January Weather in Port Royal, United States

Last updated: February 24, 2025

In January, Port Royal, United States experiences a diverse climate characterized by a maximum temperature of 26°C (80°F) and an average of 11°C (52°F), with minimum lows dropping to -11°C (13°F). This month sees 59 mm (2.3 in) of precipitation over 6 days, making outdoor activities variable. With humidity levels peaking at 86%, the air can feel quite damp, adding a distinct chill to the cool winter atmosphere. Overall, January in Port Royal showcases a blend of winter's crispness and occasional moisture, inviting residents and visitors alike to embrace the season's unique charm.

January Temperature in Port Royal

In January, Port Royal experiences a notable temperature range, with minimums dipping as low as -11°C (13°F), while the average hovers around a mild 11°C (52°F), peaking at a comfortable 26°C (80°F). This stark contrast marks the beginning of the year, following a colder December, and hints at the gradual warming trend that unfolds in the subsequent months. As the season transitions into February and March, the minimum temperatures begin to rise, signifying the end of winter's chill. By March, for instance, temperatures average 16°C (61°F), reflecting a significant shift towards spring. This upward trajectory continues into the warmer months, with remarkable spikes peaking in May and August, where maximum temperatures touch 38°C (100°F) and 37°C (99°F), respectively. Overall, January serves as a gateway to a vibrant seasonal shift, where temperatures gradually elevate, laying the groundwork for the warmth that Port Royal is known for.

January Weather in Port Royal: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Port Royal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec525761677479828178715854
Data source: Temperature data for Port Royal generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Port Royal

In January, Port Royal experiences a modest precipitation level of 59 mm (2.3 in), typically spread over just 6 days, marking the month as relatively dry compared to the heavier rainfall that follows. As the year progresses into February and March, rainfall increases slightly, reaching 78 mm (3.1 in) and 67 mm (2.6 in) respectively. This upward trend continues into the spring, with April and May recording 90 mm (3.6 in) and 93 mm (3.7 in), indicating a shift towards wetter conditions. However, it is in June through August that Port Royal really witnesses a surge, with monthly totals peaking at 184 mm (7.3 in) in August, as precipitation days climb dramatically to 22. The late summer months indicate the region is prone to heavy rainfall, setting the stage for a period of lush growth and vibrant landscapes. As temperatures begin to cool in the fall, precipitation tapers off, with October and November featuring 74 mm (2.9 in) and 83 mm (3.3 in) respectively, offering a return to drier conditions for the winter months ahead.

January Precipitation Trends in Port Royal

The chart displays monthly precipitation patterns in Port Royal, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec59786790931391741841207583116
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Port Royal

In January, Port Royal experiences a notably high average humidity level of 86%, setting the tone for a month that often feels both warm and sultry. As the year progresses, February and March maintain this high humidity with a consistent 81%, hinting at the region’s tropical climate. By April, humidity slightly declines to 79%, but the warmth persists. The trend continues with May and June holding steady at 75%, introducing a brief moment of relief. However, as summer arrives, a slight uptick occurs, reaching 80% in July before bouncing back to 81% in August. The transition into autumn sees September at 83%, followed by a gentle decline through October at 78%. As the year closes, November and December experience a return to higher levels, with 85% and 87%, respectively, ensuring that the humid embrace of Port Royal lingers well into the winter months. This recurring pattern illustrates the region's humid subtropical climate, characterized by overall moisture that maintains a warm, inviting atmosphere year-round.

January Average Humidity in Port Royal

This chart illustrates the average monthly humidity levels in Port Royal, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%81%81%79%75%75%80%81%83%78%85%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Port Royal

In Port Royal, January ushers in a moderate UV Index of 4, allowing for a burn time of 30 minutes under the sun. This marks a gentle start to the year in terms of UV exposure, especially when compared to the dramatic rise seen in the upcoming months. By February, the UV Index increases to 7, signaling a shift to a high exposure category with a reduced burn time of 25 minutes. As spring approaches, the intensity grows even further, reaching 9 in March and peaking at 10 in April. This trend continues with extreme levels of UV radiation dominating May through August, where sunbathers will need to limit their exposure to just 10 minutes. As summer wanes, there is a gradual decline in exposure levels, with the UV Index returning to a moderate 4 in December. For a comprehensive overview of the UV conditions throughout the year, visit Port Royal UV Index.

