Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Portal features a humid subtropical climate (Cfa). Temperatures typically range between 11 °C (51 °F) and 28 °C (83 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 1119 mm (44.1 inches) and receives 123 rainy days on the 1 mm (0.04 inches) threshold annually. Portal enjoys an average of 3304 hours of sunshine throughout the year, and daylight varies from 10 hours 2 minutes to 14 hours 13 minutes per day.
The warmest months in Portal are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (80 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 14 °C (51 - 57 °F) throughout the day. On average each year, Portal experiences 194 days above 25 °C (77.0 °F) and 13 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 28°C (83°F) |
30°C (86°F) |
32°C (91°F) |
36°C (98°F) |
39°C (102°F) |
37°C (99°F) |
39°C (103°F) |
40°C (104°F) |
38°C (101°F) |
38°C (100°F) |
31°C (87°F) |
27°C (80°F) |
| Mean maximum | 26°C (79°F) |
28°C (83°F) |
30°C (87°F) |
32°C (90°F) |
36°C (97°F) |
36°C (97°F) |
38°C (101°F) |
37°C (99°F) |
36°C (98°F) |
34°C (94°F) |
29°C (85°F) |
25°C (77°F) |
| Average high | 16°C (62°F) |
20°C (68°F) |
23°C (73°F) |
26°C (79°F) |
30°C (87°F) |
32°C (90°F) |
34°C (94°F) |
33°C (92°F) |
32°C (90°F) |
28°C (83°F) |
21°C (70°F) |
18°C (64°F) |
| Daily mean | 11°C (51°F) |
14°C (57°F) |
16°C (61°F) |
19°C (67°F) |
24°C (76°F) |
27°C (80°F) |
28°C (83°F) |
28°C (82°F) |
26°C (79°F) |
22°C (72°F) |
14°C (58°F) |
12°C (54°F) |
| Average low | 5°C (42°F) |
8°C (47°F) |
10°C (50°F) |
13°C (56°F) |
18°C (65°F) |
22°C (72°F) |
24°C (75°F) |
24°C (75°F) |
21°C (71°F) |
17°C (62°F) |
9°C (48°F) |
7°C (44°F) |
| Mean minimum | -4°C (25°F) |
-2°C (29°F) |
-1°C (30°F) |
4°C (39°F) |
10°C (51°F) |
17°C (63°F) |
21°C (70°F) |
20°C (69°F) |
15°C (60°F) |
7°C (46°F) |
0°C (32°F) |
-2°C (29°F) |
| Minimum | -7°C (20°F) |
-4°C (25°F) |
-3°C (26°F) |
1°C (34°F) |
8°C (47°F) |
14°C (58°F) |
19°C (66°F) |
17°C (64°F) |
13°C (56°F) |
3°C (38°F) |
-2°C (29°F) |
-4°C (24°F) |
Compare temperature, precipitation, sunshine, UV index in Portal, Georgia, United States with other places around the world.
Portal usually has the most precipitation in July, August and December, with an average of 13 rainy days and 122 mm (4.8 inches) of precipitation per month. The driest months in Portal are March, October and November. On average, 68 mm (2.7 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 81 (3.2) | 97 (3.8) | 68 (2.7) | 92 (3.6) | 78 (3.1) | 112 (4.4) | 127 (5.0) | 119 (4.7) | 87 (3.4) | 76 (3.0) | 61 (2.4) | 121 (4.8) |
| Average precipitation days (≥ 1 mm) | 8 | 10 | 10 | 8 | 8 | 14 | 15 | 17 | 10 | 7 | 7 | 9 |
The sunniest months in Portal are May, July and August, when the sun shines an average of 10 hours 37 minutes a day. Least sunny months in Portal: January, February and December receive an average of 6 hours 24 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 180 | 194 | 280 | 296 | 324 | 318 | 343 | 320 | 304 | 287 | 246 | 207 |
| Mean daily daylight hours | 10h 16m | 11h 1m | 12h 0m | 12h 59m | 13h 49m | 14h 13m | 14h 0m | 13h 16m | 12h 19m | 11h 19m | 10h 28m | 10h 2m |
Portal experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Portal UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 4 | 7 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 6 | 4 |
Discover in-depth weather details for every month in Portal. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Portal's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.