Do you need to know, when is the best time to go to Newfoundland? Then you should take a look here, what weather you can expect there during the year.
Newfoundland is part of Canada. Canada is a huge country, so the climate here varies from temperate in south to subarctic and arctic in north. Winters are sometimes tough, especially in the interior, where the climate is continental. You can expect snow in some places for five months of the year. Southern coastal parts of Canada have a temperate climate, with mild and rainy winters and quite warm summers.
When speaking about the usual weather in this area, the information is relevant for example for these popular places: Bonavista, Bonavista Peninsula, Burgeo, Burnside, Carbonear, Cartwright, Central Newfoundland, Churchill Falls, Clarenville, Conception Bay South, Corner Brook, Deer Lake, Dildo, Eastern Newfoundland, Eastport, Eastport Peninsula, Fogo Island and Change Islands, Forteau, Francois, Gander, Glovertown, Grand Bruit, Grand Falls Windsor, Great Northern Peninsula, Grey River, Gros Morne National Park, Happy Adventure, Happy Valley Goose Bay, Labrador, Labrador City, Lewisporte, Mount Pearl, Nunatsiavut, Placentia, Port Hope Simpson, Port au Port Peninsula, Port aux Basques, Ramea, Rencontre East, Saint Lawrence, Salvage, Sandringham, Sandy Cove, Southern Newfoundland, St. Bernard's Jacques Fontaine, St. Chad's, St. John's, Stephenville, Terra Nova National Park, Torngat Mountains National Park, Trepassey and the Irish Loop, Twillingate, Western Newfoundland.
Let's look now what weather you can expect in the area around St Johns and in many other cities. The warmest month here is July, the average maximum temperature is 20.4 ℃ (68.72 ℉). The average minimum temperature in this month is 10.4 ℃ (50.72 ℉). The coldest month here is February, the average maximum temperature is -1.3 ℃ (29.66 ℉). The average minimum temperature in this month is -9.3 ℃ (15.26 ℉). The most rainy month here is December, the average number of rainy days is 22.2. The least rainy month here is July, the average number of rainy days is 13.6. 
When travelling around Newfoundland, always consider the altitude of the the place as well. We should remind you, that the highest point in Canada is Mount Logan (5959 m) and the lowest point is Atlantic Ocean (0 m). So there are huge differences in altitudes in this country and the weather is very different in them therefore. Keep in mind, that the temperature usually decreases by 1.2 - 1.9 ℃ (2.2 - 3.5 ℉) per 200 m (656 ft), depending on the other conditions. (And we should add, that in the very special condition named thermal inversion even the temperature may be higher in higher altitudes.)
Typical (usual) weather in Newfoundland in January is this: The average highest temperature in Newfoundland in January is -0.7 ℃ (30.74 ℉). The average lowest temperature is -8.5 ℃ (16.7 ℉). At the beginning of January you can expect higher temperatures, the average highest temperature is around 0.35 ℃ (32.63 ℉). At the end of January you can expect lower temperatures, the average highest temperature is around -1 ℃ (30.2 ℉). The average number of rainy days in January is 21.6. The average rainfall is 153.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 8:29 (hours and minutes), in the middle of the month 8:51 and at the end of the month 9:28.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in February is this: The average highest temperature in Newfoundland in February is -1.3 ℃ (29.66 ℉). The average lowest temperature is -9.3 ℃ (15.26 ℉). At the beginning of February you can expect higher temperatures, the average highest temperature is around -1 ℃ (30.2 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 0.05 ℃ (32.09 ℉). The average number of rainy days in February is 19.2. The average rainfall is 123.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 9:28 (hours and minutes), in the middle of the month 10:13 and at the end of the month 11:03.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in March is this: The average highest temperature in Newfoundland in March is 1.4 ℃ (34.52 ℉). The average lowest temperature is -6 ℃ (21.2 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 0.05 ℃ (32.09 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 3.45 ℃ (38.21 ℉). The average number of rainy days in March is 20.6. The average rainfall is 130.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:03 (hours and minutes), in the middle of the month 11:55 and at the end of the month 12:47.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Newfoundland in April is this: The average highest temperature in Newfoundland in April is 5.5 ℃ (41.9 ℉). The average lowest temperature is -1.8 ℃ (28.76 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 3.45 ℃ (38.21 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 8.15 ℃ (46.67 ℉). The average number of rainy days in April is 18.3. The average rainfall is 121.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:47 (hours and minutes), in the middle of the month 13:37 and at the end of the month 14:25.