Maximum UV Index Levels in Port Royal for January

The chart shows the monthly maximum UV Index (UVI) for Port Royal in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec479101111111110864
Data source: Port Royal January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Port Royal

January in Port Royal greets the year with 192 hours of sunshine, setting a bright tone for the months ahead. As winter recedes, February sees a delightful increase to 214 hours, hinting at the approaching warmth. March blooms into spring with 282 hours, radiating optimism as nature awakens. The sunshine peaks in the late spring and summer, with May basking in 338 hours, followed by a splendid 347 hours in July. Even as summer fades, there's a graceful transition into autumn with September still enjoying 304 hours of sunshine. The year rounds out with November's 253 hours and December’s cozy 218 hours, proving that while winter may darken the days, Port Royal’s sunshine lingers to illuminate the season. Overall, the trend unfolds a vibrant cycle of increasing sunshine that celebrates the beauty and warmth of each unique season.

Monthly Sunshine Duration in Port Royal: January Highlighted

The January sunshine duration represents the total number of hours Port Royal experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec192h214h282h309h338h321h347h318h304h294h253h218h
Data source: Port Royal January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Port Royal During January

In Port Royal, January boasts a 44% chance of sunny weather, making it a reasonably bright start to the year. This figure is notably higher than the subsequent month of February, which sees only a 37% likelihood of sunshine. As winter transitions into spring, sunlight begins to increase, with April and May enjoying 54% and 53% chances, respectively. Interestingly, after reaching a peak in June, where the likelihood dips to just 27%, the summer months remain less favorable for sunshine. Conversely, as fall approaches, sunshine chances rebound, culminating in November with a promising 63% probability. Overall, while January offers a decent chance for sun, it sets the stage for a gradual increase as the season progresses, ultimately leading to sunnier days ahead.

Percentage of Sunny Days in January in Port Royal

The chart illustrates the percentage of sunny days in Port Royal throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Port Royal experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%37%38%54%53%28%30%28%52%50%63%42%
Data source: Port Royal January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Port Royal in January

In January, Port Royal enjoys approximately 10 hours of daylight, a figure that subtly begins to rise as winter gives way to the promise of spring. By February, daylight extends to 11 hours, setting the stage for the gradual increase that continues into March with a full 12 hours. This trend not only enhances outdoor activities but also brightens the atmosphere, making way for the vibrant blooms of April, which sustain 12 hours of light. As we move into the thrilling summer months of May and June, daylight reaches its peak, offering a generous 13 and then 14 hours respectively, ideal for sun-soaked adventures. This golden stretch persists into July, before subtly tapering off in August with 13 hours of light. As summer fades into autumn, daylight begins its decline, marked by 12 hours in September and gradually settling back to 10 hours in both October and November, before cycling back into winter’s embrace with 10 hours in December. This rhythmic pattern of daylight not only defines the seasons but also shapes the lifestyle in Port Royal, making each month a unique experience with nature's cycles.

Average Daylight Hours in Port Royal for January

The chart illustrates the variation in daylight duration in Port Royal throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 16m11h 1m12h12h 59m13h 49m14h 14m14h13h 16m12h 19m11h 19m10h 28m10h 2m
Data source: Port Royal daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Port Royal

In January, Port Royal experiences a gentle average wind speed of 3.4 m/s (8 mph), setting the tone for the winter months. As the year progresses into February, the winds slightly decrease to 3.3 m/s (7 mph), hinting at a transition towards calmer conditions. March and April see a resurgence in wind strength, maintaining a consistent 3.5 m/s (8 mph), invigorating the atmosphere as spring approaches. However, as summer arrives, the winds gradually soften, reaching a low of 2.5 m/s (6 mph) in August and continuing to gently taper off through September. The trend shifts once more in the fall, with wind speeds picking up slightly to 3.1 m/s (7 mph) in both November and December. This rhythmic ebb and flow of wind throughout the year in Port Royal illustrates not just a seasonal dance, but also invites residents and visitors alike to embrace each shift in nature's embrace.

