precipitation, spread over 17 days. The wind speed is around 5 Bft, mostly coming from the East.
Across the whole month, the average precipitation chance is 54% per day. Though it seems average, the weather’s variable. Some days have higher, others lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Roseau. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Roseau in January |
London | ||
|---|---|---|---|
 Average Temperature |
30°C | 8°C | |
 High Temp |
30°C | 9°C | |
| Low Temp |
29°C | 6°C | |
 Total Precipitation |
127 mm | 58 mm | |
| Rainy Days |
17 days | 9 days | |
December
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is January a good time to visit Roseau?
After some sun? Then January isn’t the best time to be in Roseau. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Roseau in January
With 32°C, Roseau hit the highest temperature in the last 10 years in January 2021. The lowest daytime temperature in this month was 26°C in 2016. The extreme night temperatures ranged from a low of 19°C to a high of 25°C.
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Daily Temperature in January in Roseau
This chart shows the average daily temperatures, both day and night, for each day in January in Roseau, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Roseau
The chart below shows the average daily precipitation in January for Roseau, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 17 days of rain in Roseau.
Daily UV Index in January in Roseau
This chart shows the average daily UV index in January in Roseau, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Roseau Over the Years
This chart shows the average temperature in January in Roseau, measured in degrees Celsius, over the past years.
Total Precipitation in January in Roseau Over the Years
This chart shows the average precipitation in January in Roseau, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in January for Roseau
Click on a specific day in January for detailed info on the typical weather on that day in Roseau. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Roseau
Have you been to Roseau in January?
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Average Weather in Roseau by Month
Click on a month below to see detailed weather info for Roseau. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