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in May is this: The average highest temperature in Newfoundland in May is 10.8 ℃ (51.44 ℉). The average lowest temperature is 1.7 ℃ (35.06 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 8.15 ℃ (46.67 ℉). At the end of May you can expect higher temperatures, the average highest temperature is around 13.6 ℃ (56.48 ℉). The average number of rainy days in May is 16.2. The average rainfall is 101.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 14:25 (hours and minutes), in the middle of the month 15:07 and at the end of the month 15:39.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Newfoundland in June is this: The average highest temperature in Newfoundland in June is 16.4 ℃ (61.52 ℉). The average lowest temperature is 6.2 ℃ (43.16 ℉). At the beginning of June you can expect lower temperatures, the average highest temperature is around 13.6 ℃ (56.48 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 18.4 ℃ (65.12 ℉). The average number of rainy days in June is 15.2. The average rainfall is 101.8 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 15:39 (hours and minutes), in the middle of the month 15:57 and at the end of the month 15:56.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in July is this: The average highest temperature in Newfoundland in July is 20.4 ℃ (68.72 ℉). The average lowest temperature is 10.4 ℃ (50.72 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 18.4 ℃ (65.12 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 20 ℃ (68 ℉). The average number of rainy days in July is 13.6. The average rainfall is 90.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 15:56 (hours and minutes), in the middle of the month 15:38 and at the end of the month 15:05.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in August is this: The average highest temperature in Newfoundland in August is 19.6 ℃ (67.28 ℉). The average lowest temperature is 11 ℃ (51.8 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 20 ℃ (68 ℉). At the end of August you can expect lower temperatures, the average highest temperature is around 17.9 ℃ (64.22 ℉). The average number of rainy days in August is 14.4. The average rainfall is 109.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 15:05 (hours and minutes), in the middle of the month 14:23 and at the end of the month 13:36.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in September is this: The average highest temperature in Newfoundland in September is 16.2 ℃ (61.16 ℉). The average lowest temperature is 7.7 ℃ (45.86 ℉). At the beginning of September you can expect higher temperatures, the average highest temperature is around 17.9 ℃ (64.22 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 13.4 ℃ (56.12 ℉). The average number of rainy days in September is 15.8. The average rainfall is 127.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:36 (hours and minutes), in the middle of the month 12:46 and at the end of the month 11:55.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in October is this: The average highest temperature in Newfoundland in October is 10.6 ℃ (51.08 ℉). The average lowest temperature is 3.4 ℃ (38.12 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 13.4 ℃ (56.12 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 8.4 ℃ (47.12 ℉). The average number of rainy days in October is 19.5. The average rainfall is 163.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:55 (hours and minutes), in the middle of the month 11:04 and at the end of the month 10:14.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in November is this: The average highest temperature in Newfoundland in November is 6.2 ℃ (43.16 ℉). The average lowest temperature is -0.5 ℃ (31.1 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 8.4 ℃ (47.12 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 3.8 ℃ (38.84 ℉). The average number of rainy days in November is 19.8. The average rainfall is 141.5 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 10:14 (hours and minutes), in the middle of the month 9:29 and at the end of the month 8:52.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Newfoundland in December is this: The average highest temperature in Newfoundland in December is 1.4 ℃ (34.52 ℉). The average lowest temperature is -5.3 ℃ (22.46 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 3.8 ℃ (38.84 ℉). At the end of December you can expect lower temperatures, the average highest temperature is around 0.35 ℃ (32.63 ℉). The average number of rainy days in December is 22.2. The average rainfall is 147.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 8:52 (hours and minutes), in the middle of the month 8:30 and at the end of the month 8:26.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.| Goose Bay | temperature: - | highest temperature: -9.4 ℃ (15.08 ℉) | lowest temperature: -18.1 ℃ (-0.58000000000001 ℉) | rainfall: 69.9mm | rainy days: 15.9 |
| St Johns | temperature: - | highest temperature: 1.4 ℃ (34.52 ℉) | lowest temperature: -5.3 ℃ (22.46 ℉) | rainfall: 147.6mm | rainy days: 22.2 |