Average January Wind Speed in Port Royal

The chart displays monthly wind speed patterns in Port Royal, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.4 m/s3.33.53.53.43.12.72.52.42.73.13.1
Data source: Port Royal January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Port Royal Compares to Other Months

The weather in Port Royal changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Port Royal and find detailed weather information for every month.

In January, temperatures in Port Royal range from a chilly minimum of -11°C (13°F) to a comfortable maximum of 26°C (80°F), with an average temperature of around 11°C (52°F). The month sees a total precipitation of 59 mm (2.3 in) over about 6 days, contributing to a relatively high humidity level of 86%.

In contrast, February experiences milder temperatures, with a minimum of -2°C (28°F), an average of 14°C (57°F), and a maximum of 29°C (84°F). Precipitation increases slightly to 78 mm (3.1 in) across 9 days, accompanied by a decrease in humidity to 81%. For more detailed weather insights, you can check Port Royal weather in February.

In January, temperatures in Port Royal range dramatically, with a minimum of -11°C (13°F) and a maximum of 26°C (80°F), averaging around 11°C (52°F). The month experiences relatively high humidity at 86% and sees about 59 mm (2.3 in) of precipitation across 6 days. In contrast, March brings milder conditions with a minimum of -2°C (29°F) and a maximum reaching 32°C (90°F), averaging 16°C (61°F). Although March has slightly more precipitation at 67 mm (2.6 in) over 7 days, the humidity is lower at 81%. For more detailed insights into March weather, you can visit Port Royal weather in March.

The weather in January and April presents a marked contrast, with January experiencing chillier temperatures and higher humidity. In January, temperatures range from a frigid minimum of -11°C (13°F) to a comfortable maximum of 26°C (80°F), with an average temperature of 11°C (52°F) and humidity levels at 86%. In comparison, April brings warmer conditions, with minimum temperatures around 3°C (37°F), an average of 19°C (67°F), and a maximum reaching 33°C (91°F). Although April sees a slight increase in precipitation, totaling 90 mm (3.6 in) over 7 days, the atmosphere is generally drier with lower humidity at 79%. For more detailed insights on weather conditions during this month, you can visit Port Royal weather in April.

January and May present stark contrasts in weather patterns. In January, temperatures can dip as low as -11°C (13°F) and reach a maximum of 26°C (80°F), with an average temperature of 11°C (52°F). This month also experiences higher humidity levels at 86% and sees precipitation on about 6 days, totaling 59 mm (2.3 in). In comparison, May offers a much warmer climate, with minimum temperatures around 9°C (49°F) and highs reaching 38°C (100°F), averaging 24°C (75°F). Although May witnesses more days of precipitation—approximately 11 days and a total of 93 mm (3.7 in)—the humidity is lower at 75%. For more specific insights on May conditions, you can check Port Royal weather in May.

January and June showcase stark contrasts in weather. January experiences colder temperatures, with minimums dropping to -11°C (13°F) and an average of 11°C (52°F), while June's minimum temperature is significantly warmer at 16°C (61°F) and averages a comfortable 26°C (79°F). Precipitation is more frequent in June, with 139 mm (5.5 in) falling over 18 days compared to January's 59 mm (2.3 in) over just 6 days. Additionally, January has a higher humidity level at 86%, whereas June's humidity is a more moderate 75%. For more detailed information, you can check out Port Royal weather in June.

