Do you need to know, when is the best time to go to Nicaragua? Then you should take a look here, what weather you can expect there during the year.
The climate of Nicaragua is tropical in lowlands, but cooler in highlands. The Caribbean lowlands are very rainy, the western slopes of the central highlands and the Pacific lowlands receive much less rainfall. Rainy season is from May to October.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Altagracia, Balgue, Big Corn Island, Bluefields, Boaco, Capital Region, Caribbean Nicaragua, Chinandega, El Castillo, Esteli, Granada, Isla de Ometepe, Jinotega, Juigalpa, Laguna de Apoyo, Las Peñitas, León, Little Corn Island, Managua, Masaya, Matagalpa, Miraflor Nature Reserve, Moyogalpa, Northern Highlands, Northern Pacific Coast, Ocotal, Pearl Lagoon, Playa Gigante, Playa Madera, Playa Santo Domingo, Poneloya, Popoyo, Rama, Rio San Juan Region, Rivas, San Carlos, San Juan Del Norte, San Juan del Sur, San Miguelito, Solentiname Islands, Somoto, Southern Pacific Coast, Volcán Masaya.
Let's look now what weather you can expect in the area around the capital and in many other cities. The warmest month here is May, the average temperature is 27.6 ℃ (81.68 ℉). The coldest month here is December, the average temperature is 25.4 ℃ (77.72 ℉). 
When travelling to some places in Nicaragua, always consider the altitude of the the place as well. The highest point here is Mogoton (2085 m) and the lowest point is Pacific Ocean (0 m). So there are quite big differences in altitudes in this country, so you can expect the weather to be different in different altitudes as well. 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 Nicaragua in January is this: The average temperature in Nicaragua in January is 25.8 ℃ (78.44 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 26.05 ℃ (78.89 ℉). The average rainfall is 222.9 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 11:25 (hours and minutes), in the middle of the month 11:29 and at the end of the month 11:35.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 Nicaragua in February is this: The average temperature in Nicaragua in February is 26.3 ℃ (79.34 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 26.05 ℃ (78.89 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 26.75 ℃ (80.15 ℉). The average rainfall is 114.1 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 11:35 (hours and minutes), in the middle of the month 11:44 and at the end of the month 11:53.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 Nicaragua in March is this: The average temperature in Nicaragua in March is 27.2 ℃ (80.96 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 26.75 ℃ (80.15 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 27.3 ℃ (81.14 ℉). The average rainfall is 69.5 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 11:53 (hours and minutes), in the middle of the month 12:03 and at the end of the month 12:14.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 Nicaragua in April is this: The average temperature in Nicaragua in April is 27.4 ℃ (81.32 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 27.3 ℃ (81.14 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 27.5 ℃ (81.5 ℉). The average rainfall is 103.4 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 12:14 (hours and minutes), in the middle of the month 12:24 and at the end of the month 12:33.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 Nicaragua in May is this: The average temperature in Nicaragua in May is 27.6 ℃ (81.68 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 27.5 ℃ (81.5 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 26.9 ℃ (80.42 ℉). The average rainfall is 261.5 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 12:33 (hours and minutes), in the middle of the month 12:41 and at the end of the month 12:46.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 Nicaragua in June is this: The average temperature in Nicaragua in June is 26.2 ℃ (79.16 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 26.9 ℃ (80.42 ℉). At the end of June you can expect lower temperatures, the average highest temperature is around 26 ℃ (78.8 ℉). The average rainfall is 580.1 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 12:46 (hours and minutes), in the middle of the month 12:49 and at the end of the month 12:49.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 Nicaragua in July is this: The average temperature in Nicaragua in July is 25.8 ℃ (78.44 ℉). At the beginning of July you can expect higher temperatures, the average highest temperature is around 26 ℃ (78.8 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 25.8 ℃ (78.44 ℉). The average rainfall is 836.3 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 12:49 (hours and minutes), in the middle of the month 12:46 and at the end of the month 12:40.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 Nicaragua in August is this: The average temperature in Nicaragua in August is 25.8 ℃ (78.44 ℉). At the beginning of August you can expect lower temperatures, the average highest temperature is around 25.8 ℃ (78.44 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 26.25 ℃ (79.25 ℉). The average rainfall is 635.1 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 12:40 (hours and minutes), in the middle of the month 12:32 and at the end of the month 12:23.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 Nicaragua in September is this: The average temperature in Nicaragua in September is 26.7 ℃ (80.06 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 26.25 ℃ (79.25 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 26.65 ℃ (79.97 ℉). The average rainfall is 381.1 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 12:23 (hours and minutes), in the middle of the month 12:13 and at the end of the month 12:03.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 Nicaragua in October is this: The average temperature in Nicaragua in October is 26.6 ℃ (79.88 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 26.65 ℃ (79.97 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 26.05 ℃ (78.89 ℉). The average rainfall is 415.9 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 12:03 (hours and minutes), in the middle of the month 11:53 and at the end of the month 11:44.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 Nicaragua in November is this: The average temperature in Nicaragua in November is 25.5 ℃ (77.9 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 26.05 ℃ (78.89 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 25.45 ℃ (77.81 ℉). The average rainfall is 374.3 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 11:44 (hours and minutes), in the middle of the month 11:36 and at the end of the month 11:29.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 Nicaragua in December is this: The average temperature in Nicaragua in December is 25.4 ℃ (77.72 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 25.45 ℃ (77.81 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). The average rainfall is 320 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 11:29 (hours and minutes), in the middle of the month 11:25 and at the end of the month 11:24.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.| Managua | temperature: 25.4 ℃ (77.72 ℉) | highest temperature: - | lowest temperature: - | rainfall: 320mm | rainy days: - |
| Puerto Cabezas | temperature: 26.5 ℃ (79.7 ℉) | highest temperature: - | lowest temperature: - | rainfall: 201.6mm | rainy days: - |
| Rivas | temperature: 26.7 ℃ (80.06 ℉) | highest temperature: - | lowest temperature: - | rainfall: 29.7mm | rainy days: - |
| Juigalpa | temperature: 26.1 ℃ (78.98 ℉) | highest temperature: - | lowest temperature: - | rainfall: 12.9mm | rainy days: - |
| Bluefields | temperature: 25.4 ℃ (77.72 ℉) | highest temperature: - | lowest temperature: - | rainfall: 320mm | rainy days: - |