Temperatures in January
It's warm in January in Johnston Atoll with an average temperature of 26°C. Temperatures this month range from a low of 26°C to a high of 27°C. At night, you can expect temperatures between 25°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Johnston Atoll 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 Johnston Atoll with hot temperatures, averaging around 27°C during the day and nights close to 26°C. There’s little chance of precipitation. The weather is mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-January
By mid-January, the average daytime temperature stays the same at 27°C, with nights close to 26°C. There might be a few showers during this period, but plenty of dry days with sunshine too. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of January
By the end of January, the average daytime temperature in Johnston Atoll will be around 26°C, with nights close to 25°C. A shower might show up, but overall the weather will be dry and sunny.
Precipitation in January
In January, there is an average of 32 mm of precipitation, spread over 9 days. The wind speed is around 5 Bft, mostly coming from the East.
The average precipitation chance is 28% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Johnston Atoll. 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.
Johnston Atoll in January |
UK | ||
|---|---|---|---|
 Average Temperature |
26°C | 8°C | |
 High Temp |
27°C | 9°C | |
| Low Temp |
26°C | 6°C | |
 Total Precipitation |
32 mm | 58 mm | |
| Rainy Days |
9 days | 9 days | |
December
UV index
The UV index is a maximum of 8 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 Johnston Atoll?
Want nice weather? Then January is a great time to be in Johnston Atoll. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Johnston Atoll in January
With 28°C, Johnston Atoll hit the highest temperature in the last 10 years in January 2020. The lowest daytime temperature in this month was 24°C in 2015. The extreme night temperatures ranged from a low of 22°C to a high of 27°C.
Check out the climate of Johnston Atoll for all months and discover the best travel time
Daily Temperature in January in Johnston Atoll
This chart shows the average daily temperatures, both day and night, for each day in January in Johnston Atoll, 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 Johnston Atoll
The chart below shows the average daily precipitation in January for Johnston Atoll, 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 9 days of rain in Johnston Atoll.
Daily UV Index in January in Johnston Atoll
This chart shows the average daily UV index in January in Johnston Atoll, 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 Johnston Atoll Over the Years
This chart shows the average temperature in January in Johnston Atoll, measured in degrees Celsius, over the past years.
Total Precipitation in January in Johnston Atoll Over the Years
This chart shows the average precipitation in January in Johnston Atoll, 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 Johnston Atoll
Click on a specific day in January for detailed info on the typical weather on that day in Johnston Atoll. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Johnston Atoll
Have you been to Johnston Atoll in January?
Share your weather experience in January in Johnston Atoll.
Average Weather in Johnston Atoll by Month
Click on a month below to see detailed weather info for Johnston Atoll. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Johnston Atoll for all months at once