In January, the weather experiences significant chill, with temperatures ranging from a frigid minimum of -11°C (13°F) to a pleasant maximum of 26°C (80°F). While the average temperature hovers around 11°C (52°F), the high humidity of 86% contributes to a damp atmosphere, accompanied by about 59 mm (2.3 in) of precipitation over roughly 6 days. In contrast, July brings warmth and humidity, showcasing temperatures that range from a low of 20°C (69°F) to a scorching high of 36°C (98°F), with an average temperature around 28°C (82°F). However, this warmth comes with increased rainfall, totaling approximately 174 mm (6.8 in) across 19 days. For a more detailed look at the weather during this summer month, check out Port Royal weather in July.

January and August present strikingly different weather conditions. In January, temperatures can drop as low as -11°C (13°F) and peak at 26°C (80°F), with an average temperature of 11°C (52°F). The month sees about 59 mm (2.3 in) of precipitation over just 6 days, coupled with high humidity levels at 86%. In contrast, August delivers a much warmer climate, with minimum temperatures starting at 21°C (69°F) and reaching a maximum of 37°C (99°F) for an average of 27°C (81°F). However, it also experiences significantly higher precipitation, with 184 mm (7.3 in) spread over 22 days, while maintaining a slightly lower humidity of 81%. For a detailed look at the weather during this warmer month, check out Port Royal weather in August.

In January, the weather is markedly colder, with temperatures ranging from a frigid minimum of -11°C (13°F) to a maximum of 26°C (80°F), and an average of 11°C (52°F). The month experiences a relatively low level of precipitation, totaling 59 mm (2.3 in) over 6 days, alongside high humidity levels reaching 86%.

In contrast, September offers a much warmer climate, with temperatures starting at a minimum of 14°C (57°F) and peaking at an impressive 35°C (96°F), averaging around 26°C (78°F). Rainfall during this month is significantly higher, averaging 120 mm (4.7 in) across 14 days, and humidity remains slightly lower at 83%. For more specific details, you can check Port Royal weather in September.

January and October display contrasting weather patterns, with January experiencing colder temperatures that range from a minimum of -11°C (13°F) to a maximum of 26°C (80°F). In contrast, October sees a milder temperature range, with lows of 3°C (38°F) and highs reaching up to 34°C (93°F). Precipitation is slightly higher in October, with 74 mm (2.9 in) over 9 days compared to January's 59 mm (2.3 in) over 6 days. Additionally, January has a higher humidity level at 86%, while October's humidity is more comfortable at 78%. For more details, you can check Port Royal weather in October.

January and November present contrasting weather conditions. In January, temperatures range from a chilly minimum of -11°C (13°F) to an average of 11°C (52°F), peaking at 26°C (80°F), with an overall higher humidity of 86%. The month experiences approximately 59 mm (2.3 in) of precipitation over about 6 days. In contrast, November features milder temperatures, with a minimum of -1°C (31°F), an average of 15°C (59°F), and a maximum of 30°C (86°F). Precipitation increases slightly to 83 mm (3.3 in) spread over 8 days, and humidity remains relatively stable at 85%. For more specific details on November weather, you can check Port Royal weather in November.

When comparing the weather in January and December, January experiences a wider temperature range, with minimums dipping down to -11°C (13°F) and maximums reaching up to 26°C (80°F). This is in contrast to December, where temperatures are milder, with minimums of -3°C (26°F) and similar maximums of 26°C (79°F). Precipitation levels also differ; January sees about 59 mm (2.3 in) of rain over 6 days, while December has significantly more with 116 mm (4.6 in) over 9 days. Both months exhibit high humidity levels, with January averaging 86% and December slightly higher at 87%. For more detailed information on December weather, visit Port Royal weather in December.

Compare Port Royal's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Port Royal

January in Port Royal presents a stark contrast to the warmer months, characterized by its cooler temperatures and notable humidity levels. With an average temperature that hovers around 11°C (52°F), this month typically feels much chillier compared to the summer highs. The presence of substantial precipitation, averaging 59 mm over just six days, further contributes to the feeling of winter. By immersing yourself in this unique January climate, you'll experience a different side of Port Royal that is often overshadowed by its warmer seasons. For a deeper dive into the year-round conditions, explore the detailed information available at Port Royal Climate.