Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Boston's coldest month, January, generally records average temperatures ranging from a high of 28.2°C (82.8°F) to a low of 21°C (69.8°F).Heat index
The average heat index in January is appraised at a hot 34°C (93.2°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The most humid month in Boston is January, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Boston is January, when the rain falls for 23.4 days and typically aggregates up to 169mm (6.65") of precipitation.Sea temperature
In January, the average sea temperature is 28.3°C (82.9°F).Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.
Daylight
The average length of the day in January in Boston is 11h and 43min.On the first day of January in Boston, sunrise is at 5:47 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 5:41 pm PST.
Sunshine
January has the least sunshine of the year in Boston, with an average of 6.4h of sunshine.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 6 during January translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Alert! Sand and water increase UV exposure due to their reflective properties.
Frequently asked questions
What time of the year is the coldest in Boston?
Is it hot in Boston during January?
What is the most humid month in Boston?
What is the average humidity in January in Boston?
What is the rainiest month in Boston?
How many days does it rain in January in Boston?
What is the water temperature in January in Boston?
How many hours of daylight does Boston have in January?
When are sunrise and sunset in January in Boston?
What is the month with the least sunshine in Boston?
How long on average sun shines in January in Boston?
When is the lowest UV index in Boston?
What is the UV index reading in January in Boston?
Average temperature in January
Boston, Philippines
- Average high temperature in January: 28.2°C
The warmest month (with the highest average high temperature) is May (32.3°C).
The month with the lowest average high temperature is January (28.2°C).
- Average low temperature in January: 21°C
The months with the highest average low temperature are October and November (22°C).
The coldest month (with the lowest average low temperature) is March (20.5°C).
Average pressure in January
Boston, Philippines
- Average pressure in January: 1010.4mbar
The month with the highest atmospheric pressure is February (1011.3mbar).
The month with the lowest atmospheric pressure is July (1009.3mbar).
Average wind speed in January
Boston, Philippines
- Average wind speed in January: 5.2km/h
The windiest month (with the highest average wind speed) is February (5.7km/h).
The calmest month (with the lowest average wind speed) is May (3.5km/h).
Average humidity in January
Boston, Philippines
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are August and September (81%).
Average rainfall in January
Boston, Philippines
- Average rainfall in January: 169mm
The wettest month (with the highest rainfall) is January (169mm).
The driest month (with the least rainfall) is March (72mm).
Average rainfall days in January
Boston, Philippines
- Average rainfall days in January: 23.4 days
The month with the highest number of rainy days is May (26.6 days).
The month with the least rainy days is December (20.8 days).
Average sea temperature in January
Boston, Philippines
- Average sea temperature in January: 28.3°C
The best month for swimming (with the highest average sea temperature) is October (29.8°C).
The coldest month (with the lowest average sea temperature) is February (27.9°C).
Average daylight in January /
Average sunshine in January
Boston, Philippines
- Average daylight in January: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January: 6h and 2min
The months with the most sunshine are August and October (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in January
Boston, Philippines
- Average sunshine days in January: 6.3 days
The month with the most sunshine days is December (8.3 days).
The month with the least sunshine days is June (3.3 days).
Average UV index in January
Boston, Philippines
- Average UV index in January: 6
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 6).
Average cloud cover in January
Boston, Philippines
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 45).
Average visibility in January
Boston, Philippines
- Average visibility in January: 6km
The months with the highest visibility are June, August and September (8km).
The months with the lowest visibility are January, April and November (6km).
Boston, Philippines
Weather forecast for your location
2. Allow the app to use your location
